- Linux-kselftest-mirror - lists.linaro.org

[PATCH net-next v5 0/7] tun: Unify vnet implementation

by Akihiko Odaki

When I implemented virtio's hash-related features to tun/tap [1], I found tun/tap does not fill the entire region reserved for the virtio header, leaving some uninitialized hole in the middle of the buffer after read()/recvmesg(). This series fills the uninitialized hole. More concretely, the num_buffers field will be initialized with 1, and the other fields will be inialized with 0. Setting the num_buffers field to 1 is mandated by virtio 1.0 [2]. The change to virtio header is preceded by another change that refactors tun and tap to unify their virtio-related code. [1]: https://lore.kernel.org/r/20241008-rss-v5-0-f3cf68df005d@daynix.com [2]: https://lore.kernel.org/r/20241227084256-mutt-send-email-mst@kernel.org/ Signed-off-by: Akihiko Odaki <akihiko.odaki(a)daynix.com> --- Changes in v5: - s/vnet_hdr_len_sz/vnet_hdr_sz/ for patch "tun: Decouple vnet handling" (Willem de Bruijn) - Changed to inline vnet implementations to TUN and TAP. - Dropped patch "tun: Avoid double-tracking iov_iter length changes" and "tap: Avoid double-tracking iov_iter length changes". - Link to v4: https://lore.kernel.org/r/20250120-tun-v4-0-ee81dda03d7f@daynix.com Changes in v4: - s/sz/vnet_hdr_len_sz/ for patch "tun: Decouple vnet handling" (Willem de Bruijn) - Reverted to add CONFIG_TUN_VNET. - Link to v3: https://lore.kernel.org/r/20250116-tun-v3-0-c6b2871e97f7@daynix.com Changes in v3: - Dropped changes to fill the vnet header. - Splitted patch "tun: Unify vnet implementation". - Reverted spurious changes in patch "tun: Unify vnet implementation". - Merged tun_vnet.c into TAP. - Link to v2: https://lore.kernel.org/r/20250109-tun-v2-0-388d7d5a287a@daynix.com Changes in v2: - Fixed num_buffers endian. - Link to v1: https://lore.kernel.org/r/20250108-tun-v1-0-67d784b34374@daynix.com --- Akihiko Odaki (7): tun: Refactor CONFIG_TUN_VNET_CROSS_LE tun: Keep hdr_len in tun_get_user() tun: Decouple vnet from tun_struct tun: Decouple vnet handling tun: Extract the vnet handling code tap: Keep hdr_len in tap_get_user() tap: Use tun's vnet-related code MAINTAINERS | 2 +- drivers/net/tap.c | 168 ++++++------------------------------------ drivers/net/tun.c | 193 ++++++------------------------------------------- drivers/net/tun_vnet.h | 184 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 231 insertions(+), 316 deletions(-) --- base-commit: a32e14f8aef69b42826cf0998b068a43d486a9e9 change-id: 20241230-tun-66e10a49b0c7 Best regards, -- Akihiko Odaki <akihiko.odaki(a)daynix.com>

3 months

2
16
0 0

[PATCH net-next, v7 1/2] netlink: support dumping IPv4 multicast addresses

by Yuyang Huang

Extended RTM_GETMULTICAST to support dumping joined IPv4 multicast addresses, in addition to the existing IPv6 functionality. This allows userspace applications to retrieve both IPv4 and IPv6 multicast addresses through similar netlink command and then monitor future changes by registering to RTNLGRP_IPV4_MCADDR and RTNLGRP_IPV6_MCADDR. Cc: Maciej Żenczykowski <maze(a)google.com> Cc: Lorenzo Colitti <lorenzo(a)google.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: Yuyang Huang <yuyanghuang(a)google.com> --- Changelog since v6: - Move `inet_fill_args` and `inet_fill_ifmcaddr` from igmp.h to igmp_internal.h to avoid exposing these two definitions kernel wide. Changelog since v5: - Move the test case to a separate patch. - Refactor the code to remove the dependency on `enum addr_type_t type`. - Return error if `fillargs->event` is not set properly. - Return -EINVAL in an unreachable code path. Changelog since v4: - Fixes a bug where fillargs->event was not initialized in the code path for dumping ifaddr. - Fixes a bug where reply messages contain the wrong sequence number. - Minor style fixes. - Adds a ynl selftest. Changelog since v3: - Refactor in_dev_dump_addr() to break down the logic into two separate functions to simplify the logic. Changelog since v2: - Fix checkpatch.pl warnings. - Remove one redundant EXPORT_SYMBOL(). Changelog since v1: - Minor style fixes. - Use for_each_pmc_rcu() instead of for_each_pmc_rtnl(). include/linux/igmp_internal.h | 17 ++++++++ net/ipv4/devinet.c | 77 ++++++++++++++++++++++++++++------- net/ipv4/igmp.c | 14 +++++-- 3 files changed, 90 insertions(+), 18 deletions(-) create mode 100644 include/linux/igmp_internal.h diff --git a/include/linux/igmp_internal.h b/include/linux/igmp_internal.h new file mode 100644 index 000000000000..0a1bcc8ec8e1 --- /dev/null +++ b/include/linux/igmp_internal.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _LINUX_IGMP_INTERNAL_H +#define _LINUX_IGMP_INTERNAL_H + +struct inet_fill_args { + u32 portid; + u32 seq; + int event; + unsigned int flags; + int netnsid; + int ifindex; +}; + +int inet_fill_ifmcaddr(struct sk_buff *skb, struct net_device *dev, + const struct ip_mc_list *im, + struct inet_fill_args *args); +#endif diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index c8b3cf5fba4c..5292202fd1ea 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -46,6 +46,7 @@ #include <linux/notifier.h> #include <linux/inetdevice.h> #include <linux/igmp.h> +#include <linux/igmp_internal.h> #include <linux/slab.h> #include <linux/hash.h> #ifdef CONFIG_SYSCTL @@ -107,15 +108,6 @@ static const struct nla_policy ifa_ipv4_policy[IFA_MAX+1] = { [IFA_PROTO] = { .type = NLA_U8 }, }; -struct inet_fill_args { - u32 portid; - u32 seq; - int event; - unsigned int flags; - int netnsid; - int ifindex; -}; - #define IN4_ADDR_HSIZE_SHIFT 8 #define IN4_ADDR_HSIZE (1U << IN4_ADDR_HSIZE_SHIFT) @@ -1846,9 +1838,38 @@ static int inet_valid_dump_ifaddr_req(const struct nlmsghdr *nlh, return 0; } -static int in_dev_dump_addr(struct in_device *in_dev, struct sk_buff *skb, - struct netlink_callback *cb, int *s_ip_idx, - struct inet_fill_args *fillargs) +static int in_dev_dump_ifmcaddr(struct in_device *in_dev, struct sk_buff *skb, + struct netlink_callback *cb, int *s_ip_idx, + struct inet_fill_args *fillargs) +{ + struct ip_mc_list *im; + int ip_idx = 0; + int err; + + for (im = rcu_dereference(in_dev->mc_list); + im; + im = rcu_dereference(im->next_rcu)) { + if (ip_idx < *s_ip_idx) { + ip_idx++; + continue; + } + err = inet_fill_ifmcaddr(skb, in_dev->dev, im, fillargs); + if (err < 0) + goto done; + + nl_dump_check_consistent(cb, nlmsg_hdr(skb)); + ip_idx++; + } + err = 0; + ip_idx = 0; +done: + *s_ip_idx = ip_idx; + return err; +} + +static int in_dev_dump_ifaddr(struct in_device *in_dev, struct sk_buff *skb, + struct netlink_callback *cb, int *s_ip_idx, + struct inet_fill_args *fillargs) { struct in_ifaddr *ifa; int ip_idx = 0; @@ -1874,6 +1895,21 @@ static int in_dev_dump_addr(struct in_device *in_dev, struct sk_buff *skb, return err; } +static int in_dev_dump_addr(struct in_device *in_dev, struct sk_buff *skb, + struct netlink_callback *cb, int *s_ip_idx, + struct inet_fill_args *fillargs) +{ + switch (fillargs->event) { + case RTM_NEWADDR: + return in_dev_dump_ifaddr(in_dev, skb, cb, s_ip_idx, fillargs); + case RTM_GETMULTICAST: + return in_dev_dump_ifmcaddr(in_dev, skb, cb, s_ip_idx, + fillargs); + default: + return -EINVAL; + } +} + /* Combine dev_addr_genid and dev_base_seq to detect changes. */ static u32 inet_base_seq(const struct net *net) @@ -1889,13 +1925,14 @@ static u32 inet_base_seq(const struct net *net) return res; } -static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) +static int inet_dump_addr(struct sk_buff *skb, struct netlink_callback *cb, + int event) { const struct nlmsghdr *nlh = cb->nlh; struct inet_fill_args fillargs = { .portid = NETLINK_CB(cb->skb).portid, .seq = nlh->nlmsg_seq, - .event = RTM_NEWADDR, + .event = event, .flags = NLM_F_MULTI, .netnsid = -1, }; @@ -1949,6 +1986,16 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) return err; } +static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) +{ + return inet_dump_addr(skb, cb, RTM_NEWADDR); +} + +static int inet_dump_ifmcaddr(struct sk_buff *skb, struct netlink_callback *cb) +{ + return inet_dump_addr(skb, cb, RTM_GETMULTICAST); +} + static void rtmsg_ifa(int event, struct in_ifaddr *ifa, struct nlmsghdr *nlh, u32 portid) { @@ -2845,6 +2892,8 @@ static const struct rtnl_msg_handler devinet_rtnl_msg_handlers[] __initconst = { {.protocol = PF_INET, .msgtype = RTM_GETNETCONF, .doit = inet_netconf_get_devconf, .dumpit = inet_netconf_dump_devconf, .flags = RTNL_FLAG_DOIT_UNLOCKED | RTNL_FLAG_DUMP_UNLOCKED}, + {.owner = THIS_MODULE, .protocol = PF_INET, .msgtype = RTM_GETMULTICAST, + .dumpit = inet_dump_ifmcaddr, .flags = RTNL_FLAG_DUMP_UNLOCKED}, }; void __init devinet_init(void) diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 3da126cea884..ac3c45bdbdf0 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -81,6 +81,7 @@ #include <linux/skbuff.h> #include <linux/inetdevice.h> #include <linux/igmp.h> +#include <linux/igmp_internal.h> #include <linux/if_arp.h> #include <linux/rtnetlink.h> #include <linux/times.h> @@ -1432,14 +1433,16 @@ static void ip_mc_hash_remove(struct in_device *in_dev, *mc_hash = im->next_hash; } -static int inet_fill_ifmcaddr(struct sk_buff *skb, struct net_device *dev, - const struct ip_mc_list *im, int event) +int inet_fill_ifmcaddr(struct sk_buff *skb, struct net_device *dev, + const struct ip_mc_list *im, + struct inet_fill_args *args) { struct ifa_cacheinfo ci; struct ifaddrmsg *ifm; struct nlmsghdr *nlh; - nlh = nlmsg_put(skb, 0, 0, event, sizeof(struct ifaddrmsg), 0); + nlh = nlmsg_put(skb, args->portid, args->seq, args->event, + sizeof(struct ifaddrmsg), args->flags); if (!nlh) return -EMSGSIZE; @@ -1468,6 +1471,9 @@ static int inet_fill_ifmcaddr(struct sk_buff *skb, struct net_device *dev, static void inet_ifmcaddr_notify(struct net_device *dev, const struct ip_mc_list *im, int event) { + struct inet_fill_args fillargs = { + .event = event, + }; struct net *net = dev_net(dev); struct sk_buff *skb; int err = -ENOMEM; @@ -1479,7 +1485,7 @@ static void inet_ifmcaddr_notify(struct net_device *dev, if (!skb) goto error; - err = inet_fill_ifmcaddr(skb, dev, im, event); + err = inet_fill_ifmcaddr(skb, dev, im, &fillargs); if (err < 0) { WARN_ON_ONCE(err == -EMSGSIZE); nlmsg_free(skb); -- 2.48.1.362.g079036d154-goog

3 months

2
5
0 0

[PATCH net-next v4 0/8] netconsole: Add support for CPU population

by Breno Leitao

The current implementation of netconsole sends all log messages in parallel, which can lead to an intermixed and interleaved output on the receiving side. This makes it challenging to demultiplex the messages and attribute them to their originating CPUs. As a result, users and developers often struggle to effectively analyze and debug the parallel log output received through netconsole. Example of a message got from produciton hosts: ------------[ cut here ]------------ ------------[ cut here ]------------ refcount_t: saturated; leaking memory. WARNING: CPU: 2 PID: 1613668 at lib/refcount.c:22 refcount_warn_saturate+0x5e/0xe0 refcount_t: addition on 0; use-after-free. WARNING: CPU: 26 PID: 4139916 at lib/refcount.c:25 refcount_warn_saturate+0x7d/0xe0 Modules linked in: bpf_preload(E) vhost_net(E) tun(E) vhost(E) This series of patches introduces a new feature to the netconsole subsystem that allows the automatic population of the CPU number in the userdata field for each log message. This enhancement provides several benefits: * Improved demultiplexing of parallel log output: When multiple CPUs are sending messages concurrently, the added CPU number in the userdata makes it easier to differentiate and attribute the messages to their originating CPUs. * Better visibility into message sources: The CPU number information gives users and developers more insight into which specific CPU a particular log message came from, which can be valuable for debugging and analysis. The changes in this series are as follows Patches:: Patch "consolidate send buffers into netconsole_target struct" ================================================= Move the static buffers to netconsole target, from static declaration in send_msg_no_fragmentation() and send_msg_fragmented(). Patch "netconsole: Rename userdata to extradata" ================================================= Create the a concept of extradata, which encompasses the concept of userdata and the upcoming sysdatao Sysdata is a new concept being added, which is basically fields that are populated by the kernel. At this time only the CPU#, but, there is a desire to add current task name, kernel release version, etc. Patch "netconsole: Helper to count number of used entries" =========================================================== Create a simple helper to count number of entries in extradata. I am separating this in a function since it will need to count userdata and sysdata. For instance, when the user adds an extra userdata, we need to check if there is space, counting the previous data entries (from userdata and cpu data) Patch "Introduce configfs helpers for sysdata features" ====================================================== Create the concept of sysdata feature in the netconsole target, and create the configfs helpers to enable the bit in nt->sysdata Patch "Include sysdata in extradata entry count" ================================================ Add the concept of sysdata when counting for available space in the buffer. This will protect users from creating new userdata/sysdata if there is no more space Patch "netconsole: add support for sysdata and CPU population" =============================================================== This is the core patch. Basically add a new option to enable automatic CPU number population in the netconsole userdata Provides a new "cpu_nr" sysfs attribute to control this feature Patch "netconsole: selftest: test CPU number auto-population" ============================================================= Expands the existing netconsole selftest to verify the CPU number auto-population functionality Ensures the received netconsole messages contain the expected "cpu=<CPU>" entry in the message. Test different permutation with userdata Patch "netconsole: docs: Add documentation for CPU number auto-population" ============================================================================= Updates the netconsole documentation to explain the new CPU number auto-population feature Provides instructions on how to enable and use the feature I believe these changes will be a valuable addition to the netconsole subsystem, enhancing its usefulness for kernel developers and users. PS: This patchset is on top of the patch that created netcons_fragmented_msg selftest: https://lore.kernel.org/all/20250203-netcons_frag_msgs-v1-1-5bc6bedf2ac0@de… Signed-off-by: Breno Leitao <leitao(a)debian.org> --- Changes in v4: - Fixed Kernel doc for netconsole_target (Simon) - Fixed a typo in disable_sysdata_feature (Simon) - Improved sysdata_cpu_nr_show() to return !! in a bit-wise operation - Link to v3: https://lore.kernel.org/r/20250124-netcon_cpu-v3-0-12a0d286ba1d@debian.org Changes in v3: - Moved the buffer into netconsole_target, avoiding static functions in the send path (Jakub). - Fix a documentation error (Randy Dunlap) - Created a function that handle all the extradata, consolidating it in a single place (Jakub) - Split the patch even more, trying to simplify the review. - Link to v2: https://lore.kernel.org/r/20250115-netcon_cpu-v2-0-95971b44dc56@debian.org Changes in v2: - Create the concept of extradata and sysdata. This will make the design easier to understand, and the code easier to read. * Basically extradata encompasses userdata and the new sysdata. Userdata originates from user, and sysdata originates in kernel. - Improved the test to send from a very specific CPU, which can be checked to be correct on the other side, as suggested by Jakub. - Fixed a bug where CPU # was populated at the wrong place - Link to v1: https://lore.kernel.org/r/20241113-netcon_cpu-v1-0-d187bf7c0321@debian.org --- Breno Leitao (8): netconsole: consolidate send buffers into netconsole_target struct netconsole: Rename userdata to extradata netconsole: Helper to count number of used entries netconsole: Introduce configfs helpers for sysdata features netconsole: Include sysdata in extradata entry count netconsole: add support for sysdata and CPU population netconsole: selftest: test for sysdata CPU netconsole: docs: Add documentation for CPU number auto-population Documentation/networking/netconsole.rst | 45 ++++ drivers/net/netconsole.c | 261 ++++++++++++++++----- tools/testing/selftests/drivers/net/Makefile | 1 + .../selftests/drivers/net/lib/sh/lib_netcons.sh | 17 ++ .../selftests/drivers/net/netcons_sysdata.sh | 167 +++++++++++++ 5 files changed, 427 insertions(+), 64 deletions(-) --- base-commit: 145702ca2544bf82c6b244a49163f603fbe746f4 change-id: 20241108-netcon_cpu-ce3917e88f4b Best regards, -- Breno Leitao <leitao(a)debian.org>

3 months

2
11
0 0

[PATCH v2 0/2] tools/nolibc: support for 32-bit s390

by Thomas Weißschuh

Support for 32-bit s390 is very easy to implement and useful for testing. For example I used to test some generic compat_ptr() logic, which is only testable on 32-bit s390. The series depends on my other series "selftests/nolibc: test kernel configuration cleanups". (It's not a hard dependency, only a minor diff conflict) Signed-off-by: Thomas Weißschuh <linux(a)weissschuh.net> --- Changes in v2: - Rebase unto nolibc-next - Use 96 bytes of stack frame size - Pick up Ack from Willy - Link to v1: https://lore.kernel.org/r/20250122-nolibc-s390-v1-0-8c765f00e871@weissschuh… --- Thomas Weißschuh (2): selftests/nolibc: rename s390 to s390x tools/nolibc: add support for 32-bit s390 tools/include/nolibc/arch-s390.h | 5 +++++ tools/include/nolibc/arch.h | 2 +- tools/testing/selftests/nolibc/Makefile | 10 ++++++++-- tools/testing/selftests/nolibc/run-tests.sh | 7 ++++++- 4 files changed, 20 insertions(+), 4 deletions(-) --- base-commit: c1f4a7a84037249d086a4114c0c4332a260e9091 change-id: 20250122-nolibc-s390-e57141682c88 Best regards, -- Thomas Weißschuh <linux(a)weissschuh.net>

3 months

1
2
0 0

[PATCH bpf-next v8 0/5] xsk: TX metadata Launch Time support

by Song Yoong Siang

This series expands the XDP TX metadata framework to allow user applications to pass per packet 64-bit launch time directly to the kernel driver, requesting launch time hardware offload support. The XDP TX metadata framework will not perform any clock conversion or packet reordering. Please note that the role of Tx metadata is just to pass the launch time, not to enable the offload feature. Users will need to enable the launch time hardware offload feature of the device by using the respective command, such as the tc-etf command. Although some devices use the tc-etf command to enable their launch time hardware offload feature, xsk packets will not go through the etf qdisc. Therefore, in my opinion, the launch time should always be based on the PTP Hardware Clock (PHC). Thus, i did not include a clock ID to indicate the clock source. To simplify the test steps, I modified the xdp_hw_metadata bpf self-test tool in such a way that it will set the launch time based on the offset provided by the user and the value of the Receive Hardware Timestamp, which is against the PHC. This will eliminate the need to discipline System Clock with the PHC and then use clock_gettime() to get the time. Please note that AF_XDP lacks a feedback mechanism to inform the application if the requested launch time is invalid. So, users are expected to familiar with the horizon of the launch time of the device they use and not request a launch time that is beyond the horizon. Otherwise, the driver might interpret the launch time incorrectly and react wrongly. For stmmac and igc, where modulo computation is used, a launch time larger than the horizon will cause the device to transmit the packet earlier that the requested launch time. Although there is no feedback mechanism for the launch time request for now, user still can check whether the requested launch time is working or not, by requesting the Transmit Completion Hardware Timestamp. V8: - check the number of used descriptor in xsk_tx_metadata_request() by using used_desc of struct igc_metadata_request, and then decreases the budget with it (Maciej) V7: https://lore.kernel.org/netdev/20250204004907.789330-1-yoong.siang.song@int… - split the refactoring code of igc empty packet insertion into a separate commit (Faizal) - add explanation on why the value "4" is used as igc transmit budget (Faizal) - perform a stress test by sending 1000 packets with 10ms interval and launch time set to 500us in the future (Faizal & Yong Liang) V6: https://lore.kernel.org/netdev/20250116155350.555374-1-yoong.siang.song@int… - fix selftest build errors by using asprintf() and realloc(), instead of managing the buffer sizes manually (Daniel, Stanislav) V5: https://lore.kernel.org/netdev/20250114152718.120588-1-yoong.siang.song@int… - change netdev feature name from tx-launch-time to tx-launch-time-fifo to explicitly state the FIFO behaviour (Stanislav) - improve the looping of xdp_hw_metadata app to wait for packet tx completion to be more readable by using clock_gettime() (Stanislav) - add launch time setup steps into xdp_hw_metadata app (Stanislav) V4: https://lore.kernel.org/netdev/20250106135506.9687-1-yoong.siang.song@intel… - added XDP launch time support to the igc driver (Jesper & Florian) - added per-driver launch time limitation on xsk-tx-metadata.rst (Jesper) - added explanation on FIFO behavior on xsk-tx-metadata.rst (Jakub) - added step to enable launch time in the commit message (Jesper & Willem) - explicitly documented the type of launch_time and which clock source it is against (Willem) V3: https://lore.kernel.org/netdev/20231203165129.1740512-1-yoong.siang.song@in… - renamed to use launch time (Jesper & Willem) - changed the default launch time in xdp_hw_metadata apps from 1s to 0.1s because some NICs do not support such a large future time. V2: https://lore.kernel.org/netdev/20231201062421.1074768-1-yoong.siang.song@in… - renamed to use Earliest TxTime First (Willem) - renamed to use txtime (Willem) V1: https://lore.kernel.org/netdev/20231130162028.852006-1-yoong.siang.song@int… Song Yoong Siang (5): xsk: Add launch time hardware offload support to XDP Tx metadata selftests/bpf: Add launch time request to xdp_hw_metadata net: stmmac: Add launch time support to XDP ZC igc: Refactor empty packet insertion into a reusable function igc: Add launch time support to XDP ZC Documentation/netlink/specs/netdev.yaml | 4 + Documentation/networking/xsk-tx-metadata.rst | 62 +++++++ drivers/net/ethernet/intel/igc/igc.h | 1 + drivers/net/ethernet/intel/igc/igc_main.c | 94 +++++++--- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 + .../net/ethernet/stmicro/stmmac/stmmac_main.c | 13 ++ include/net/xdp_sock.h | 10 ++ include/net/xdp_sock_drv.h | 1 + include/uapi/linux/if_xdp.h | 10 ++ include/uapi/linux/netdev.h | 3 + net/core/netdev-genl.c | 2 + net/xdp/xsk.c | 3 + tools/include/uapi/linux/if_xdp.h | 10 ++ tools/include/uapi/linux/netdev.h | 3 + tools/testing/selftests/bpf/xdp_hw_metadata.c | 168 +++++++++++++++++- 15 files changed, 359 insertions(+), 27 deletions(-) -- 2.34.1

3 months

3
9
0 0

[PATCH net-next] selftests: net: suppress ReST file generation when building selftests

by Jakub Kicinski

Some selftests need libynl.a. When building it try to skip generating the ReST documentation, libynl.a does not depend on them. Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> --- CC: donald.hunter(a)gmail.com CC: shuah(a)kernel.org CC: linux-kselftest(a)vger.kernel.org --- tools/testing/selftests/net/ynl.mk | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/ynl.mk b/tools/testing/selftests/net/ynl.mk index 12e7cae251be..e907c2751956 100644 --- a/tools/testing/selftests/net/ynl.mk +++ b/tools/testing/selftests/net/ynl.mk @@ -27,7 +27,8 @@ YNL_GENS_HASH := $(shell echo $(YNL_GENS) | sha1sum | cut -c1-8) $(OUTPUT)/libynl.a: $(YNL_SPECS) $(OUTPUT)/.libynl-$(YNL_GENS_HASH).sig $(Q)rm -f $(top_srcdir)/tools/net/ynl/libynl.a - $(Q)$(MAKE) -C $(top_srcdir)/tools/net/ynl GENS="$(YNL_GENS)" libynl.a + $(Q)$(MAKE) -C $(top_srcdir)/tools/net/ynl \ + GENS="$(YNL_GENS)" RSTS="" libynl.a $(Q)cp $(top_srcdir)/tools/net/ynl/libynl.a $(OUTPUT)/libynl.a EXTRA_CLEAN += \ -- 2.48.1

3 months

3
2
0 0

[PATCH net] selftests: mptcp: connect: -f: no reconnect

by Matthieu Baerts (NGI0)

The '-f' parameter is there to force the kernel to emit MPTCP FASTCLOSE by closing the connection with unread bytes in the receive queue. The xdisconnect() helper was used to stop the connection, but it does more than that: it will shut it down, then wait before reconnecting to the same address. This causes the mptcp_join's "fastclose test" to fail all the time. This failure is due to a recent change, with commit 218cc166321f ("selftests: mptcp: avoid spurious errors on disconnect"), but that went unnoticed because the test is currently ignored. The recent modification only shown an existing issue: xdisconnect() doesn't need to be used here, only the shutdown() part is needed. Fixes: 6bf41020b72b ("selftests: mptcp: update and extend fastclose test-cases") Cc: stable(a)vger.kernel.org Reviewed-by: Mat Martineau <martineau(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> --- Notes: - The failure was not clearly visible on NIPA, because the results for the two impacted sub-tests are currently ignored (unstable). Still, it looks important to fix that, as this will help when the tests will be improved not to be unstable any more. --- tools/testing/selftests/net/mptcp/mptcp_connect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c index 414addef9a4514c489ecd09249143fe0ce2af649..d240d02fa443a1cd802f0e705ab36db5c22063a8 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_connect.c +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c @@ -1302,7 +1302,7 @@ int main_loop(void) return ret; if (cfg_truncate > 0) { - xdisconnect(fd); + shutdown(fd, SHUT_WR); } else if (--cfg_repeat > 0) { xdisconnect(fd); --- base-commit: 4241a702e0d0c2ca9364cfac08dbf134264962de change-id: 20250204-net-mptcp-sft-conn-f-d1c14274ba66 Best regards, -- Matthieu Baerts (NGI0) <matttbe(a)kernel.org>

3 months

2
1
0 0

[PATCH] selftests/dma: Fix bad array reference.

by Liu Ye

dir[directions] should be directions[dir] to correctly index the directions array. Signed-off-by: Liu Ye <liuye(a)kylinos.cn> --- tools/testing/selftests/dma/dma_map_benchmark.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/dma/dma_map_benchmark.c b/tools/testing/selftests/dma/dma_map_benchmark.c index b12f1f9babf8..b925756373ce 100644 --- a/tools/testing/selftests/dma/dma_map_benchmark.c +++ b/tools/testing/selftests/dma/dma_map_benchmark.c @@ -118,7 +118,7 @@ int main(int argc, char **argv) } printf("dma mapping benchmark: threads:%d seconds:%d node:%d dir:%s granule: %d\n", - threads, seconds, node, dir[directions], granule); + threads, seconds, node, directions[dir], granule); printf("average map latency(us):%.1f standard deviation:%.1f\n", map.avg_map_100ns/10.0, map.map_stddev/10.0); printf("average unmap latency(us):%.1f standard deviation:%.1f\n", -- 2.25.1

3 months

1
0
0 0

[PATCH] selftests: bpf: Support dynamic linking LLVM if static not available

by Daniel Xu

Since 67ab80a01886 ("selftests/bpf: Prefer static linking for LLVM libraries"), only statically linking test_progs is supported. However, some distros only provide a dynamically linkable LLVM. This commit adds a fallback for dynamically linking LLVM if static linking is not available. If both options are available, static linking is chosen. Signed-off-by: Daniel Xu <dxu(a)dxuuu.xyz> --- tools/testing/selftests/bpf/Makefile | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 6722080b2107..da514030a153 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -184,9 +184,14 @@ ifeq ($(feature-llvm),1) LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags)) - LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) - LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS)) - LLVM_LDLIBS += -lstdc++ + # Prefer linking statically if it's available, otherwise fallback to shared + ifeq ($(shell $(LLVM_CONFIG) --link-static --libs &> /dev/null && echo static),static) + LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS)) + LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS)) + LLVM_LDLIBS += -lstdc++ + else + LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-shared --libs $(LLVM_CONFIG_LIB_COMPONENTS)) + endif LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags) endif -- 2.47.1

3 months

5
7
0 0

[PATCH] selftests: pidfd: Fix compiling errors and warning

by I Hsin Cheng

When compiling selftests files under tools/testing/selftests/pidfd/ , some compiling errors and warnings will pop out as the following. CC pidfd_fdinfo_test pidfd_fdinfo_test.c: In function ‘child_fdinfo_nspid_test’: pidfd_fdinfo_test.c:231:13: warning: implicit declaration of function \ ‘mount’ [-Wimplicit-function-declaration] 231 | r = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0); | ^~~~~ pidfd_fdinfo_test.c:231:36: error: ‘MS_REC’ undeclared \ (first use in this function) 231 | r = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0); | ^~~~~~ pidfd_fdinfo_test.c:231:36: note: each undeclared identifier is \ reported only once for each function it appears in pidfd_fdinfo_test.c:231:45: error: ‘MS_PRIVATE’ undeclared \ (first use in this function); did you mean ‘MAP_PRIVATE’? 231 | r = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0); | ^~~~~~~~~~ | MAP_PRIVATE pidfd_fdinfo_test.c:237:15: warning: implicit declaration of function \ ‘umount2’; did you mean ‘SYS_umount2’? \ [-Wimplicit-function-declaration] 237 | (void)umount2("/proc", MNT_DETACH); | ^~~~~~~ | SYS_umount2 pidfd_fdinfo_test.c:237:32: error: ‘MNT_DETACH’ undeclared \ (first use in this function) 237 | (void)umount2("/proc", MNT_DETACH); | ^~~~~~~~~~ make: *** [../lib.mk:222: \ ~/linux/tools/testing/selftests/pidfd/pidfd_fdinfo_test] Error 1 Solve these errors and warnings by including header file <sys/mount.h>. Signed-off-by: I Hsin Cheng <richard120310(a)gmail.com> --- tools/testing/selftests/pidfd/pidfd_fdinfo_test.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c index f062a986e..f718aac75 100644 --- a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c +++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c @@ -13,6 +13,7 @@ #include <syscall.h> #include <sys/wait.h> #include <sys/mman.h> +#include <sys/mount.h> #include "pidfd.h" #include "../kselftest.h" -- 2.43.0

3 months

2
2
0 0

[PATCH 6.13 580/623] selftests/rseq: Fix handling of glibc without rseq support

by Greg Kroah-Hartman

6.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> commit 336d02bc4c6bec5c3d933e5d470a94970f830957 upstream. When porting librseq commit: commit c7b45750fa85 ("Adapt to glibc __rseq_size feature detection") from librseq to the kernel selftests, the following line was missed at the end of rseq_init(): rseq_size = get_rseq_kernel_feature_size(); which effectively leaves rseq_size initialized to -1U when glibc does not have rseq support. glibc supports rseq from version 2.35 onwards. In a following librseq commit commit c67d198627c2 ("Only set 'rseq_size' on first thread registration") to mimic the libc behavior, a new approach is taken: don't set the feature size in 'rseq_size' until at least one thread has successfully registered. This allows using 'rseq_size' in fast-paths to test for both registration status and available features. The caveat is that on libc either all threads are registered or none are, while with bare librseq it is the responsability of the user to register all threads using rseq. This combines the changes from the following librseq git commits: commit c7b45750fa85 ("Adapt to glibc __rseq_size feature detection") commit c67d198627c2 ("Only set 'rseq_size' on first thread registration") Fixes: a0cc649353bb ("selftests/rseq: Fix mm_cid test failure") Reported-by: Raghavendra Rao Ananta <rananta(a)google.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Cc: Raghavendra Rao Ananta <rananta(a)google.com> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Boqun Feng <boqun.feng(a)gmail.com> Cc: "Paul E. McKenney" <paulmck(a)kernel.org> Cc: Carlos O'Donell <carlos(a)redhat.com> Cc: Florian Weimer <fweimer(a)redhat.com> Cc: Michael Jeanson <mjeanson(a)efficios.com> Cc: linux-kselftest(a)vger.kernel.org Cc: stable(a)vger.kernel.org Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/testing/selftests/rseq/rseq.c | 32 +++++++++++++++++++++++++------- tools/testing/selftests/rseq/rseq.h | 9 ++++++++- 2 files changed, 33 insertions(+), 8 deletions(-) --- a/tools/testing/selftests/rseq/rseq.c +++ b/tools/testing/selftests/rseq/rseq.c @@ -61,7 +61,6 @@ unsigned int rseq_size = -1U; unsigned int rseq_flags; static int rseq_ownership; -static int rseq_reg_success; /* At least one rseq registration has succeded. */ /* Allocate a large area for the TLS. */ #define RSEQ_THREAD_AREA_ALLOC_SIZE 1024 @@ -152,14 +151,27 @@ int rseq_register_current_thread(void) } rc = sys_rseq(&__rseq_abi, get_rseq_min_alloc_size(), 0, RSEQ_SIG); if (rc) { - if (RSEQ_READ_ONCE(rseq_reg_success)) { + /* + * After at least one thread has registered successfully + * (rseq_size > 0), the registration of other threads should + * never fail. + */ + if (RSEQ_READ_ONCE(rseq_size) > 0) { /* Incoherent success/failure within process. */ abort(); } return -1; } assert(rseq_current_cpu_raw() >= 0); - RSEQ_WRITE_ONCE(rseq_reg_success, 1); + + /* + * The first thread to register sets the rseq_size to mimic the libc + * behavior. + */ + if (RSEQ_READ_ONCE(rseq_size) == 0) { + RSEQ_WRITE_ONCE(rseq_size, get_rseq_kernel_feature_size()); + } + return 0; } @@ -235,12 +247,18 @@ void rseq_init(void) return; } rseq_ownership = 1; - if (!rseq_available()) { - rseq_size = 0; - return; - } + + /* Calculate the offset of the rseq area from the thread pointer. */ rseq_offset = (void *)&__rseq_abi - rseq_thread_pointer(); + + /* rseq flags are deprecated, always set to 0. */ rseq_flags = 0; + + /* + * Set the size to 0 until at least one thread registers to mimic the + * libc behavior. + */ + rseq_size = 0; } static __attribute__((destructor)) --- a/tools/testing/selftests/rseq/rseq.h +++ b/tools/testing/selftests/rseq/rseq.h @@ -60,7 +60,14 @@ extern ptrdiff_t rseq_offset; /* - * Size of the registered rseq area. 0 if the registration was + * The rseq ABI is composed of extensible feature fields. The extensions + * are done by appending additional fields at the end of the structure. + * The rseq_size defines the size of the active feature set which can be + * used by the application for the current rseq registration. Features + * starting at offset >= rseq_size are inactive and should not be used. + * + * The rseq_size is the intersection between the available allocation + * size for the rseq area and the feature size supported by the kernel. * unsuccessful. */ extern unsigned int rseq_size;

3 months

1
0
0 0

[PATCH 6.12 546/590] selftests/rseq: Fix handling of glibc without rseq support

by Greg Kroah-Hartman

6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> commit 336d02bc4c6bec5c3d933e5d470a94970f830957 upstream. When porting librseq commit: commit c7b45750fa85 ("Adapt to glibc __rseq_size feature detection") from librseq to the kernel selftests, the following line was missed at the end of rseq_init(): rseq_size = get_rseq_kernel_feature_size(); which effectively leaves rseq_size initialized to -1U when glibc does not have rseq support. glibc supports rseq from version 2.35 onwards. In a following librseq commit commit c67d198627c2 ("Only set 'rseq_size' on first thread registration") to mimic the libc behavior, a new approach is taken: don't set the feature size in 'rseq_size' until at least one thread has successfully registered. This allows using 'rseq_size' in fast-paths to test for both registration status and available features. The caveat is that on libc either all threads are registered or none are, while with bare librseq it is the responsability of the user to register all threads using rseq. This combines the changes from the following librseq git commits: commit c7b45750fa85 ("Adapt to glibc __rseq_size feature detection") commit c67d198627c2 ("Only set 'rseq_size' on first thread registration") Fixes: a0cc649353bb ("selftests/rseq: Fix mm_cid test failure") Reported-by: Raghavendra Rao Ananta <rananta(a)google.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Cc: Raghavendra Rao Ananta <rananta(a)google.com> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Boqun Feng <boqun.feng(a)gmail.com> Cc: "Paul E. McKenney" <paulmck(a)kernel.org> Cc: Carlos O'Donell <carlos(a)redhat.com> Cc: Florian Weimer <fweimer(a)redhat.com> Cc: Michael Jeanson <mjeanson(a)efficios.com> Cc: linux-kselftest(a)vger.kernel.org Cc: stable(a)vger.kernel.org Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/testing/selftests/rseq/rseq.c | 32 +++++++++++++++++++++++++------- tools/testing/selftests/rseq/rseq.h | 9 ++++++++- 2 files changed, 33 insertions(+), 8 deletions(-) --- a/tools/testing/selftests/rseq/rseq.c +++ b/tools/testing/selftests/rseq/rseq.c @@ -61,7 +61,6 @@ unsigned int rseq_size = -1U; unsigned int rseq_flags; static int rseq_ownership; -static int rseq_reg_success; /* At least one rseq registration has succeded. */ /* Allocate a large area for the TLS. */ #define RSEQ_THREAD_AREA_ALLOC_SIZE 1024 @@ -152,14 +151,27 @@ int rseq_register_current_thread(void) } rc = sys_rseq(&__rseq_abi, get_rseq_min_alloc_size(), 0, RSEQ_SIG); if (rc) { - if (RSEQ_READ_ONCE(rseq_reg_success)) { + /* + * After at least one thread has registered successfully + * (rseq_size > 0), the registration of other threads should + * never fail. + */ + if (RSEQ_READ_ONCE(rseq_size) > 0) { /* Incoherent success/failure within process. */ abort(); } return -1; } assert(rseq_current_cpu_raw() >= 0); - RSEQ_WRITE_ONCE(rseq_reg_success, 1); + + /* + * The first thread to register sets the rseq_size to mimic the libc + * behavior. + */ + if (RSEQ_READ_ONCE(rseq_size) == 0) { + RSEQ_WRITE_ONCE(rseq_size, get_rseq_kernel_feature_size()); + } + return 0; } @@ -235,12 +247,18 @@ void rseq_init(void) return; } rseq_ownership = 1; - if (!rseq_available()) { - rseq_size = 0; - return; - } + + /* Calculate the offset of the rseq area from the thread pointer. */ rseq_offset = (void *)&__rseq_abi - rseq_thread_pointer(); + + /* rseq flags are deprecated, always set to 0. */ rseq_flags = 0; + + /* + * Set the size to 0 until at least one thread registers to mimic the + * libc behavior. + */ + rseq_size = 0; } static __attribute__((destructor)) --- a/tools/testing/selftests/rseq/rseq.h +++ b/tools/testing/selftests/rseq/rseq.h @@ -60,7 +60,14 @@ extern ptrdiff_t rseq_offset; /* - * Size of the registered rseq area. 0 if the registration was + * The rseq ABI is composed of extensible feature fields. The extensions + * are done by appending additional fields at the end of the structure. + * The rseq_size defines the size of the active feature set which can be + * used by the application for the current rseq registration. Features + * starting at offset >= rseq_size are inactive and should not be used. + * + * The rseq_size is the intersection between the available allocation + * size for the rseq area and the feature size supported by the kernel. * unsuccessful. */ extern unsigned int rseq_size;

3 months

1
0
0 0

[PATCH 6.6 372/393] selftests/rseq: Fix handling of glibc without rseq support

by Greg Kroah-Hartman

6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> commit 336d02bc4c6bec5c3d933e5d470a94970f830957 upstream. When porting librseq commit: commit c7b45750fa85 ("Adapt to glibc __rseq_size feature detection") from librseq to the kernel selftests, the following line was missed at the end of rseq_init(): rseq_size = get_rseq_kernel_feature_size(); which effectively leaves rseq_size initialized to -1U when glibc does not have rseq support. glibc supports rseq from version 2.35 onwards. In a following librseq commit commit c67d198627c2 ("Only set 'rseq_size' on first thread registration") to mimic the libc behavior, a new approach is taken: don't set the feature size in 'rseq_size' until at least one thread has successfully registered. This allows using 'rseq_size' in fast-paths to test for both registration status and available features. The caveat is that on libc either all threads are registered or none are, while with bare librseq it is the responsability of the user to register all threads using rseq. This combines the changes from the following librseq git commits: commit c7b45750fa85 ("Adapt to glibc __rseq_size feature detection") commit c67d198627c2 ("Only set 'rseq_size' on first thread registration") Fixes: a0cc649353bb ("selftests/rseq: Fix mm_cid test failure") Reported-by: Raghavendra Rao Ananta <rananta(a)google.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Cc: Raghavendra Rao Ananta <rananta(a)google.com> Cc: Shuah Khan <skhan(a)linuxfoundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Boqun Feng <boqun.feng(a)gmail.com> Cc: "Paul E. McKenney" <paulmck(a)kernel.org> Cc: Carlos O'Donell <carlos(a)redhat.com> Cc: Florian Weimer <fweimer(a)redhat.com> Cc: Michael Jeanson <mjeanson(a)efficios.com> Cc: linux-kselftest(a)vger.kernel.org Cc: stable(a)vger.kernel.org Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/testing/selftests/rseq/rseq.c | 32 ++++++++++++++++++++++------- tools/testing/selftests/rseq/rseq.h | 9 +++++++- 2 files changed, 33 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/rseq/rseq.c b/tools/testing/selftests/rseq/rseq.c index 5b9772cdf265..f6156790c3b4 100644 --- a/tools/testing/selftests/rseq/rseq.c +++ b/tools/testing/selftests/rseq/rseq.c @@ -61,7 +61,6 @@ unsigned int rseq_size = -1U; unsigned int rseq_flags; static int rseq_ownership; -static int rseq_reg_success; /* At least one rseq registration has succeded. */ /* Allocate a large area for the TLS. */ #define RSEQ_THREAD_AREA_ALLOC_SIZE 1024 @@ -152,14 +151,27 @@ int rseq_register_current_thread(void) } rc = sys_rseq(&__rseq_abi, get_rseq_min_alloc_size(), 0, RSEQ_SIG); if (rc) { - if (RSEQ_READ_ONCE(rseq_reg_success)) { + /* + * After at least one thread has registered successfully + * (rseq_size > 0), the registration of other threads should + * never fail. + */ + if (RSEQ_READ_ONCE(rseq_size) > 0) { /* Incoherent success/failure within process. */ abort(); } return -1; } assert(rseq_current_cpu_raw() >= 0); - RSEQ_WRITE_ONCE(rseq_reg_success, 1); + + /* + * The first thread to register sets the rseq_size to mimic the libc + * behavior. + */ + if (RSEQ_READ_ONCE(rseq_size) == 0) { + RSEQ_WRITE_ONCE(rseq_size, get_rseq_kernel_feature_size()); + } + return 0; } @@ -235,12 +247,18 @@ void rseq_init(void) return; } rseq_ownership = 1; - if (!rseq_available()) { - rseq_size = 0; - return; - } + + /* Calculate the offset of the rseq area from the thread pointer. */ rseq_offset = (void *)&__rseq_abi - rseq_thread_pointer(); + + /* rseq flags are deprecated, always set to 0. */ rseq_flags = 0; + + /* + * Set the size to 0 until at least one thread registers to mimic the + * libc behavior. + */ + rseq_size = 0; } static __attribute__((destructor)) diff --git a/tools/testing/selftests/rseq/rseq.h b/tools/testing/selftests/rseq/rseq.h index 4e217b620e0c..062d10925a10 100644 --- a/tools/testing/selftests/rseq/rseq.h +++ b/tools/testing/selftests/rseq/rseq.h @@ -60,7 +60,14 @@ extern ptrdiff_t rseq_offset; /* - * Size of the registered rseq area. 0 if the registration was + * The rseq ABI is composed of extensible feature fields. The extensions + * are done by appending additional fields at the end of the structure. + * The rseq_size defines the size of the active feature set which can be + * used by the application for the current rseq registration. Features + * starting at offset >= rseq_size are inactive and should not be used. + * + * The rseq_size is the intersection between the available allocation + * size for the rseq area and the feature size supported by the kernel. * unsuccessful. */ extern unsigned int rseq_size; -- 2.48.1

3 months

1
0
0 0

[PATCH net-next v3 00/10] Some pktgen fixes/improvments

by Peter Seiderer

While taking a look at '[PATCH net] pktgen: Avoid out-of-range in get_imix_entries' ([1]) and '[PATCH net v2] pktgen: Avoid out-of-bounds access in get_imix_entries' ([2], [3]) and doing some tests and code review I detected that the /proc/net/pktgen/... parsing logic does not honour the user given buffer bounds (resulting in out-of-bounds access). This can be observed e.g. by the following simple test (sometimes the old/'longer' previous value is re-read from the buffer): $ echo add_device lo@0 > /proc/net/pktgen/kpktgend_0 $ echo "min_pkt_size 12345" > /proc/net/pktgen/lo\@0 && grep min_pkt_size /proc/net/pktgen/lo\@0 Params: count 1000 min_pkt_size: 12345 max_pkt_size: 0 Result: OK: min_pkt_size=12345 $ echo -n "min_pkt_size 123" > /proc/net/pktgen/lo\@0 && grep min_pkt_size /proc/net/pktgen/lo\@0 Params: count 1000 min_pkt_size: 12345 max_pkt_size: 0 Result: OK: min_pkt_size=12345 $ echo "min_pkt_size 123" > /proc/net/pktgen/lo\@0 && grep min_pkt_size /proc/net/pktgen/lo\@0 Params: count 1000 min_pkt_size: 123 max_pkt_size: 0 Result: OK: min_pkt_size=123 So fix the out-of-bounds access (and some minor findings) and add a simple proc_net_pktgen selftest... Regards, Peter Changes v2 -> v3: - new patch: 'net: pktgen: fix ctrl interface command parsing' - new patch: 'net: pktgen: fix mpls reset parsing' - tools/testing/selftests/net/proc_net_pktgen.c: - fix typo in change description ('v1 -> v1' and tyop) - rename some vars to better match usage add_loopback_0 -> thr_cmd_add_loopback_0 rm_loopback_0 -> thr_cmd_rm_loopback_0 wrong_ctrl_cmd -> wrong_thr_cmd legacy_ctrl_cmd -> legacy_thr_cmd ctrl_fd -> thr_fd - add ctrl interface tests Changes v1 -> v2: - new patch: 'net: pktgen: fix hex32_arg parsing for short reads' - new patch: 'net: pktgen: fix 'rate 0' error handling (return -EINVAL)' - new patch: 'net: pktgen: fix 'ratep 0' error handling (return -EINVAL)' - net/core/pktgen.c: additional fix get_imix_entries() and get_labels() - tools/testing/selftests/net/proc_net_pktgen.c: - fix tyop not vs. nod (suggested by Jakub Kicinski) - fix misaligned line (suggested by Jakub Kicinski) - enable fomerly commented out CONFIG_XFRM dependent test (command spi), as CONFIG_XFRM is enabled via tools/testing/selftests/net/config CONFIG_XFRM_INTERFACE/CONFIG_XFRM_USER (suggestex by Jakub Kicinski) - add CONFIG_NET_PKTGEN=m to tools/testing/selftests/net/config (suggested by Jakub Kicinski) - add modprobe pktgen to FIXTURE_SETUP() (suggested by Jakub Kicinski) - fix some checkpatch warnings (Missing a blank line after declarations) - shrink line length by re-naming some variables (command -> cmd, device -> dev) - add 'rate 0' testcase - add 'ratep 0' testcase [1] https://lore.kernel.org/netdev/20241006221221.3744995-1-artem.chernyshev@re… [2] https://lore.kernel.org/netdev/20250109083039.14004-1-pchelkin@ispras.ru/ [3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… Peter Seiderer (10): net: pktgen: replace ENOTSUPP with EOPNOTSUPP net: pktgen: enable 'param=value' parsing net: pktgen: fix hex32_arg parsing for short reads net: pktgen: fix 'rate 0' error handling (return -EINVAL) net: pktgen: fix 'ratep 0' error handling (return -EINVAL) net: pktgen: fix ctrl interface command parsing net: pktgen: fix access outside of user given buffer in pktgen_thread_write() net: pktgen: fix access outside of user given buffer in pktgen_if_write() net: pktgen: fix mpls reset parsing selftest: net: add proc_net_pktgen net/core/pktgen.c | 257 ++++--- tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/config | 1 + tools/testing/selftests/net/proc_net_pktgen.c | 650 ++++++++++++++++++ 4 files changed, 819 insertions(+), 90 deletions(-) create mode 100644 tools/testing/selftests/net/proc_net_pktgen.c -- 2.48.1

3 months

3
23
0 0

[PATCH] selftests/mm: Fix thuge-gen test name uniqueness

by Mark Brown

The thuge-gen test_mmap() and test_shmget() tests are repeatedly run for a variety of sizes but always report the result of their test with the same name, meaning that automated sysetms running the tests are unable to distinguish between the various tests. Add the supplied sizes to the logged test names to distinguish between runs. Fixes: b38bd9b2c448 ("selftests/mm: thuge-gen: conform to TAP format output") Signed-off-by: Mark Brown <broonie(a)kernel.org> --- tools/testing/selftests/mm/thuge-gen.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/mm/thuge-gen.c b/tools/testing/selftests/mm/thuge-gen.c index e4370b79b62ffb133056eb843cdd1eaeba6503df..cd5174d735be405220d99ae796a3768f53df6ea4 100644 --- a/tools/testing/selftests/mm/thuge-gen.c +++ b/tools/testing/selftests/mm/thuge-gen.c @@ -127,7 +127,7 @@ void test_mmap(unsigned long size, unsigned flags) show(size); ksft_test_result(size == getpagesize() || (before - after) == NUM_PAGES, - "%s mmap\n", __func__); + "%s mmap %lu\n", __func__, size); if (munmap(map, size * NUM_PAGES)) ksft_exit_fail_msg("%s: unmap %s\n", __func__, strerror(errno)); @@ -165,7 +165,7 @@ void test_shmget(unsigned long size, unsigned flags) show(size); ksft_test_result(size == getpagesize() || (before - after) == NUM_PAGES, - "%s: mmap\n", __func__); + "%s: mmap %lu\n", __func__, size); if (shmdt(map)) ksft_exit_fail_msg("%s: shmdt: %s\n", __func__, strerror(errno)); } --- base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b change-id: 20250204-kselftest-mm-fix-dups-076a48577184 Best regards, -- Mark Brown <broonie(a)kernel.org>

3 months

3
3
0 0

[PATCH] selftests: pidfd: Fix compiling warning of pidfs_setns

by I Hsin Cheng

In the compilation of pidfs_setns_test.c , a warning as the following will pop out. pidfd_setns_test.c: In function ‘current_nsset_setup’: pidfd_setns_test.c:173:54: warning: implicit declaration of function \ ‘ioctl’ [-Wimplicit-function-declaration] 173 | self->child_pidfd_derived_nsfds[i] = \ ioctl(self->pidfd, info->pidfd_ioctl, 0); It's caused by wrong import of header file <linux/ioctl.h>, fix it to <sys/ioctl.h>. Signed-off-by: I Hsin Cheng <richard120310(a)gmail.com> --- tools/testing/selftests/pidfd/pidfd_setns_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/pidfd/pidfd_setns_test.c b/tools/testing/selftests/pidfd/pidfd_setns_test.c index 7c2a43491..3ed42f1eb 100644 --- a/tools/testing/selftests/pidfd/pidfd_setns_test.c +++ b/tools/testing/selftests/pidfd/pidfd_setns_test.c @@ -16,7 +16,7 @@ #include <unistd.h> #include <sys/socket.h> #include <sys/stat.h> -#include <linux/ioctl.h> +#include <sys/ioctl.h> #include "pidfd.h" #include "../clone3/clone3_selftests.h" -- 2.43.0

3 months

2
1
0 0

[PATCH net 0/2] bonding: fix incorrect mac address setting

by Hangbin Liu

The mac address on backup slave should be convert from Solicited-Node Multicast address, not from bonding unicast target address. Hangbin Liu (2): bonding: fix incorrect MAC address setting to receive NA messages selftests: bonding: fix incorrect mac address drivers/net/bonding/bond_options.c | 4 +++- tools/testing/selftests/drivers/net/bonding/bond_options.sh | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) -- 2.39.5 (Apple Git-154)

3 months

1
3
0 0

[PATCH 0/2] tools/nolibc: support for 32-bit s390

by Thomas Weißschuh

Support for 32-bit s390 is very easy to implement and useful for testing. For example I used to test some generic compat_ptr() logic, which is only testable on 32-bit s390. The series depends on my other series "selftests/nolibc: test kernel configuration cleanups". (It's not a hard dependency, only a minor diff conflict) Signed-off-by: Thomas Weißschuh <linux(a)weissschuh.net> --- Thomas Weißschuh (2): selftests/nolibc: rename s390 to s390x tools/nolibc: add support for 32-bit s390 tools/include/nolibc/arch-s390.h | 5 +++++ tools/include/nolibc/arch.h | 2 +- tools/testing/selftests/nolibc/Makefile | 10 ++++++++-- tools/testing/selftests/nolibc/run-tests.sh | 8 +++++++- 4 files changed, 21 insertions(+), 4 deletions(-) --- base-commit: 0597614d84c8593ba906418bf3c0c0de1e02e82a change-id: 20250122-nolibc-s390-e57141682c88 Best regards, -- Thomas Weißschuh <linux(a)weissschuh.net>

3 months

3
4
0 0

[PATCH net-next] netconsole: selftest: Add test for fragmented messages

by Breno Leitao

Add a new selftest to verify netconsole's handling of messages that exceed the packet size limit and require fragmentation. The test sends messages with varying sizes and userdata, validating that: 1. Large messages are correctly fragmented and reassembled 2. Userdata fields are properly preserved across fragments 3. Messages work correctly with and without kernel release version appending The test creates a networking environment using netdevsim, sends messages through /dev/kmsg, and verifies the received fragments maintain message integrity. Signed-off-by: Breno Leitao <leitao(a)debian.org> Reviewed-by: Simon Horman <horms(a)kernel.org> --- Changes compared to RFC - Removed the long-line comment (Simon) - Added Simon's reviwed-by tag. - Link to v1: https://lore.kernel.org/r/20250131-netcons_frag_msgs-v1-1-0de83bf2a7e6@debi… --- tools/testing/selftests/drivers/net/Makefile | 1 + .../selftests/drivers/net/lib/sh/lib_netcons.sh | 7 ++ .../drivers/net/netcons_fragmented_msg.sh | 122 +++++++++++++++++++++ 3 files changed, 130 insertions(+) diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile index 137470bdee0c7fd2517bd1baafc12d575de4b4ac..c7f1c443f2af091aa13f67dd1df9ae05d7a43f40 100644 --- a/tools/testing/selftests/drivers/net/Makefile +++ b/tools/testing/selftests/drivers/net/Makefile @@ -7,6 +7,7 @@ TEST_INCLUDES := $(wildcard lib/py/*.py) \ TEST_PROGS := \ netcons_basic.sh \ + netcons_fragmented_msg.sh \ netcons_overflow.sh \ ping.py \ queues.py \ diff --git a/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh b/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh index 3acaba41ac7b21aa2fd8457ed640a5ac8a41bc12..0c262b123fdd3082c40b2bd899ec626d223226ed 100644 --- a/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh +++ b/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh @@ -110,6 +110,13 @@ function create_dynamic_target() { echo 1 > "${NETCONS_PATH}"/enabled } +# Do not append the release to the header of the message +function disable_release_append() { + echo 0 > "${NETCONS_PATH}"/enabled + echo 0 > "${NETCONS_PATH}"/release + echo 1 > "${NETCONS_PATH}"/enabled +} + function cleanup() { local NSIM_DEV_SYS_DEL="/sys/bus/netdevsim/del_device" diff --git a/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh b/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh new file mode 100755 index 0000000000000000000000000000000000000000..4a71e01a230c75c14147a9937920fe0b68a0926a --- /dev/null +++ b/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh @@ -0,0 +1,122 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: GPL-2.0 + +# Test netconsole's message fragmentation functionality. +# +# When a message exceeds the maximum packet size, netconsole splits it into +# multiple fragments for transmission. This test verifies: +# - Correct fragmentation of large messages +# - Proper reassembly of fragments at the receiver +# - Preservation of userdata across fragments +# - Behavior with and without kernel release version appending +# +# Author: Breno Leitao <leitao(a)debian.org> + +set -euo pipefail + +SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")") + +source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh + +modprobe netdevsim 2> /dev/null || true +modprobe netconsole 2> /dev/null || true + +# The content of kmsg will be save to the following file +OUTPUT_FILE="/tmp/${TARGET}" + +# set userdata to a long value. In this case, it is "1-2-3-4...50-" +USERDATA_VALUE=$(printf -- '%.2s-' {1..60}) + +# Convert the header string in a regexp, so, we can remove +# the second header as well. +# A header looks like "13,468,514729715,-,ncfrag=0/1135;". If +# release is appended, you might find something like:L +# "6.13.0-04048-g4f561a87745a,13,468,514729715,-,ncfrag=0/1135;" +function header_to_regex() { + # header is everything before ; + local HEADER="${1}" + REGEX=$(echo "${HEADER}" | cut -d'=' -f1) + echo "${REGEX}=[0-9]*\/[0-9]*;" +} + +# We have two headers in the message. Remove both to get the full message, +# and extract the full message. +function extract_msg() { + local MSGFILE="${1}" + # Extract the header, which is the very first thing that arrives in the + # first list. + HEADER=$(sed -n '1p' "${MSGFILE}" | cut -d';' -f1) + HEADER_REGEX=$(header_to_regex "${HEADER}") + + # Remove the two headers from the received message + # This will return the message without any header, similarly to what + # was sent. + sed "s/""${HEADER_REGEX}""//g" "${MSGFILE}" +} + +# Validate the message, which has two messages glued together. +# unwrap them to make sure all the characters were transmitted. +# File will look like the following: +# 13,468,514729715,-,ncfrag=0/1135;<message> +# key=<part of key>-13,468,514729715,-,ncfrag=967/1135;<rest of the key> +function validate_fragmented_result() { + # Discard the netconsole headers, and assemble the full message + RCVMSG=$(extract_msg "${1}") + + # check for the main message + if ! echo "${RCVMSG}" | grep -q "${MSG}"; then + echo "Message body doesn't match." >&2 + echo "msg received=" "${RCVMSG}" >&2 + exit "${ksft_fail}" + fi + + # check userdata + if ! echo "${RCVMSG}" | grep -q "${USERDATA_VALUE}"; then + echo "message userdata doesn't match" >&2 + echo "msg received=" "${RCVMSG}" >&2 + exit "${ksft_fail}" + fi + # test passed. hooray +} + +# Check for basic system dependency and exit if not found +check_for_dependencies +# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5) +echo "6 5" > /proc/sys/kernel/printk +# Remove the namespace, interfaces and netconsole target on exit +trap cleanup EXIT +# Create one namespace and two interfaces +set_network +# Create a dynamic target for netconsole +create_dynamic_target +# Set userdata "key" with the "value" value +set_user_data + + +# TEST 1: Send message and userdata. They will fragment +# ======= +MSG=$(printf -- 'MSG%.3s=' {1..150}) + +# Listen for netconsole port inside the namespace and destination interface +listen_port_and_save_to "${OUTPUT_FILE}" & +# Wait for socat to start and listen to the port. +wait_local_port_listen "${NAMESPACE}" "${PORT}" udp +# Send the message +echo "${MSG}: ${TARGET}" > /dev/kmsg +# Wait until socat saves the file to disk +busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}" +# Check if the message was not corrupted +validate_fragmented_result "${OUTPUT_FILE}" + +# TEST 2: Test with smaller message, and without release appended +# ======= +MSG=$(printf -- 'FOOBAR%.3s=' {1..100}) +# Let's disable release and test again. +disable_release_append + +listen_port_and_save_to "${OUTPUT_FILE}" & +wait_local_port_listen "${NAMESPACE}" "${PORT}" udp +echo "${MSG}: ${TARGET}" > /dev/kmsg +busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}" +validate_fragmented_result "${OUTPUT_FILE}" +exit "${ksft_pass}" --- base-commit: 0ad9617c78acbc71373fb341a6f75d4012b01d69 change-id: 20250129-netcons_frag_msgs-91506d136f50 Best regards, -- Breno Leitao <leitao(a)debian.org>

3 months

2
1
0 0

[PATCH] selftests/cgroup: use bash in test_cpuset_v1_hp.sh

by Bharadwaj Raju

The script uses non-POSIX features like `[[` for conditionals and hence does not work when run with a POSIX /bin/sh. Change the shebang to /bin/bash instead, like the other tests in cgroup. Signed-off-by: Bharadwaj Raju <bharadwaj.raju777(a)gmail.com> --- tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh b/tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh index 3f45512fb512..7406c24be1ac 100755 --- a/tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh +++ b/tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh @@ -1,4 +1,4 @@ -#!/bin/sh +#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Test the special cpuset v1 hotplug case where a cpuset become empty of -- 2.43.0

3 months

2
1
0 0

[PATCH v3 0/2] EDITME: cover title for scanf-kunit-convert

by Tamir Duberstein

This is one of just 3 remaining "Test Module" kselftests (the others being bitmap and printf), the rest having been converted to KUnit. In addition to the enclosed patch, please consider this an RFC on the removal of the "Test Module" kselftest machinery. I tested this using: $ tools/testing/kunit/kunit.py run --arch arm64 --make_options LLVM=1 scanf Signed-off-by: Tamir Duberstein <tamird(a)gmail.com> --- Changes in v3: - Reduce diff noise in lib/Makefile. (Petr Mladek) - Split `scanf_test` into a few test cases. New output: : =================== scanf (10 subtests) ==================== : [PASSED] numbers_simple : ====================== numbers_list ======================= : [PASSED] delim=" " : [PASSED] delim=":" : [PASSED] delim="," : [PASSED] delim="-" : [PASSED] delim="/" : ================== [PASSED] numbers_list =================== : ============ numbers_list_field_width_typemax ============= : [PASSED] delim=" " : [PASSED] delim=":" : [PASSED] delim="," : [PASSED] delim="-" : [PASSED] delim="/" : ======== [PASSED] numbers_list_field_width_typemax ========= : =========== numbers_list_field_width_val_width ============ : [PASSED] delim=" " : [PASSED] delim=":" : [PASSED] delim="," : [PASSED] delim="-" : [PASSED] delim="/" : ======= [PASSED] numbers_list_field_width_val_width ======== : [PASSED] numbers_slice : [PASSED] numbers_prefix_overflow : [PASSED] test_simple_strtoull : [PASSED] test_simple_strtoll : [PASSED] test_simple_strtoul : [PASSED] test_simple_strtol : ====================== [PASSED] scanf ====================== : ============================================================ : Testing complete. Ran 22 tests: passed: 22 : Elapsed time: 5.517s total, 0.001s configuring, 5.440s building, 0.067s running - Link to v2: https://lore.kernel.org/r/20250203-scanf-kunit-convert-v2-1-277a618d804e@gm… Changes in v2: - Rename lib/{test_scanf.c => scanf_kunit.c}. (Andy Shevchenko) - Link to v1: https://lore.kernel.org/r/20250131-scanf-kunit-convert-v1-1-0976524f0eba@gm… --- Tamir Duberstein (2): scanf: convert self-test to KUnit scanf: break kunit into test cases MAINTAINERS | 2 +- arch/m68k/configs/amiga_defconfig | 1 - arch/m68k/configs/apollo_defconfig | 1 - arch/m68k/configs/atari_defconfig | 1 - arch/m68k/configs/bvme6000_defconfig | 1 - arch/m68k/configs/hp300_defconfig | 1 - arch/m68k/configs/mac_defconfig | 1 - arch/m68k/configs/multi_defconfig | 1 - arch/m68k/configs/mvme147_defconfig | 1 - arch/m68k/configs/mvme16x_defconfig | 1 - arch/m68k/configs/q40_defconfig | 1 - arch/m68k/configs/sun3_defconfig | 1 - arch/m68k/configs/sun3x_defconfig | 1 - arch/powerpc/configs/ppc64_defconfig | 1 - lib/Kconfig.debug | 20 +- lib/Makefile | 2 +- lib/scanf_kunit.c | 800 ++++++++++++++++++++++++++++++++++ lib/test_scanf.c | 814 ----------------------------------- tools/testing/selftests/lib/Makefile | 2 +- tools/testing/selftests/lib/config | 1 - tools/testing/selftests/lib/scanf.sh | 4 - 21 files changed, 820 insertions(+), 838 deletions(-) --- base-commit: a86bf2283d2c9769205407e2b54777c03d012939 change-id: 20250131-scanf-kunit-convert-f70dc33bb34c Best regards, -- Tamir Duberstein <tamird(a)gmail.com>

3 months

1
3
0 0

[PATCH v2] scanf: convert self-test to KUnit

by Tamir Duberstein

Convert the scanf() self-test to a KUnit test. In the interest of keeping the patch reasonably-sized this doesn't refactor the tests into proper parameterized tests - it's all one big test case. Signed-off-by: Tamir Duberstein <tamird(a)gmail.com> Acked-by: Geert Uytterhoeven <geert(a)linux-m68k.org> # m68k --- This is one of just 3 remaining "Test Module" kselftests (the others being bitmap and printf), the rest having been converted to KUnit. In addition to the enclosed patch, please consider this an RFC on the removal of the "Test Module" kselftest machinery. I tested this using: $ tools/testing/kunit/kunit.py run --arch arm64 --make_options LLVM=1 scanf --- Changes in v2: - Rename lib/{test_scanf.c => scanf_kunit.c}. (Andy Shevchenko) - Link to v1: https://lore.kernel.org/r/20250131-scanf-kunit-convert-v1-1-0976524f0eba@gm… --- MAINTAINERS | 2 +- arch/m68k/configs/amiga_defconfig | 1 - arch/m68k/configs/apollo_defconfig | 1 - arch/m68k/configs/atari_defconfig | 1 - arch/m68k/configs/bvme6000_defconfig | 1 - arch/m68k/configs/hp300_defconfig | 1 - arch/m68k/configs/mac_defconfig | 1 - arch/m68k/configs/multi_defconfig | 1 - arch/m68k/configs/mvme147_defconfig | 1 - arch/m68k/configs/mvme16x_defconfig | 1 - arch/m68k/configs/q40_defconfig | 1 - arch/m68k/configs/sun3_defconfig | 1 - arch/m68k/configs/sun3x_defconfig | 1 - arch/powerpc/configs/ppc64_defconfig | 1 - lib/Kconfig.debug | 20 +- lib/Makefile | 4 +- lib/{test_scanf.c => scanf_kunit.c} | 704 +++++++++++++++++------------------ tools/testing/selftests/lib/Makefile | 2 +- tools/testing/selftests/lib/config | 1 - tools/testing/selftests/lib/scanf.sh | 4 - 20 files changed, 360 insertions(+), 390 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index ab7463b2f165..7c6eb5dc0470 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -25358,8 +25358,8 @@ R: Sergey Senozhatsky <senozhatsky(a)chromium.org> S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux.git F: Documentation/core-api/printk-formats.rst +F: lib/scanf_kunit.c F: lib/test_printf.c -F: lib/test_scanf.c F: lib/vsprintf.c VT1211 HARDWARE MONITOR DRIVER diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index dbf2ea561c85..e85a4b3a9847 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -623,7 +623,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index b0fd199cc0a4..232b885cc26e 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -580,7 +580,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index bb5b2d3b6c10..228af5b4cd42 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -600,7 +600,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index 8315a13bab73..cbc59aed3d97 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -572,7 +572,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index 350370657e5f..8d3787b8fe6d 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -582,7 +582,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index f942b4755702..a68893d83361 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -599,7 +599,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index b1eaad02efab..9a17526cefd2 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -686,7 +686,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index 6309a4442bb3..5cf2e2860044 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -572,7 +572,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 3feb0731f814..eb395749bc75 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -573,7 +573,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index ea04b1b0da7d..8891f12c2a18 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -589,7 +589,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index f52d9af92153..a49ff5330e5b 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -569,7 +569,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index f348447824da..3022ff492136 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -570,7 +570,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index 465eb96c755e..819387cbbe69 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -445,7 +445,6 @@ CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 1af972a92d06..716c4ef857bb 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2427,6 +2427,23 @@ config ASYNC_RAID6_TEST config TEST_HEXDUMP tristate "Test functions located in the hexdump module at runtime" +config SCANF_KUNIT_TEST + tristate "KUnit test scanf() family of functions at runtime" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this option to test the scanf functions at boot. + + KUnit tests run during boot and output the results to the debug log + in TAP format (http://testanything.org/). Only useful for kernel devs + running the KUnit test harness, and not intended for inclusion into a + production build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config STRING_KUNIT_TEST tristate "KUnit test string functions at runtime" if !KUNIT_ALL_TESTS depends on KUNIT @@ -2443,9 +2460,6 @@ config TEST_KSTRTOX config TEST_PRINTF tristate "Test printf() family of functions at runtime" -config TEST_SCANF - tristate "Test scanf() family of functions at runtime" - config TEST_BITMAP tristate "Test bitmap_*() family of functions at runtime" help diff --git a/lib/Makefile b/lib/Makefile index d5cfc7afbbb8..a53cf6dd1505 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -85,7 +85,6 @@ obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o obj-$(CONFIG_TEST_DYNAMIC_DEBUG) += test_dynamic_debug.o obj-$(CONFIG_TEST_PRINTF) += test_printf.o -obj-$(CONFIG_TEST_SCANF) += test_scanf.o obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_KASAN),yy) @@ -373,8 +372,9 @@ CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN) obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o obj-$(CONFIG_UTIL_MACROS_KUNIT) += util_macros_kunit.o -obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o +obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o +obj-$(CONFIG_SCANF_KUNIT_TEST) += scanf_kunit.o obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o obj-$(CONFIG_BITS_TEST) += test_bits.o obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o diff --git a/lib/test_scanf.c b/lib/scanf_kunit.c similarity index 30% rename from lib/test_scanf.c rename to lib/scanf_kunit.c index 44f8508c9d88..70364ce20ec3 100644 --- a/lib/test_scanf.c +++ b/lib/scanf_kunit.c @@ -5,8 +5,8 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <kunit/test.h> #include <linux/bitops.h> -#include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/overflow.h> @@ -15,148 +15,123 @@ #include <linux/slab.h> #include <linux/string.h> -#include "../tools/testing/selftests/kselftest_module.h" - #define BUF_SIZE 1024 -KSTM_MODULE_GLOBALS(); -static char *test_buffer __initdata; -static char *fmt_buffer __initdata; -static struct rnd_state rnd_state __initdata; +static char *test_buffer; +static char *fmt_buffer; +static struct rnd_state rnd_state; -typedef int (*check_fn)(const void *check_data, const char *string, +typedef void (*check_fn)(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap); -static void __scanf(4, 6) __init -_test(check_fn fn, const void *check_data, const char *string, const char *fmt, +static void __scanf(5, 7) +_test(struct kunit *test, check_fn fn, const void *check_data, const char *string, const char *fmt, int n_args, ...) { va_list ap, ap_copy; - int ret; - - total_tests++; va_start(ap, n_args); va_copy(ap_copy, ap); - ret = vsscanf(string, fmt, ap_copy); + KUNIT_EXPECT_EQ_MSG(test, vsscanf(string, fmt, ap_copy), n_args, + "vsscanf(\"%s\", \"%s\", ...)", string, fmt); va_end(ap_copy); - if (ret != n_args) { - pr_warn("vsscanf(\"%s\", \"%s\", ...) returned %d expected %d\n", - string, fmt, ret, n_args); - goto fail; - } - - ret = (*fn)(check_data, string, fmt, n_args, ap); - if (ret) - goto fail; - - va_end(ap); - - return; - -fail: - failed_tests++; + (*fn)(test, check_data, string, fmt, n_args, ap); va_end(ap); } -#define _check_numbers_template(arg_fmt, expect, str, fmt, n_args, ap) \ +#define _check_numbers_template(test, arg_fmt, expect, str, fmt, n_args, ap) \ do { \ pr_debug("\"%s\", \"%s\" ->\n", str, fmt); \ for (; n_args > 0; n_args--, expect++) { \ typeof(*expect) got = *va_arg(ap, typeof(expect)); \ pr_debug("\t" arg_fmt "\n", got); \ - if (got != *expect) { \ - pr_warn("vsscanf(\"%s\", \"%s\", ...) expected " arg_fmt " got " arg_fmt "\n", \ - str, fmt, *expect, got); \ - return 1; \ - } \ + KUNIT_EXPECT_EQ_MSG(test, got, *expect, "vsscanf(\"%s\", \"%s\", ...)", str, fmt); \ } \ - return 0; \ } while (0) -static int __init check_ull(const void *check_data, const char *string, +static void check_ull(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned long long *pval = check_data; - _check_numbers_template("%llu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%llu", pval, string, fmt, n_args, ap); } -static int __init check_ll(const void *check_data, const char *string, +static void check_ll(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const long long *pval = check_data; - _check_numbers_template("%lld", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%lld", pval, string, fmt, n_args, ap); } -static int __init check_ulong(const void *check_data, const char *string, +static void check_ulong(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned long *pval = check_data; - _check_numbers_template("%lu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%lu", pval, string, fmt, n_args, ap); } -static int __init check_long(const void *check_data, const char *string, +static void check_long(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const long *pval = check_data; - _check_numbers_template("%ld", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%ld", pval, string, fmt, n_args, ap); } -static int __init check_uint(const void *check_data, const char *string, +static void check_uint(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned int *pval = check_data; - _check_numbers_template("%u", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%u", pval, string, fmt, n_args, ap); } -static int __init check_int(const void *check_data, const char *string, +static void check_int(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const int *pval = check_data; - _check_numbers_template("%d", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%d", pval, string, fmt, n_args, ap); } -static int __init check_ushort(const void *check_data, const char *string, +static void check_ushort(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned short *pval = check_data; - _check_numbers_template("%hu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hu", pval, string, fmt, n_args, ap); } -static int __init check_short(const void *check_data, const char *string, +static void check_short(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const short *pval = check_data; - _check_numbers_template("%hd", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hd", pval, string, fmt, n_args, ap); } -static int __init check_uchar(const void *check_data, const char *string, +static void check_uchar(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned char *pval = check_data; - _check_numbers_template("%hhu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hhu", pval, string, fmt, n_args, ap); } -static int __init check_char(const void *check_data, const char *string, +static void check_char(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const signed char *pval = check_data; - _check_numbers_template("%hhd", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hhd", pval, string, fmt, n_args, ap); } /* Selection of interesting numbers to test, copied from test-kstrtox.c */ -static const unsigned long long numbers[] __initconst = { +static const unsigned long long numbers[] = { 0x0ULL, 0x1ULL, 0x7fULL, @@ -190,76 +165,76 @@ static const unsigned long long numbers[] __initconst = { : ((unsigned long long)(val) <= type_max(T))) -#define test_one_number(T, gen_fmt, scan_fmt, val, fn) \ -do { \ - const T expect_val = (T)(val); \ - T result = ~expect_val; /* should be overwritten */ \ - \ - snprintf(test_buffer, BUF_SIZE, gen_fmt, expect_val); \ - _test(fn, &expect_val, test_buffer, "%" scan_fmt, 1, &result); \ +#define test_one_number(test, T, gen_fmt, scan_fmt, val, fn) \ +do { \ + const T expect_val = (T)(val); \ + T result = ~expect_val; /* should be overwritten */ \ + \ + snprintf(test_buffer, BUF_SIZE, gen_fmt, expect_val); \ + _test(test, fn, &expect_val, test_buffer, "%" scan_fmt, 1, &result); \ } while (0) -#define simple_numbers_loop(T, gen_fmt, scan_fmt, fn) \ +#define simple_numbers_loop(test, T, gen_fmt, scan_fmt, fn) \ do { \ int i; \ \ for (i = 0; i < ARRAY_SIZE(numbers); i++) { \ if (value_representable_in_type(T, numbers[i])) \ - test_one_number(T, gen_fmt, scan_fmt, \ + test_one_number(test, T, gen_fmt, scan_fmt, \ numbers[i], fn); \ \ if (value_representable_in_type(T, -numbers[i])) \ - test_one_number(T, gen_fmt, scan_fmt, \ + test_one_number(test, T, gen_fmt, scan_fmt, \ -numbers[i], fn); \ } \ } while (0) -static void __init numbers_simple(void) -{ - simple_numbers_loop(unsigned long long, "%llu", "llu", check_ull); - simple_numbers_loop(long long, "%lld", "lld", check_ll); - simple_numbers_loop(long long, "%lld", "lli", check_ll); - simple_numbers_loop(unsigned long long, "%llx", "llx", check_ull); - simple_numbers_loop(long long, "%llx", "llx", check_ll); - simple_numbers_loop(long long, "0x%llx", "lli", check_ll); - simple_numbers_loop(unsigned long long, "0x%llx", "llx", check_ull); - simple_numbers_loop(long long, "0x%llx", "llx", check_ll); - - simple_numbers_loop(unsigned long, "%lu", "lu", check_ulong); - simple_numbers_loop(long, "%ld", "ld", check_long); - simple_numbers_loop(long, "%ld", "li", check_long); - simple_numbers_loop(unsigned long, "%lx", "lx", check_ulong); - simple_numbers_loop(long, "%lx", "lx", check_long); - simple_numbers_loop(long, "0x%lx", "li", check_long); - simple_numbers_loop(unsigned long, "0x%lx", "lx", check_ulong); - simple_numbers_loop(long, "0x%lx", "lx", check_long); - - simple_numbers_loop(unsigned int, "%u", "u", check_uint); - simple_numbers_loop(int, "%d", "d", check_int); - simple_numbers_loop(int, "%d", "i", check_int); - simple_numbers_loop(unsigned int, "%x", "x", check_uint); - simple_numbers_loop(int, "%x", "x", check_int); - simple_numbers_loop(int, "0x%x", "i", check_int); - simple_numbers_loop(unsigned int, "0x%x", "x", check_uint); - simple_numbers_loop(int, "0x%x", "x", check_int); - - simple_numbers_loop(unsigned short, "%hu", "hu", check_ushort); - simple_numbers_loop(short, "%hd", "hd", check_short); - simple_numbers_loop(short, "%hd", "hi", check_short); - simple_numbers_loop(unsigned short, "%hx", "hx", check_ushort); - simple_numbers_loop(short, "%hx", "hx", check_short); - simple_numbers_loop(short, "0x%hx", "hi", check_short); - simple_numbers_loop(unsigned short, "0x%hx", "hx", check_ushort); - simple_numbers_loop(short, "0x%hx", "hx", check_short); - - simple_numbers_loop(unsigned char, "%hhu", "hhu", check_uchar); - simple_numbers_loop(signed char, "%hhd", "hhd", check_char); - simple_numbers_loop(signed char, "%hhd", "hhi", check_char); - simple_numbers_loop(unsigned char, "%hhx", "hhx", check_uchar); - simple_numbers_loop(signed char, "%hhx", "hhx", check_char); - simple_numbers_loop(signed char, "0x%hhx", "hhi", check_char); - simple_numbers_loop(unsigned char, "0x%hhx", "hhx", check_uchar); - simple_numbers_loop(signed char, "0x%hhx", "hhx", check_char); +static void numbers_simple(struct kunit *test) +{ + simple_numbers_loop(test, unsigned long long, "%llu", "llu", check_ull); + simple_numbers_loop(test, long long, "%lld", "lld", check_ll); + simple_numbers_loop(test, long long, "%lld", "lli", check_ll); + simple_numbers_loop(test, unsigned long long, "%llx", "llx", check_ull); + simple_numbers_loop(test, long long, "%llx", "llx", check_ll); + simple_numbers_loop(test, long long, "0x%llx", "lli", check_ll); + simple_numbers_loop(test, unsigned long long, "0x%llx", "llx", check_ull); + simple_numbers_loop(test, long long, "0x%llx", "llx", check_ll); + + simple_numbers_loop(test, unsigned long, "%lu", "lu", check_ulong); + simple_numbers_loop(test, long, "%ld", "ld", check_long); + simple_numbers_loop(test, long, "%ld", "li", check_long); + simple_numbers_loop(test, unsigned long, "%lx", "lx", check_ulong); + simple_numbers_loop(test, long, "%lx", "lx", check_long); + simple_numbers_loop(test, long, "0x%lx", "li", check_long); + simple_numbers_loop(test, unsigned long, "0x%lx", "lx", check_ulong); + simple_numbers_loop(test, long, "0x%lx", "lx", check_long); + + simple_numbers_loop(test, unsigned int, "%u", "u", check_uint); + simple_numbers_loop(test, int, "%d", "d", check_int); + simple_numbers_loop(test, int, "%d", "i", check_int); + simple_numbers_loop(test, unsigned int, "%x", "x", check_uint); + simple_numbers_loop(test, int, "%x", "x", check_int); + simple_numbers_loop(test, int, "0x%x", "i", check_int); + simple_numbers_loop(test, unsigned int, "0x%x", "x", check_uint); + simple_numbers_loop(test, int, "0x%x", "x", check_int); + + simple_numbers_loop(test, unsigned short, "%hu", "hu", check_ushort); + simple_numbers_loop(test, short, "%hd", "hd", check_short); + simple_numbers_loop(test, short, "%hd", "hi", check_short); + simple_numbers_loop(test, unsigned short, "%hx", "hx", check_ushort); + simple_numbers_loop(test, short, "%hx", "hx", check_short); + simple_numbers_loop(test, short, "0x%hx", "hi", check_short); + simple_numbers_loop(test, unsigned short, "0x%hx", "hx", check_ushort); + simple_numbers_loop(test, short, "0x%hx", "hx", check_short); + + simple_numbers_loop(test, unsigned char, "%hhu", "hhu", check_uchar); + simple_numbers_loop(test, signed char, "%hhd", "hhd", check_char); + simple_numbers_loop(test, signed char, "%hhd", "hhi", check_char); + simple_numbers_loop(test, unsigned char, "%hhx", "hhx", check_uchar); + simple_numbers_loop(test, signed char, "%hhx", "hhx", check_char); + simple_numbers_loop(test, signed char, "0x%hhx", "hhi", check_char); + simple_numbers_loop(test, unsigned char, "0x%hhx", "hhx", check_uchar); + simple_numbers_loop(test, signed char, "0x%hhx", "hhx", check_char); } /* @@ -267,14 +242,14 @@ static void __init numbers_simple(void) * the raw prandom*() functions (Not mathematically rigorous!!). * Variabilty of length and value is more important than perfect randomness. */ -static u32 __init next_test_random(u32 max_bits) +static u32 next_test_random(u32 max_bits) { u32 n_bits = hweight32(prandom_u32_state(&rnd_state)) % (max_bits + 1); return prandom_u32_state(&rnd_state) & GENMASK(n_bits, 0); } -static unsigned long long __init next_test_random_ull(void) +static unsigned long long next_test_random_ull(void) { u32 rand1 = prandom_u32_state(&rnd_state); u32 n_bits = (hweight32(rand1) * 3) % 64; @@ -311,7 +286,7 @@ do { \ * updating buf_pos and returning the number of characters appended. * On error buf_pos is not changed and return value is 0. */ -static int __init __printf(4, 5) +static int __printf(4, 5) append_fmt(char *buf, int *buf_pos, int buf_len, const char *val_fmt, ...) { va_list ap; @@ -333,7 +308,7 @@ append_fmt(char *buf, int *buf_pos, int buf_len, const char *val_fmt, ...) * Convenience function to append the field delimiter string * to both the value string and format string buffers. */ -static void __init append_delim(char *str_buf, int *str_buf_pos, int str_buf_len, +static void append_delim(char *str_buf, int *str_buf_pos, int str_buf_len, char *fmt_buf, int *fmt_buf_pos, int fmt_buf_len, const char *delim_str) { @@ -341,15 +316,15 @@ static void __init append_delim(char *str_buf, int *str_buf_pos, int str_buf_len append_fmt(fmt_buf, fmt_buf_pos, fmt_buf_len, delim_str); } -#define test_array_8(fn, check_data, string, fmt, arr) \ +#define test_array_8(test, fn, check_data, string, fmt, arr) \ do { \ BUILD_BUG_ON(ARRAY_SIZE(arr) != 8); \ - _test(fn, check_data, string, fmt, 8, \ + _test(test, fn, check_data, string, fmt, 8, \ &(arr)[0], &(arr)[1], &(arr)[2], &(arr)[3], \ &(arr)[4], &(arr)[5], &(arr)[6], &(arr)[7]); \ } while (0) -#define numbers_list_8(T, gen_fmt, field_sep, scan_fmt, fn) \ +#define numbers_list_8(test, T, gen_fmt, field_sep, scan_fmt, fn) \ do { \ int i, pos = 0, fmt_pos = 0; \ T expect[8], result[8]; \ @@ -366,18 +341,18 @@ do { \ append_fmt(fmt_buffer, &fmt_pos, BUF_SIZE, "%%%s", scan_fmt); \ } \ \ - test_array_8(fn, expect, test_buffer, fmt_buffer, result); \ + test_array_8(test, fn, expect, test_buffer, fmt_buffer, result); \ } while (0) -#define numbers_list_fix_width(T, gen_fmt, field_sep, width, scan_fmt, fn) \ +#define numbers_list_fix_width(test, T, gen_fmt, field_sep, width, scan_fmt, fn)\ do { \ char full_fmt[16]; \ \ snprintf(full_fmt, sizeof(full_fmt), "%u%s", width, scan_fmt); \ - numbers_list_8(T, gen_fmt, field_sep, full_fmt, fn); \ + numbers_list_8(test, T, gen_fmt, field_sep, full_fmt, fn); \ } while (0) -#define numbers_list_val_width(T, gen_fmt, field_sep, scan_fmt, fn) \ +#define numbers_list_val_width(test, T, gen_fmt, field_sep, scan_fmt, fn) \ do { \ int i, val_len, pos = 0, fmt_pos = 0; \ T expect[8], result[8]; \ @@ -395,201 +370,201 @@ do { \ "%%%u%s", val_len, scan_fmt); \ } \ \ - test_array_8(fn, expect, test_buffer, fmt_buffer, result); \ + test_array_8(test, fn, expect, test_buffer, fmt_buffer, result); \ } while (0) -static void __init numbers_list_ll(const char *delim) +static void numbers_list_ll(struct kunit *test, const char *delim) { - numbers_list_8(unsigned long long, "%llu", delim, "llu", check_ull); - numbers_list_8(long long, "%lld", delim, "lld", check_ll); - numbers_list_8(long long, "%lld", delim, "lli", check_ll); - numbers_list_8(unsigned long long, "%llx", delim, "llx", check_ull); - numbers_list_8(unsigned long long, "0x%llx", delim, "llx", check_ull); - numbers_list_8(long long, "0x%llx", delim, "lli", check_ll); + numbers_list_8(test, unsigned long long, "%llu", delim, "llu", check_ull); + numbers_list_8(test, long long, "%lld", delim, "lld", check_ll); + numbers_list_8(test, long long, "%lld", delim, "lli", check_ll); + numbers_list_8(test, unsigned long long, "%llx", delim, "llx", check_ull); + numbers_list_8(test, unsigned long long, "0x%llx", delim, "llx", check_ull); + numbers_list_8(test, long long, "0x%llx", delim, "lli", check_ll); } -static void __init numbers_list_l(const char *delim) +static void numbers_list_l(struct kunit *test, const char *delim) { - numbers_list_8(unsigned long, "%lu", delim, "lu", check_ulong); - numbers_list_8(long, "%ld", delim, "ld", check_long); - numbers_list_8(long, "%ld", delim, "li", check_long); - numbers_list_8(unsigned long, "%lx", delim, "lx", check_ulong); - numbers_list_8(unsigned long, "0x%lx", delim, "lx", check_ulong); - numbers_list_8(long, "0x%lx", delim, "li", check_long); + numbers_list_8(test, unsigned long, "%lu", delim, "lu", check_ulong); + numbers_list_8(test, long, "%ld", delim, "ld", check_long); + numbers_list_8(test, long, "%ld", delim, "li", check_long); + numbers_list_8(test, unsigned long, "%lx", delim, "lx", check_ulong); + numbers_list_8(test, unsigned long, "0x%lx", delim, "lx", check_ulong); + numbers_list_8(test, long, "0x%lx", delim, "li", check_long); } -static void __init numbers_list_d(const char *delim) +static void numbers_list_d(struct kunit *test, const char *delim) { - numbers_list_8(unsigned int, "%u", delim, "u", check_uint); - numbers_list_8(int, "%d", delim, "d", check_int); - numbers_list_8(int, "%d", delim, "i", check_int); - numbers_list_8(unsigned int, "%x", delim, "x", check_uint); - numbers_list_8(unsigned int, "0x%x", delim, "x", check_uint); - numbers_list_8(int, "0x%x", delim, "i", check_int); + numbers_list_8(test, unsigned int, "%u", delim, "u", check_uint); + numbers_list_8(test, int, "%d", delim, "d", check_int); + numbers_list_8(test, int, "%d", delim, "i", check_int); + numbers_list_8(test, unsigned int, "%x", delim, "x", check_uint); + numbers_list_8(test, unsigned int, "0x%x", delim, "x", check_uint); + numbers_list_8(test, int, "0x%x", delim, "i", check_int); } -static void __init numbers_list_h(const char *delim) +static void numbers_list_h(struct kunit *test, const char *delim) { - numbers_list_8(unsigned short, "%hu", delim, "hu", check_ushort); - numbers_list_8(short, "%hd", delim, "hd", check_short); - numbers_list_8(short, "%hd", delim, "hi", check_short); - numbers_list_8(unsigned short, "%hx", delim, "hx", check_ushort); - numbers_list_8(unsigned short, "0x%hx", delim, "hx", check_ushort); - numbers_list_8(short, "0x%hx", delim, "hi", check_short); + numbers_list_8(test, unsigned short, "%hu", delim, "hu", check_ushort); + numbers_list_8(test, short, "%hd", delim, "hd", check_short); + numbers_list_8(test, short, "%hd", delim, "hi", check_short); + numbers_list_8(test, unsigned short, "%hx", delim, "hx", check_ushort); + numbers_list_8(test, unsigned short, "0x%hx", delim, "hx", check_ushort); + numbers_list_8(test, short, "0x%hx", delim, "hi", check_short); } -static void __init numbers_list_hh(const char *delim) +static void numbers_list_hh(struct kunit *test, const char *delim) { - numbers_list_8(unsigned char, "%hhu", delim, "hhu", check_uchar); - numbers_list_8(signed char, "%hhd", delim, "hhd", check_char); - numbers_list_8(signed char, "%hhd", delim, "hhi", check_char); - numbers_list_8(unsigned char, "%hhx", delim, "hhx", check_uchar); - numbers_list_8(unsigned char, "0x%hhx", delim, "hhx", check_uchar); - numbers_list_8(signed char, "0x%hhx", delim, "hhi", check_char); + numbers_list_8(test, unsigned char, "%hhu", delim, "hhu", check_uchar); + numbers_list_8(test, signed char, "%hhd", delim, "hhd", check_char); + numbers_list_8(test, signed char, "%hhd", delim, "hhi", check_char); + numbers_list_8(test, unsigned char, "%hhx", delim, "hhx", check_uchar); + numbers_list_8(test, unsigned char, "0x%hhx", delim, "hhx", check_uchar); + numbers_list_8(test, signed char, "0x%hhx", delim, "hhi", check_char); } -static void __init numbers_list(const char *delim) +static void numbers_list(struct kunit *test, const char *delim) { - numbers_list_ll(delim); - numbers_list_l(delim); - numbers_list_d(delim); - numbers_list_h(delim); - numbers_list_hh(delim); + numbers_list_ll(test, delim); + numbers_list_l(test, delim); + numbers_list_d(test, delim); + numbers_list_h(test, delim); + numbers_list_hh(test, delim); } -static void __init numbers_list_field_width_ll(const char *delim) +static void numbers_list_field_width_ll(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned long long, "%llu", delim, 20, "llu", check_ull); - numbers_list_fix_width(long long, "%lld", delim, 20, "lld", check_ll); - numbers_list_fix_width(long long, "%lld", delim, 20, "lli", check_ll); - numbers_list_fix_width(unsigned long long, "%llx", delim, 16, "llx", check_ull); - numbers_list_fix_width(unsigned long long, "0x%llx", delim, 18, "llx", check_ull); - numbers_list_fix_width(long long, "0x%llx", delim, 18, "lli", check_ll); + numbers_list_fix_width(test, unsigned long long, "%llu", delim, 20, "llu", check_ull); + numbers_list_fix_width(test, long long, "%lld", delim, 20, "lld", check_ll); + numbers_list_fix_width(test, long long, "%lld", delim, 20, "lli", check_ll); + numbers_list_fix_width(test, unsigned long long, "%llx", delim, 16, "llx", check_ull); + numbers_list_fix_width(test, unsigned long long, "0x%llx", delim, 18, "llx", check_ull); + numbers_list_fix_width(test, long long, "0x%llx", delim, 18, "lli", check_ll); } -static void __init numbers_list_field_width_l(const char *delim) +static void numbers_list_field_width_l(struct kunit *test, const char *delim) { #if BITS_PER_LONG == 64 - numbers_list_fix_width(unsigned long, "%lu", delim, 20, "lu", check_ulong); - numbers_list_fix_width(long, "%ld", delim, 20, "ld", check_long); - numbers_list_fix_width(long, "%ld", delim, 20, "li", check_long); - numbers_list_fix_width(unsigned long, "%lx", delim, 16, "lx", check_ulong); - numbers_list_fix_width(unsigned long, "0x%lx", delim, 18, "lx", check_ulong); - numbers_list_fix_width(long, "0x%lx", delim, 18, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lu", delim, 20, "lu", check_ulong); + numbers_list_fix_width(test, long, "%ld", delim, 20, "ld", check_long); + numbers_list_fix_width(test, long, "%ld", delim, 20, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lx", delim, 16, "lx", check_ulong); + numbers_list_fix_width(test, unsigned long, "0x%lx", delim, 18, "lx", check_ulong); + numbers_list_fix_width(test, long, "0x%lx", delim, 18, "li", check_long); #else - numbers_list_fix_width(unsigned long, "%lu", delim, 10, "lu", check_ulong); - numbers_list_fix_width(long, "%ld", delim, 11, "ld", check_long); - numbers_list_fix_width(long, "%ld", delim, 11, "li", check_long); - numbers_list_fix_width(unsigned long, "%lx", delim, 8, "lx", check_ulong); - numbers_list_fix_width(unsigned long, "0x%lx", delim, 10, "lx", check_ulong); - numbers_list_fix_width(long, "0x%lx", delim, 10, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lu", delim, 10, "lu", check_ulong); + numbers_list_fix_width(test, long, "%ld", delim, 11, "ld", check_long); + numbers_list_fix_width(test, long, "%ld", delim, 11, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lx", delim, 8, "lx", check_ulong); + numbers_list_fix_width(test, unsigned long, "0x%lx", delim, 10, "lx", check_ulong); + numbers_list_fix_width(test, long, "0x%lx", delim, 10, "li", check_long); #endif } -static void __init numbers_list_field_width_d(const char *delim) +static void numbers_list_field_width_d(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned int, "%u", delim, 10, "u", check_uint); - numbers_list_fix_width(int, "%d", delim, 11, "d", check_int); - numbers_list_fix_width(int, "%d", delim, 11, "i", check_int); - numbers_list_fix_width(unsigned int, "%x", delim, 8, "x", check_uint); - numbers_list_fix_width(unsigned int, "0x%x", delim, 10, "x", check_uint); - numbers_list_fix_width(int, "0x%x", delim, 10, "i", check_int); + numbers_list_fix_width(test, unsigned int, "%u", delim, 10, "u", check_uint); + numbers_list_fix_width(test, int, "%d", delim, 11, "d", check_int); + numbers_list_fix_width(test, int, "%d", delim, 11, "i", check_int); + numbers_list_fix_width(test, unsigned int, "%x", delim, 8, "x", check_uint); + numbers_list_fix_width(test, unsigned int, "0x%x", delim, 10, "x", check_uint); + numbers_list_fix_width(test, int, "0x%x", delim, 10, "i", check_int); } -static void __init numbers_list_field_width_h(const char *delim) +static void numbers_list_field_width_h(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned short, "%hu", delim, 5, "hu", check_ushort); - numbers_list_fix_width(short, "%hd", delim, 6, "hd", check_short); - numbers_list_fix_width(short, "%hd", delim, 6, "hi", check_short); - numbers_list_fix_width(unsigned short, "%hx", delim, 4, "hx", check_ushort); - numbers_list_fix_width(unsigned short, "0x%hx", delim, 6, "hx", check_ushort); - numbers_list_fix_width(short, "0x%hx", delim, 6, "hi", check_short); + numbers_list_fix_width(test, unsigned short, "%hu", delim, 5, "hu", check_ushort); + numbers_list_fix_width(test, short, "%hd", delim, 6, "hd", check_short); + numbers_list_fix_width(test, short, "%hd", delim, 6, "hi", check_short); + numbers_list_fix_width(test, unsigned short, "%hx", delim, 4, "hx", check_ushort); + numbers_list_fix_width(test, unsigned short, "0x%hx", delim, 6, "hx", check_ushort); + numbers_list_fix_width(test, short, "0x%hx", delim, 6, "hi", check_short); } -static void __init numbers_list_field_width_hh(const char *delim) +static void numbers_list_field_width_hh(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned char, "%hhu", delim, 3, "hhu", check_uchar); - numbers_list_fix_width(signed char, "%hhd", delim, 4, "hhd", check_char); - numbers_list_fix_width(signed char, "%hhd", delim, 4, "hhi", check_char); - numbers_list_fix_width(unsigned char, "%hhx", delim, 2, "hhx", check_uchar); - numbers_list_fix_width(unsigned char, "0x%hhx", delim, 4, "hhx", check_uchar); - numbers_list_fix_width(signed char, "0x%hhx", delim, 4, "hhi", check_char); + numbers_list_fix_width(test, unsigned char, "%hhu", delim, 3, "hhu", check_uchar); + numbers_list_fix_width(test, signed char, "%hhd", delim, 4, "hhd", check_char); + numbers_list_fix_width(test, signed char, "%hhd", delim, 4, "hhi", check_char); + numbers_list_fix_width(test, unsigned char, "%hhx", delim, 2, "hhx", check_uchar); + numbers_list_fix_width(test, unsigned char, "0x%hhx", delim, 4, "hhx", check_uchar); + numbers_list_fix_width(test, signed char, "0x%hhx", delim, 4, "hhi", check_char); } /* * List of numbers separated by delim. Each field width specifier is the * maximum possible digits for the given type and base. */ -static void __init numbers_list_field_width_typemax(const char *delim) +static void numbers_list_field_width_typemax(struct kunit *test, const char *delim) { - numbers_list_field_width_ll(delim); - numbers_list_field_width_l(delim); - numbers_list_field_width_d(delim); - numbers_list_field_width_h(delim); - numbers_list_field_width_hh(delim); + numbers_list_field_width_ll(test, delim); + numbers_list_field_width_l(test, delim); + numbers_list_field_width_d(test, delim); + numbers_list_field_width_h(test, delim); + numbers_list_field_width_hh(test, delim); } -static void __init numbers_list_field_width_val_ll(const char *delim) +static void numbers_list_field_width_val_ll(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned long long, "%llu", delim, "llu", check_ull); - numbers_list_val_width(long long, "%lld", delim, "lld", check_ll); - numbers_list_val_width(long long, "%lld", delim, "lli", check_ll); - numbers_list_val_width(unsigned long long, "%llx", delim, "llx", check_ull); - numbers_list_val_width(unsigned long long, "0x%llx", delim, "llx", check_ull); - numbers_list_val_width(long long, "0x%llx", delim, "lli", check_ll); + numbers_list_val_width(test, unsigned long long, "%llu", delim, "llu", check_ull); + numbers_list_val_width(test, long long, "%lld", delim, "lld", check_ll); + numbers_list_val_width(test, long long, "%lld", delim, "lli", check_ll); + numbers_list_val_width(test, unsigned long long, "%llx", delim, "llx", check_ull); + numbers_list_val_width(test, unsigned long long, "0x%llx", delim, "llx", check_ull); + numbers_list_val_width(test, long long, "0x%llx", delim, "lli", check_ll); } -static void __init numbers_list_field_width_val_l(const char *delim) +static void numbers_list_field_width_val_l(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned long, "%lu", delim, "lu", check_ulong); - numbers_list_val_width(long, "%ld", delim, "ld", check_long); - numbers_list_val_width(long, "%ld", delim, "li", check_long); - numbers_list_val_width(unsigned long, "%lx", delim, "lx", check_ulong); - numbers_list_val_width(unsigned long, "0x%lx", delim, "lx", check_ulong); - numbers_list_val_width(long, "0x%lx", delim, "li", check_long); + numbers_list_val_width(test, unsigned long, "%lu", delim, "lu", check_ulong); + numbers_list_val_width(test, long, "%ld", delim, "ld", check_long); + numbers_list_val_width(test, long, "%ld", delim, "li", check_long); + numbers_list_val_width(test, unsigned long, "%lx", delim, "lx", check_ulong); + numbers_list_val_width(test, unsigned long, "0x%lx", delim, "lx", check_ulong); + numbers_list_val_width(test, long, "0x%lx", delim, "li", check_long); } -static void __init numbers_list_field_width_val_d(const char *delim) +static void numbers_list_field_width_val_d(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned int, "%u", delim, "u", check_uint); - numbers_list_val_width(int, "%d", delim, "d", check_int); - numbers_list_val_width(int, "%d", delim, "i", check_int); - numbers_list_val_width(unsigned int, "%x", delim, "x", check_uint); - numbers_list_val_width(unsigned int, "0x%x", delim, "x", check_uint); - numbers_list_val_width(int, "0x%x", delim, "i", check_int); + numbers_list_val_width(test, unsigned int, "%u", delim, "u", check_uint); + numbers_list_val_width(test, int, "%d", delim, "d", check_int); + numbers_list_val_width(test, int, "%d", delim, "i", check_int); + numbers_list_val_width(test, unsigned int, "%x", delim, "x", check_uint); + numbers_list_val_width(test, unsigned int, "0x%x", delim, "x", check_uint); + numbers_list_val_width(test, int, "0x%x", delim, "i", check_int); } -static void __init numbers_list_field_width_val_h(const char *delim) +static void numbers_list_field_width_val_h(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned short, "%hu", delim, "hu", check_ushort); - numbers_list_val_width(short, "%hd", delim, "hd", check_short); - numbers_list_val_width(short, "%hd", delim, "hi", check_short); - numbers_list_val_width(unsigned short, "%hx", delim, "hx", check_ushort); - numbers_list_val_width(unsigned short, "0x%hx", delim, "hx", check_ushort); - numbers_list_val_width(short, "0x%hx", delim, "hi", check_short); + numbers_list_val_width(test, unsigned short, "%hu", delim, "hu", check_ushort); + numbers_list_val_width(test, short, "%hd", delim, "hd", check_short); + numbers_list_val_width(test, short, "%hd", delim, "hi", check_short); + numbers_list_val_width(test, unsigned short, "%hx", delim, "hx", check_ushort); + numbers_list_val_width(test, unsigned short, "0x%hx", delim, "hx", check_ushort); + numbers_list_val_width(test, short, "0x%hx", delim, "hi", check_short); } -static void __init numbers_list_field_width_val_hh(const char *delim) +static void numbers_list_field_width_val_hh(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned char, "%hhu", delim, "hhu", check_uchar); - numbers_list_val_width(signed char, "%hhd", delim, "hhd", check_char); - numbers_list_val_width(signed char, "%hhd", delim, "hhi", check_char); - numbers_list_val_width(unsigned char, "%hhx", delim, "hhx", check_uchar); - numbers_list_val_width(unsigned char, "0x%hhx", delim, "hhx", check_uchar); - numbers_list_val_width(signed char, "0x%hhx", delim, "hhi", check_char); + numbers_list_val_width(test, unsigned char, "%hhu", delim, "hhu", check_uchar); + numbers_list_val_width(test, signed char, "%hhd", delim, "hhd", check_char); + numbers_list_val_width(test, signed char, "%hhd", delim, "hhi", check_char); + numbers_list_val_width(test, unsigned char, "%hhx", delim, "hhx", check_uchar); + numbers_list_val_width(test, unsigned char, "0x%hhx", delim, "hhx", check_uchar); + numbers_list_val_width(test, signed char, "0x%hhx", delim, "hhi", check_char); } /* * List of numbers separated by delim. Each field width specifier is the * exact length of the corresponding value digits in the string being scanned. */ -static void __init numbers_list_field_width_val_width(const char *delim) +static void numbers_list_field_width_val_width(struct kunit *test, const char *delim) { - numbers_list_field_width_val_ll(delim); - numbers_list_field_width_val_l(delim); - numbers_list_field_width_val_d(delim); - numbers_list_field_width_val_h(delim); - numbers_list_field_width_val_hh(delim); + numbers_list_field_width_val_ll(test, delim); + numbers_list_field_width_val_l(test, delim); + numbers_list_field_width_val_d(test, delim); + numbers_list_field_width_val_h(test, delim); + numbers_list_field_width_val_hh(test, delim); } /* @@ -598,67 +573,67 @@ static void __init numbers_list_field_width_val_width(const char *delim) * of digits. For example the hex values c0,3,bf01,303 would have a * string representation of "c03bf01303" and extracted with "%2x%1x%4x%3x". */ -static void __init numbers_slice(void) +static void numbers_slice(struct kunit *test) { - numbers_list_field_width_val_width(""); + numbers_list_field_width_val_width(test, ""); } -#define test_number_prefix(T, str, scan_fmt, expect0, expect1, n_args, fn) \ +#define test_number_prefix(test, T, str, scan_fmt, expect0, expect1, n_args, fn)\ do { \ const T expect[2] = { expect0, expect1 }; \ T result[2] = { (T)~expect[0], (T)~expect[1] }; \ \ - _test(fn, &expect, str, scan_fmt, n_args, &result[0], &result[1]); \ + _test(test, fn, &expect, str, scan_fmt, n_args, &result[0], &result[1]);\ } while (0) /* * Number prefix is >= field width. * Expected behaviour is derived from testing userland sscanf. */ -static void __init numbers_prefix_overflow(void) +static void numbers_prefix_overflow(struct kunit *test) { /* * Negative decimal with a field of width 1, should quit scanning * and return 0. */ - test_number_prefix(long long, "-1 1", "%1lld %lld", 0, 0, 0, check_ll); - test_number_prefix(long, "-1 1", "%1ld %ld", 0, 0, 0, check_long); - test_number_prefix(int, "-1 1", "%1d %d", 0, 0, 0, check_int); - test_number_prefix(short, "-1 1", "%1hd %hd", 0, 0, 0, check_short); - test_number_prefix(signed char, "-1 1", "%1hhd %hhd", 0, 0, 0, check_char); - - test_number_prefix(long long, "-1 1", "%1lli %lli", 0, 0, 0, check_ll); - test_number_prefix(long, "-1 1", "%1li %li", 0, 0, 0, check_long); - test_number_prefix(int, "-1 1", "%1i %i", 0, 0, 0, check_int); - test_number_prefix(short, "-1 1", "%1hi %hi", 0, 0, 0, check_short); - test_number_prefix(signed char, "-1 1", "%1hhi %hhi", 0, 0, 0, check_char); + test_number_prefix(test, long long, "-1 1", "%1lld %lld", 0, 0, 0, check_ll); + test_number_prefix(test, long, "-1 1", "%1ld %ld", 0, 0, 0, check_long); + test_number_prefix(test, int, "-1 1", "%1d %d", 0, 0, 0, check_int); + test_number_prefix(test, short, "-1 1", "%1hd %hd", 0, 0, 0, check_short); + test_number_prefix(test, signed char, "-1 1", "%1hhd %hhd", 0, 0, 0, check_char); + + test_number_prefix(test, long long, "-1 1", "%1lli %lli", 0, 0, 0, check_ll); + test_number_prefix(test, long, "-1 1", "%1li %li", 0, 0, 0, check_long); + test_number_prefix(test, int, "-1 1", "%1i %i", 0, 0, 0, check_int); + test_number_prefix(test, short, "-1 1", "%1hi %hi", 0, 0, 0, check_short); + test_number_prefix(test, signed char, "-1 1", "%1hhi %hhi", 0, 0, 0, check_char); /* * 0x prefix in a field of width 1: 0 is a valid digit so should * convert. Next field scan starts at the 'x' which isn't a digit so * scan quits with one field converted. */ - test_number_prefix(unsigned long long, "0xA7", "%1llx%llx", 0, 0, 1, check_ull); - test_number_prefix(unsigned long, "0xA7", "%1lx%lx", 0, 0, 1, check_ulong); - test_number_prefix(unsigned int, "0xA7", "%1x%x", 0, 0, 1, check_uint); - test_number_prefix(unsigned short, "0xA7", "%1hx%hx", 0, 0, 1, check_ushort); - test_number_prefix(unsigned char, "0xA7", "%1hhx%hhx", 0, 0, 1, check_uchar); - test_number_prefix(long long, "0xA7", "%1lli%llx", 0, 0, 1, check_ll); - test_number_prefix(long, "0xA7", "%1li%lx", 0, 0, 1, check_long); - test_number_prefix(int, "0xA7", "%1i%x", 0, 0, 1, check_int); - test_number_prefix(short, "0xA7", "%1hi%hx", 0, 0, 1, check_short); - test_number_prefix(char, "0xA7", "%1hhi%hhx", 0, 0, 1, check_char); + test_number_prefix(test, unsigned long long, "0xA7", "%1llx%llx", 0, 0, 1, check_ull); + test_number_prefix(test, unsigned long, "0xA7", "%1lx%lx", 0, 0, 1, check_ulong); + test_number_prefix(test, unsigned int, "0xA7", "%1x%x", 0, 0, 1, check_uint); + test_number_prefix(test, unsigned short, "0xA7", "%1hx%hx", 0, 0, 1, check_ushort); + test_number_prefix(test, unsigned char, "0xA7", "%1hhx%hhx", 0, 0, 1, check_uchar); + test_number_prefix(test, long long, "0xA7", "%1lli%llx", 0, 0, 1, check_ll); + test_number_prefix(test, long, "0xA7", "%1li%lx", 0, 0, 1, check_long); + test_number_prefix(test, int, "0xA7", "%1i%x", 0, 0, 1, check_int); + test_number_prefix(test, short, "0xA7", "%1hi%hx", 0, 0, 1, check_short); + test_number_prefix(test, char, "0xA7", "%1hhi%hhx", 0, 0, 1, check_char); /* * 0x prefix in a field of width 2 using %x conversion: first field * converts to 0. Next field scan starts at the character after "0x". * Both fields will convert. */ - test_number_prefix(unsigned long long, "0xA7", "%2llx%llx", 0, 0xa7, 2, check_ull); - test_number_prefix(unsigned long, "0xA7", "%2lx%lx", 0, 0xa7, 2, check_ulong); - test_number_prefix(unsigned int, "0xA7", "%2x%x", 0, 0xa7, 2, check_uint); - test_number_prefix(unsigned short, "0xA7", "%2hx%hx", 0, 0xa7, 2, check_ushort); - test_number_prefix(unsigned char, "0xA7", "%2hhx%hhx", 0, 0xa7, 2, check_uchar); + test_number_prefix(test, unsigned long long, "0xA7", "%2llx%llx", 0, 0xa7, 2, check_ull); + test_number_prefix(test, unsigned long, "0xA7", "%2lx%lx", 0, 0xa7, 2, check_ulong); + test_number_prefix(test, unsigned int, "0xA7", "%2x%x", 0, 0xa7, 2, check_uint); + test_number_prefix(test, unsigned short, "0xA7", "%2hx%hx", 0, 0xa7, 2, check_ushort); + test_number_prefix(test, unsigned char, "0xA7", "%2hhx%hhx", 0, 0xa7, 2, check_uchar); /* * 0x prefix in a field of width 2 using %i conversion: first field @@ -666,124 +641,112 @@ static void __init numbers_prefix_overflow(void) * which will convert if can be interpreted as decimal but will fail * if it contains any hex digits (since no 0x prefix). */ - test_number_prefix(long long, "0x67", "%2lli%lli", 0, 67, 2, check_ll); - test_number_prefix(long, "0x67", "%2li%li", 0, 67, 2, check_long); - test_number_prefix(int, "0x67", "%2i%i", 0, 67, 2, check_int); - test_number_prefix(short, "0x67", "%2hi%hi", 0, 67, 2, check_short); - test_number_prefix(char, "0x67", "%2hhi%hhi", 0, 67, 2, check_char); - - test_number_prefix(long long, "0xA7", "%2lli%lli", 0, 0, 1, check_ll); - test_number_prefix(long, "0xA7", "%2li%li", 0, 0, 1, check_long); - test_number_prefix(int, "0xA7", "%2i%i", 0, 0, 1, check_int); - test_number_prefix(short, "0xA7", "%2hi%hi", 0, 0, 1, check_short); - test_number_prefix(char, "0xA7", "%2hhi%hhi", 0, 0, 1, check_char); -} - -#define _test_simple_strtoxx(T, fn, gen_fmt, expect, base) \ -do { \ - T got; \ - char *endp; \ - int len; \ - bool fail = false; \ - \ - total_tests++; \ - len = snprintf(test_buffer, BUF_SIZE, gen_fmt, expect); \ - got = (fn)(test_buffer, &endp, base); \ - pr_debug(#fn "(\"%s\", %d) -> " gen_fmt "\n", test_buffer, base, got); \ - if (got != (expect)) { \ - fail = true; \ - pr_warn(#fn "(\"%s\", %d): got " gen_fmt " expected " gen_fmt "\n", \ - test_buffer, base, got, expect); \ - } else if (endp != test_buffer + len) { \ - fail = true; \ - pr_warn(#fn "(\"%s\", %d) startp=0x%px got endp=0x%px expected 0x%px\n", \ - test_buffer, base, test_buffer, \ - test_buffer + len, endp); \ - } \ - \ - if (fail) \ - failed_tests++; \ + test_number_prefix(test, long long, "0x67", "%2lli%lli", 0, 67, 2, check_ll); + test_number_prefix(test, long, "0x67", "%2li%li", 0, 67, 2, check_long); + test_number_prefix(test, int, "0x67", "%2i%i", 0, 67, 2, check_int); + test_number_prefix(test, short, "0x67", "%2hi%hi", 0, 67, 2, check_short); + test_number_prefix(test, char, "0x67", "%2hhi%hhi", 0, 67, 2, check_char); + + test_number_prefix(test, long long, "0xA7", "%2lli%lli", 0, 0, 1, check_ll); + test_number_prefix(test, long, "0xA7", "%2li%li", 0, 0, 1, check_long); + test_number_prefix(test, int, "0xA7", "%2i%i", 0, 0, 1, check_int); + test_number_prefix(test, short, "0xA7", "%2hi%hi", 0, 0, 1, check_short); + test_number_prefix(test, char, "0xA7", "%2hhi%hhi", 0, 0, 1, check_char); +} + +#define _test_simple_strtoxx(test, T, fn, gen_fmt, expect, base) \ +do { \ + T got; \ + char *endp; \ + int len; \ + \ + len = snprintf(test_buffer, BUF_SIZE, gen_fmt, expect); \ + got = (fn)(test_buffer, &endp, base); \ + pr_debug(#fn "(\"%s\", %d) -> " gen_fmt "\n", test_buffer, base, got); \ + KUNIT_EXPECT_EQ_MSG(test, got, expect, #fn "(\"%s\", %d)", test_buffer, base); \ + KUNIT_EXPECT_PTR_EQ_MSG(test, endp, test_buffer + len, \ + #fn "(\"%s\", %d)", test_buffer, base); \ } while (0) -#define test_simple_strtoxx(T, fn, gen_fmt, base) \ +#define test_simple_strtoxx(test, T, fn, gen_fmt, base) \ do { \ int i; \ \ for (i = 0; i < ARRAY_SIZE(numbers); i++) { \ - _test_simple_strtoxx(T, fn, gen_fmt, (T)numbers[i], base); \ + _test_simple_strtoxx(test, T, fn, gen_fmt, (T)numbers[i], base);\ \ if (is_signed_type(T)) \ - _test_simple_strtoxx(T, fn, gen_fmt, \ + _test_simple_strtoxx(test, T, fn, gen_fmt, \ -(T)numbers[i], base); \ } \ } while (0) -static void __init test_simple_strtoull(void) +static void test_simple_strtoull(struct kunit *test) { - test_simple_strtoxx(unsigned long long, simple_strtoull, "%llu", 10); - test_simple_strtoxx(unsigned long long, simple_strtoull, "%llu", 0); - test_simple_strtoxx(unsigned long long, simple_strtoull, "%llx", 16); - test_simple_strtoxx(unsigned long long, simple_strtoull, "0x%llx", 16); - test_simple_strtoxx(unsigned long long, simple_strtoull, "0x%llx", 0); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "%llu", 10); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "%llu", 0); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "%llx", 16); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "0x%llx", 16); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "0x%llx", 0); } -static void __init test_simple_strtoll(void) +static void test_simple_strtoll(struct kunit *test) { - test_simple_strtoxx(long long, simple_strtoll, "%lld", 10); - test_simple_strtoxx(long long, simple_strtoll, "%lld", 0); - test_simple_strtoxx(long long, simple_strtoll, "%llx", 16); - test_simple_strtoxx(long long, simple_strtoll, "0x%llx", 16); - test_simple_strtoxx(long long, simple_strtoll, "0x%llx", 0); + test_simple_strtoxx(test, long long, simple_strtoll, "%lld", 10); + test_simple_strtoxx(test, long long, simple_strtoll, "%lld", 0); + test_simple_strtoxx(test, long long, simple_strtoll, "%llx", 16); + test_simple_strtoxx(test, long long, simple_strtoll, "0x%llx", 16); + test_simple_strtoxx(test, long long, simple_strtoll, "0x%llx", 0); } -static void __init test_simple_strtoul(void) +static void test_simple_strtoul(struct kunit *test) { - test_simple_strtoxx(unsigned long, simple_strtoul, "%lu", 10); - test_simple_strtoxx(unsigned long, simple_strtoul, "%lu", 0); - test_simple_strtoxx(unsigned long, simple_strtoul, "%lx", 16); - test_simple_strtoxx(unsigned long, simple_strtoul, "0x%lx", 16); - test_simple_strtoxx(unsigned long, simple_strtoul, "0x%lx", 0); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "%lu", 10); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "%lu", 0); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "%lx", 16); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "0x%lx", 16); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "0x%lx", 0); } -static void __init test_simple_strtol(void) +static void test_simple_strtol(struct kunit *test) { - test_simple_strtoxx(long, simple_strtol, "%ld", 10); - test_simple_strtoxx(long, simple_strtol, "%ld", 0); - test_simple_strtoxx(long, simple_strtol, "%lx", 16); - test_simple_strtoxx(long, simple_strtol, "0x%lx", 16); - test_simple_strtoxx(long, simple_strtol, "0x%lx", 0); + test_simple_strtoxx(test, long, simple_strtol, "%ld", 10); + test_simple_strtoxx(test, long, simple_strtol, "%ld", 0); + test_simple_strtoxx(test, long, simple_strtol, "%lx", 16); + test_simple_strtoxx(test, long, simple_strtol, "0x%lx", 16); + test_simple_strtoxx(test, long, simple_strtol, "0x%lx", 0); } /* Selection of common delimiters/separators between numbers in a string. */ -static const char * const number_delimiters[] __initconst = { +static const char * const number_delimiters[] = { " ", ":", ",", "-", "/", }; -static void __init test_numbers(void) +static void test_numbers(struct kunit *test) { int i; /* String containing only one number. */ - numbers_simple(); + numbers_simple(test); /* String with multiple numbers separated by delimiter. */ for (i = 0; i < ARRAY_SIZE(number_delimiters); i++) { - numbers_list(number_delimiters[i]); + numbers_list(test, number_delimiters[i]); /* Field width may be longer than actual field digits. */ - numbers_list_field_width_typemax(number_delimiters[i]); + numbers_list_field_width_typemax(test, number_delimiters[i]); /* Each field width exactly length of actual field digits. */ - numbers_list_field_width_val_width(number_delimiters[i]); + numbers_list_field_width_val_width(test, number_delimiters[i]); } /* Slice continuous sequence of digits using field widths. */ - numbers_slice(); + numbers_slice(test); - numbers_prefix_overflow(); + numbers_prefix_overflow(test); } -static void __init selftest(void) +static void scanf_test(struct kunit *test) { test_buffer = kmalloc(BUF_SIZE, GFP_KERNEL); if (!test_buffer) @@ -797,18 +760,29 @@ static void __init selftest(void) prandom_seed_state(&rnd_state, 3141592653589793238ULL); - test_numbers(); + test_numbers(test); - test_simple_strtoull(); - test_simple_strtoll(); - test_simple_strtoul(); - test_simple_strtol(); + test_simple_strtoull(test); + test_simple_strtoll(test); + test_simple_strtoul(test); + test_simple_strtol(test); kfree(fmt_buffer); kfree(test_buffer); } -KSTM_MODULE_LOADERS(test_scanf); +static struct kunit_case scanf_test_cases[] = { + KUNIT_CASE(scanf_test), + {} +}; + +static struct kunit_suite scanf_test_suite = { + .name = "scanf", + .test_cases = scanf_test_cases, +}; + +kunit_test_suite(scanf_test_suite); + MODULE_AUTHOR("Richard Fitzgerald <rf(a)opensource.cirrus.com>"); MODULE_DESCRIPTION("Test cases for sscanf facility"); MODULE_LICENSE("GPL v2"); diff --git a/tools/testing/selftests/lib/Makefile b/tools/testing/selftests/lib/Makefile index c52fe3ad8e98..4afda556151f 100644 --- a/tools/testing/selftests/lib/Makefile +++ b/tools/testing/selftests/lib/Makefile @@ -4,5 +4,5 @@ # No binaries, but make sure arg-less "make" doesn't trigger "run_tests" all: -TEST_PROGS := printf.sh bitmap.sh prime_numbers.sh scanf.sh +TEST_PROGS := printf.sh bitmap.sh prime_numbers.sh include ../lib.mk diff --git a/tools/testing/selftests/lib/config b/tools/testing/selftests/lib/config index dc15aba8d0a3..80b55a504868 100644 --- a/tools/testing/selftests/lib/config +++ b/tools/testing/selftests/lib/config @@ -1,5 +1,4 @@ CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_PRIME_NUMBERS=m CONFIG_TEST_BITOPS=m diff --git a/tools/testing/selftests/lib/scanf.sh b/tools/testing/selftests/lib/scanf.sh deleted file mode 100755 index b59b8ba561c3..000000000000 --- a/tools/testing/selftests/lib/scanf.sh +++ /dev/null @@ -1,4 +0,0 @@ -#!/bin/sh -# SPDX-License-Identifier: GPL-2.0 -# Tests the scanf infrastructure using test_scanf kernel module. -$(dirname $0)/../kselftest/module.sh "scanf" test_scanf --- base-commit: 18fe18c99c8d90d77c7ed6b42f48fa5b4e5c99c3 change-id: 20250131-scanf-kunit-convert-f70dc33bb34c Best regards, -- Tamir Duberstein <tamird(a)gmail.com>

3 months

2
5
0 0

[PATCH net-next v3 0/2] netdevgenl: Add an xsk attribute to queues

by Joe Damato

Greetings: Welcome to v3. No functional changes, see changelog below. This is an attempt to followup on something Jakub asked me about [1], adding an xsk attribute to queues and more clearly documenting which queues are linked to NAPIs... After the RFC [2], Jakub suggested creating an empty nest for queues which have a pool, so I've adjusted this version to work that way. The nest can be extended in the future to express attributes about XSK as needed. Queues which are not used for AF_XDP do not have the xsk attribute present. I've run the included test on: - my mlx5 machine (via NETIF=) - without setting NETIF And the test seems to pass in both cases. Thanks, Joe [1]: https://lore.kernel.org/netdev/20250113143109.60afa59a@kernel.org/ [2]: https://lore.kernel.org/netdev/20250129172431.65773-1-jdamato@fastly.com/ v3: - Change comment format in patch 2 to avoid kdoc warnings. No other changes. v2: https://lore.kernel.org/all/20250203185828.19334-1-jdamato@fastly.com/ - Switched from RFC to actual submission now that net-next is open - Adjusted patch 1 to include an empty nest as suggested by Jakub - Adjusted patch 2 to update the test based on changes to patch 1, and to incorporate some Python feedback from Jakub :) rfc: https://lore.kernel.org/netdev/20250129172431.65773-1-jdamato@fastly.com/ Joe Damato (2): netdev-genl: Add an XSK attribute to queues selftests: drv-net: Test queue xsk attribute Documentation/netlink/specs/netdev.yaml | 13 ++- include/uapi/linux/netdev.h | 6 ++ net/core/netdev-genl.c | 11 +++ tools/include/uapi/linux/netdev.h | 6 ++ .../testing/selftests/drivers/net/.gitignore | 2 + tools/testing/selftests/drivers/net/Makefile | 3 + tools/testing/selftests/drivers/net/queues.py | 35 +++++++- .../selftests/drivers/net/xdp_helper.c | 89 +++++++++++++++++++ 8 files changed, 162 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/drivers/net/.gitignore create mode 100644 tools/testing/selftests/drivers/net/xdp_helper.c base-commit: c2933b2befe25309f4c5cfbea0ca80909735fd76 -- 2.43.0

3 months

1
1
0 0

Previous Message

by Allen Cheng

Good day, I sent you a message a few hours ago but no reply yet, or you didn't receive it? Kindly read my letter and reply back. I want to make an inquiry Thanks. Dr.Allen Cheng Human Resource Manager | Product Research Assistant FC Industrial Laboratories Ltd

3 months

1
0
0 0

[PATCH] selftests: net: fix grammar in reuseaddr_ports_exhausted.c log message

by Pranav Tyagi

This patch fixes a grammatical error in a test log message in reuseaddr_ports_exhausted.c for better clarity as a part of lfx application tasks Signed-off-by: Pranav Tyagi <pranav.tyagi03(a)gmail.com> --- tools/testing/selftests/net/reuseaddr_ports_exhausted.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c index 066efd30e294..7b9bf8a7bbe1 100644 --- a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c +++ b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c @@ -112,7 +112,7 @@ TEST(reuseaddr_ports_exhausted_reusable_same_euid) ASSERT_NE(-1, fd[0]) TH_LOG("failed to bind."); if (opts->reuseport[0] && opts->reuseport[1]) { - EXPECT_EQ(-1, fd[1]) TH_LOG("should fail to bind because both sockets succeed to be listened."); + EXPECT_EQ(-1, fd[1]) TH_LOG("should fail to bind because both sockets successfully listened."); } else { EXPECT_NE(-1, fd[1]) TH_LOG("should succeed to bind to connect to different destinations."); } -- 2.47.1

3 months

1
0
0 0

[PATCH] KVM: selftests: Fix spelling mistake "initally" -> "initially"

by Colin Ian King

There is a spelling mistake in a literal string and in the function test_get_inital_dirty. Fix them. Signed-off-by: Colin Ian King <colin.i.king(a)gmail.com> --- tools/testing/selftests/kvm/s390/cmma_test.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/kvm/s390/cmma_test.c b/tools/testing/selftests/kvm/s390/cmma_test.c index e32dd59703a0..85cc8c18d6e7 100644 --- a/tools/testing/selftests/kvm/s390/cmma_test.c +++ b/tools/testing/selftests/kvm/s390/cmma_test.c @@ -444,7 +444,7 @@ static void assert_no_pages_cmma_dirty(struct kvm_vm *vm) ); } -static void test_get_inital_dirty(void) +static void test_get_initial_dirty(void) { struct kvm_vm *vm = create_vm_two_memslots(); struct kvm_vcpu *vcpu; @@ -651,7 +651,7 @@ struct testdef { } testlist[] = { { "migration mode and dirty tracking", test_migration_mode }, { "GET_CMMA_BITS: basic calls", test_get_cmma_basic }, - { "GET_CMMA_BITS: all pages are dirty initally", test_get_inital_dirty }, + { "GET_CMMA_BITS: all pages are dirty initially", test_get_initial_dirty }, { "GET_CMMA_BITS: holes are skipped", test_get_skip_holes }, }; -- 2.47.2

3 months

3
2
0 0

[PATCH bpf-next v7 0/5] xsk: TX metadata Launch Time support

by Song Yoong Siang

This series expands the XDP TX metadata framework to allow user applications to pass per packet 64-bit launch time directly to the kernel driver, requesting launch time hardware offload support. The XDP TX metadata framework will not perform any clock conversion or packet reordering. Please note that the role of Tx metadata is just to pass the launch time, not to enable the offload feature. Users will need to enable the launch time hardware offload feature of the device by using the respective command, such as the tc-etf command. Although some devices use the tc-etf command to enable their launch time hardware offload feature, xsk packets will not go through the etf qdisc. Therefore, in my opinion, the launch time should always be based on the PTP Hardware Clock (PHC). Thus, i did not include a clock ID to indicate the clock source. To simplify the test steps, I modified the xdp_hw_metadata bpf self-test tool in such a way that it will set the launch time based on the offset provided by the user and the value of the Receive Hardware Timestamp, which is against the PHC. This will eliminate the need to discipline System Clock with the PHC and then use clock_gettime() to get the time. Please note that AF_XDP lacks a feedback mechanism to inform the application if the requested launch time is invalid. So, users are expected to familiar with the horizon of the launch time of the device they use and not request a launch time that is beyond the horizon. Otherwise, the driver might interpret the launch time incorrectly and react wrongly. For stmmac and igc, where modulo computation is used, a launch time larger than the horizon will cause the device to transmit the packet earlier that the requested launch time. Although there is no feedback mechanism for the launch time request for now, user still can check whether the requested launch time is working or not, by requesting the Transmit Completion Hardware Timestamp. V7: - split the refactoring code of igc empty packet insertion into a separate commit (Faizal) - add explanation on why the value "4" is used as igc transmit budget (Faizal) - perform a stress test by sending 1000 packets with 10ms interval and launch time set to 500us in the future (Faizal & Yong Liang) V6: https://lore.kernel.org/netdev/20250116155350.555374-1-yoong.siang.song@int… - fix selftest build errors by using asprintf() and realloc(), instead of managing the buffer sizes manually (Daniel, Stanislav) V5: https://lore.kernel.org/netdev/20250114152718.120588-1-yoong.siang.song@int… - change netdev feature name from tx-launch-time to tx-launch-time-fifo to explicitly state the FIFO behaviour (Stanislav) - improve the looping of xdp_hw_metadata app to wait for packet tx completion to be more readable by using clock_gettime() (Stanislav) - add launch time setup steps into xdp_hw_metadata app (Stanislav) V4: https://lore.kernel.org/netdev/20250106135506.9687-1-yoong.siang.song@intel… - added XDP launch time support to the igc driver (Jesper & Florian) - added per-driver launch time limitation on xsk-tx-metadata.rst (Jesper) - added explanation on FIFO behavior on xsk-tx-metadata.rst (Jakub) - added step to enable launch time in the commit message (Jesper & Willem) - explicitly documented the type of launch_time and which clock source it is against (Willem) V3: https://lore.kernel.org/netdev/20231203165129.1740512-1-yoong.siang.song@in… - renamed to use launch time (Jesper & Willem) - changed the default launch time in xdp_hw_metadata apps from 1s to 0.1s because some NICs do not support such a large future time. V2: https://lore.kernel.org/netdev/20231201062421.1074768-1-yoong.siang.song@in… - renamed to use Earliest TxTime First (Willem) - renamed to use txtime (Willem) V1: https://lore.kernel.org/netdev/20231130162028.852006-1-yoong.siang.song@int… Song Yoong Siang (5): xsk: Add launch time hardware offload support to XDP Tx metadata selftests/bpf: Add launch time request to xdp_hw_metadata net: stmmac: Add launch time support to XDP ZC igc: Refactor empty packet insertion into a reusable function igc: Add launch time support to XDP ZC Documentation/netlink/specs/netdev.yaml | 4 + Documentation/networking/xsk-tx-metadata.rst | 62 +++++++ drivers/net/ethernet/intel/igc/igc_main.c | 84 ++++++--- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 + .../net/ethernet/stmicro/stmmac/stmmac_main.c | 13 ++ include/net/xdp_sock.h | 10 ++ include/net/xdp_sock_drv.h | 1 + include/uapi/linux/if_xdp.h | 10 ++ include/uapi/linux/netdev.h | 3 + net/core/netdev-genl.c | 2 + net/xdp/xsk.c | 3 + tools/include/uapi/linux/if_xdp.h | 10 ++ tools/include/uapi/linux/netdev.h | 3 + tools/testing/selftests/bpf/xdp_hw_metadata.c | 168 +++++++++++++++++- 14 files changed, 348 insertions(+), 27 deletions(-) -- 2.34.1

3 months

5
18
0 0

[PATCH Linux-6.12.y 1/1] selftests/mm: build with -O2

by Yifei Liu

From: Kevin Brodsky <kevin.brodsky(a)arm.com> [ Upstream commit 46036188ea1f5266df23a6149dea0df1c77cd1c7 ] The mm kselftests are currently built with no optimisation (-O0). It's unclear why, and besides being obviously suboptimal, this also prevents the pkeys tests from working as intended. Let's build all the tests with -O2. [kevin.brodsky(a)arm.com: silence unused-result warnings] Link: https://lkml.kernel.org/r/20250107170110.2819685-1-kevin.brodsky@arm.com Link: https://lkml.kernel.org/r/20241209095019.1732120-6-kevin.brodsky@arm.com Signed-off-by: Kevin Brodsky <kevin.brodsky(a)arm.com> Cc: Aruna Ramakrishna <aruna.ramakrishna(a)oracle.com> Cc: Catalin Marinas <catalin.marinas(a)arm.com> Cc: Dave Hansen <dave.hansen(a)linux.intel.com> Cc: Joey Gouly <joey.gouly(a)arm.com> Cc: Keith Lucas <keith.lucas(a)oracle.com> Cc: Ryan Roberts <ryan.roberts(a)arm.com> Cc: Shuah Khan <shuah(a)kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> (cherry picked from commit 46036188ea1f5266df23a6149dea0df1c77cd1c7) [Yifei: This commit also fix the failure of pkey_sighandler_tests_64, which is also in linux-6.12.y, thus backport this commit] Signed-off-by: Yifei Liu <yifei.l.liu(a)oracle.com> --- tools/testing/selftests/mm/Makefile | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile index 02e1204971b0..c0138cb19705 100644 --- a/tools/testing/selftests/mm/Makefile +++ b/tools/testing/selftests/mm/Makefile @@ -33,9 +33,16 @@ endif # LDLIBS. MAKEFLAGS += --no-builtin-rules -CFLAGS = -Wall -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) +CFLAGS = -Wall -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) LDLIBS = -lrt -lpthread -lm +# Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is +# automatically enabled at -O1 or above. This triggers various unused-result +# warnings where functions such as read() or write() are called and their +# return value is not checked. Disable _FORTIFY_SOURCE to silence those +# warnings. +CFLAGS += -U_FORTIFY_SOURCE + TEST_GEN_FILES = cow TEST_GEN_FILES += compaction_test TEST_GEN_FILES += gup_longterm -- 2.46.0

3 months

2
1
0 0

[PATCH] bpf: Fix mix-up of 4096 and page size.

by Saket Kumar Bhaskar

For platforms on powerpc architecture with a default page size greater than 4096, there was an inconsistency in fragment size calculation. This caused the BPF selftest xdp_adjust_tail/xdp_adjust_frags_tail_grow to fail on powerpc. The issue occurred because the fragment buffer size in bpf_prog_test_run_xdp() was set to 4096, while the actual data size in the fragment within the shared skb was checked against PAGE_SIZE (65536 on powerpc) in min_t, causing it to exceed 4096 and be set accordingly. This discrepancy led to an overflow when bpf_xdp_frags_increase_tail() checked for tailroom, as skb_frag_size(frag) could be greater than rxq->frag_size (when PAGE_SIZE > 4096). This commit updates the page size references to 4096 to ensure consistency and prevent overflow issues in fragment size calculations. Fixes: 1c1949982524 ("bpf: introduce frags support to bpf_prog_test_run_xdp()") Signed-off-by: Saket Kumar Bhaskar <skb99(a)linux.ibm.com> --- net/bpf/test_run.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c index 501ec4249..eb5476184 100644 --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -124,7 +124,7 @@ struct xdp_test_data { * must be updated accordingly this gets changed, otherwise BPF selftests * will fail. */ -#define TEST_XDP_FRAME_SIZE (PAGE_SIZE - sizeof(struct xdp_page_head)) +#define TEST_XDP_FRAME_SIZE (4096 - sizeof(struct xdp_page_head)) #define TEST_XDP_MAX_BATCH 256 static void xdp_test_run_init_page(netmem_ref netmem, void *arg) @@ -660,7 +660,7 @@ static void *bpf_test_init(const union bpf_attr *kattr, u32 user_size, void __user *data_in = u64_to_user_ptr(kattr->test.data_in); void *data; - if (size < ETH_HLEN || size > PAGE_SIZE - headroom - tailroom) + if (size < ETH_HLEN || size > 4096 - headroom - tailroom) return ERR_PTR(-EINVAL); if (user_size > size) @@ -1297,7 +1297,7 @@ int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr, frag = &sinfo->frags[sinfo->nr_frags++]; data_len = min_t(u32, kattr->test.data_size_in - size, - PAGE_SIZE); + 4096); skb_frag_fill_page_desc(frag, page, 0, data_len); if (copy_from_user(page_address(page), data_in + size, -- 2.43.5

3 months

3
4
0 0

[PATCH][next] KVM: selftests: Fix spelling mistake "initally" -> "initially"

by Colin Ian King

There is a spelling mistake in a literal string. Fix it. Signed-off-by: Colin Ian King <colin.i.king(a)gmail.com> --- tools/testing/selftests/kvm/s390/cmma_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/s390/cmma_test.c b/tools/testing/selftests/kvm/s390/cmma_test.c index e32dd59703a0..7fbbe8b912b6 100644 --- a/tools/testing/selftests/kvm/s390/cmma_test.c +++ b/tools/testing/selftests/kvm/s390/cmma_test.c @@ -651,7 +651,7 @@ struct testdef { } testlist[] = { { "migration mode and dirty tracking", test_migration_mode }, { "GET_CMMA_BITS: basic calls", test_get_cmma_basic }, - { "GET_CMMA_BITS: all pages are dirty initally", test_get_inital_dirty }, + { "GET_CMMA_BITS: all pages are dirty initially", test_get_inital_dirty }, { "GET_CMMA_BITS: holes are skipped", test_get_skip_holes }, }; -- 2.47.2

3 months

2
1
0 0

[PATCH net-next v2 0/2] netdevgenl: Add an xsk attribute to queues

by Joe Damato

Greetings: This is an attempt to followup on something Jakub asked me about [1], adding an xsk attribute to queues and more clearly documenting which queues are linked to NAPIs... After the RFC [2], Jakub suggested creating an empty nest for queues which have a pool, so I've adjusted this version to work that way. The nest can be extended in the future to express attributes about XSK as needed. Queues which are not used for AF_XDP do not have the xsk attribute present. I've run the included test on: - my mlx5 machine (via NETIF=) - without setting NETIF And the test seems to pass in both cases. Thanks, Joe [1]: https://lore.kernel.org/netdev/20250113143109.60afa59a@kernel.org/ [2]: https://lore.kernel.org/netdev/20250129172431.65773-1-jdamato@fastly.com/ v2: - Switched from RFC to actual submission now that net-next is open - Adjusted patch 1 to include an empty nest as suggested by Jakub - Adjusted patch 2 to update the test based on changes to patch 1, and to incorporate some Python feedback from Jakub :) rfc: https://lore.kernel.org/netdev/20250129172431.65773-1-jdamato@fastly.com/ Joe Damato (2): netdev-genl: Add an XSK attribute to queues selftests: drv-net: Test queue xsk attribute Documentation/netlink/specs/netdev.yaml | 13 ++- include/uapi/linux/netdev.h | 6 ++ net/core/netdev-genl.c | 11 +++ tools/include/uapi/linux/netdev.h | 6 ++ .../testing/selftests/drivers/net/.gitignore | 2 + tools/testing/selftests/drivers/net/Makefile | 3 + tools/testing/selftests/drivers/net/queues.py | 35 +++++++- .../selftests/drivers/net/xdp_helper.c | 90 +++++++++++++++++++ 8 files changed, 163 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/drivers/net/.gitignore create mode 100644 tools/testing/selftests/drivers/net/xdp_helper.c base-commit: c2933b2befe25309f4c5cfbea0ca80909735fd76 -- 2.25.1

3 months

2
2
0 0

[PATCH AUTOSEL 6.1 2/2] selftests: gpio: gpio-sim: Fix missing chip disablements

by Sasha Levin

From: Koichiro Den <koichiro.den(a)canonical.com> [ Upstream commit f8524ac33cd452aef5384504b3264db6039a455e ] Since upstream commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an instantiated device depends on"), rmdir for an active virtual devices been prohibited. Update gpio-sim selftest to align with the change. Reported-by: kernel test robot <oliver.sang(a)intel.com> Closes: https://lore.kernel.org/oe-lkp/202501221006.a1ca5dfa-lkp@intel.com Signed-off-by: Koichiro Den <koichiro.den(a)canonical.com> Link: https://lore.kernel.org/r/20250122043309.304621-1-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/gpio/gpio-sim.sh | 31 +++++++++++++++++++----- 1 file changed, 25 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/gpio/gpio-sim.sh b/tools/testing/selftests/gpio/gpio-sim.sh index bf67b23ed29ac..46101a800bebf 100755 --- a/tools/testing/selftests/gpio/gpio-sim.sh +++ b/tools/testing/selftests/gpio/gpio-sim.sh @@ -46,12 +46,6 @@ remove_chip() { rmdir $CONFIGFS_DIR/$CHIP || fail "Unable to remove the chip" } -configfs_cleanup() { - for CHIP in `ls $CONFIGFS_DIR/`; do - remove_chip $CHIP - done -} - create_chip() { local CHIP=$1 @@ -105,6 +99,13 @@ disable_chip() { echo 0 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to disable the chip" } +configfs_cleanup() { + for CHIP in `ls $CONFIGFS_DIR/`; do + disable_chip $CHIP + remove_chip $CHIP + done +} + configfs_chip_name() { local CHIP=$1 local BANK=$2 @@ -181,6 +182,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/bank/chip_name` || fail "chip_name doesn't work" +disable_chip chip remove_chip chip echo "1.2. chip_name returns 'none' if the chip is still pending" @@ -195,6 +197,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/dev_name` || fail "dev_name doesn't work" +disable_chip chip remove_chip chip echo "2. Creating and configuring simulated chips" @@ -204,6 +207,7 @@ create_chip chip create_bank chip bank enable_chip chip test "`get_chip_num_lines chip bank`" = "1" || fail "default number of lines is not 1" +disable_chip chip remove_chip chip echo "2.2. Number of lines can be specified" @@ -212,6 +216,7 @@ create_bank chip bank set_num_lines chip bank 16 enable_chip chip test "`get_chip_num_lines chip bank`" = "16" || fail "number of lines is not 16" +disable_chip chip remove_chip chip echo "2.3. Label can be set" @@ -220,6 +225,7 @@ create_bank chip bank set_label chip bank foobar enable_chip chip test "`get_chip_label chip bank`" = "foobar" || fail "label is incorrect" +disable_chip chip remove_chip chip echo "2.4. Label can be left empty" @@ -227,6 +233,7 @@ create_chip chip create_bank chip bank enable_chip chip test -z "`cat $CONFIGFS_DIR/chip/bank/label`" || fail "label is not empty" +disable_chip chip remove_chip chip echo "2.5. Line names can be configured" @@ -238,6 +245,7 @@ set_line_name chip bank 2 bar enable_chip chip test "`get_line_name chip bank 0`" = "foo" || fail "line name is incorrect" test "`get_line_name chip bank 2`" = "bar" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.6. Line config can remain unused if offset is greater than number of lines" @@ -248,6 +256,7 @@ set_line_name chip bank 5 foobar enable_chip chip test "`get_line_name chip bank 0`" = "" || fail "line name is incorrect" test "`get_line_name chip bank 1`" = "" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.7. Line configfs directory names are sanitized" @@ -267,6 +276,7 @@ for CHIP in $CHIPS; do enable_chip $CHIP done for CHIP in $CHIPS; do + disable_chip $CHIP remove_chip $CHIP done @@ -278,6 +288,7 @@ echo foobar > $CONFIGFS_DIR/chip/bank/label 2> /dev/null && \ fail "Setting label of a live chip should fail" echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> /dev/null && \ fail "Setting number of lines of a live chip should fail" +disable_chip chip remove_chip chip echo "2.10. Can't create line items when chip is live" @@ -285,6 +296,7 @@ create_chip chip create_bank chip bank enable_chip chip mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/null && fail "Creating line item should fail" +disable_chip chip remove_chip chip echo "2.11. Probe errors are propagated to user-space" @@ -316,6 +328,7 @@ mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog enable_chip chip $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 4 2> /dev/null && \ fail "Setting the value of a hogged line shouldn't succeed" +disable_chip chip remove_chip chip echo "3. Controlling simulated chips" @@ -331,6 +344,7 @@ test "$?" = "1" || fail "pull set incorrectly" sysfs_set_pull chip bank 0 pull-down $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 1 test "$?" = "0" || fail "pull set incorrectly" +disable_chip chip remove_chip chip echo "3.2. Pull can be read from sysfs" @@ -344,6 +358,7 @@ SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull test `cat $SYSFS_PATH` = "pull-down" || fail "reading the pull failed" sysfs_set_pull chip bank 0 pull-up test `cat $SYSFS_PATH` = "pull-up" || fail "reading the pull failed" +disable_chip chip remove_chip chip echo "3.3. Incorrect input in sysfs is rejected" @@ -355,6 +370,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull" echo foobar > $SYSFS_PATH 2> /dev/null && fail "invalid input not detected" +disable_chip chip remove_chip chip echo "3.4. Can't write to value" @@ -365,6 +381,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" echo 1 > $SYSFS_PATH 2> /dev/null && fail "writing to 'value' succeeded unexpectedly" +disable_chip chip remove_chip chip echo "4. Simulated GPIO chips are functional" @@ -382,6 +399,7 @@ $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 0 & sleep 0.1 # FIXME Any better way? test `cat $SYSFS_PATH` = "1" || fail "incorrect value read from sysfs" kill $! +disable_chip chip remove_chip chip echo "4.2. Bias settings work correctly" @@ -394,6 +412,7 @@ CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" $BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`configfs_chip_name chip bank` 0 test `cat $SYSFS_PATH` = "1" || fail "bias setting does not work" +disable_chip chip remove_chip chip echo "GPIO $MODULE test PASS" -- 2.39.5

3 months

1
0
0 0

[PATCH AUTOSEL 6.6 2/3] selftests: gpio: gpio-sim: Fix missing chip disablements

by Sasha Levin

From: Koichiro Den <koichiro.den(a)canonical.com> [ Upstream commit f8524ac33cd452aef5384504b3264db6039a455e ] Since upstream commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an instantiated device depends on"), rmdir for an active virtual devices been prohibited. Update gpio-sim selftest to align with the change. Reported-by: kernel test robot <oliver.sang(a)intel.com> Closes: https://lore.kernel.org/oe-lkp/202501221006.a1ca5dfa-lkp@intel.com Signed-off-by: Koichiro Den <koichiro.den(a)canonical.com> Link: https://lore.kernel.org/r/20250122043309.304621-1-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/gpio/gpio-sim.sh | 31 +++++++++++++++++++----- 1 file changed, 25 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/gpio/gpio-sim.sh b/tools/testing/selftests/gpio/gpio-sim.sh index 6fb66a687f173..bbc29ed9c60a9 100755 --- a/tools/testing/selftests/gpio/gpio-sim.sh +++ b/tools/testing/selftests/gpio/gpio-sim.sh @@ -46,12 +46,6 @@ remove_chip() { rmdir $CONFIGFS_DIR/$CHIP || fail "Unable to remove the chip" } -configfs_cleanup() { - for CHIP in `ls $CONFIGFS_DIR/`; do - remove_chip $CHIP - done -} - create_chip() { local CHIP=$1 @@ -105,6 +99,13 @@ disable_chip() { echo 0 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to disable the chip" } +configfs_cleanup() { + for CHIP in `ls $CONFIGFS_DIR/`; do + disable_chip $CHIP + remove_chip $CHIP + done +} + configfs_chip_name() { local CHIP=$1 local BANK=$2 @@ -181,6 +182,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/bank/chip_name` || fail "chip_name doesn't work" +disable_chip chip remove_chip chip echo "1.2. chip_name returns 'none' if the chip is still pending" @@ -195,6 +197,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/dev_name` || fail "dev_name doesn't work" +disable_chip chip remove_chip chip echo "2. Creating and configuring simulated chips" @@ -204,6 +207,7 @@ create_chip chip create_bank chip bank enable_chip chip test "`get_chip_num_lines chip bank`" = "1" || fail "default number of lines is not 1" +disable_chip chip remove_chip chip echo "2.2. Number of lines can be specified" @@ -212,6 +216,7 @@ create_bank chip bank set_num_lines chip bank 16 enable_chip chip test "`get_chip_num_lines chip bank`" = "16" || fail "number of lines is not 16" +disable_chip chip remove_chip chip echo "2.3. Label can be set" @@ -220,6 +225,7 @@ create_bank chip bank set_label chip bank foobar enable_chip chip test "`get_chip_label chip bank`" = "foobar" || fail "label is incorrect" +disable_chip chip remove_chip chip echo "2.4. Label can be left empty" @@ -227,6 +233,7 @@ create_chip chip create_bank chip bank enable_chip chip test -z "`cat $CONFIGFS_DIR/chip/bank/label`" || fail "label is not empty" +disable_chip chip remove_chip chip echo "2.5. Line names can be configured" @@ -238,6 +245,7 @@ set_line_name chip bank 2 bar enable_chip chip test "`get_line_name chip bank 0`" = "foo" || fail "line name is incorrect" test "`get_line_name chip bank 2`" = "bar" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.6. Line config can remain unused if offset is greater than number of lines" @@ -248,6 +256,7 @@ set_line_name chip bank 5 foobar enable_chip chip test "`get_line_name chip bank 0`" = "" || fail "line name is incorrect" test "`get_line_name chip bank 1`" = "" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.7. Line configfs directory names are sanitized" @@ -267,6 +276,7 @@ for CHIP in $CHIPS; do enable_chip $CHIP done for CHIP in $CHIPS; do + disable_chip $CHIP remove_chip $CHIP done @@ -278,6 +288,7 @@ echo foobar > $CONFIGFS_DIR/chip/bank/label 2> /dev/null && \ fail "Setting label of a live chip should fail" echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> /dev/null && \ fail "Setting number of lines of a live chip should fail" +disable_chip chip remove_chip chip echo "2.10. Can't create line items when chip is live" @@ -285,6 +296,7 @@ create_chip chip create_bank chip bank enable_chip chip mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/null && fail "Creating line item should fail" +disable_chip chip remove_chip chip echo "2.11. Probe errors are propagated to user-space" @@ -316,6 +328,7 @@ mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog enable_chip chip $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 4 2> /dev/null && \ fail "Setting the value of a hogged line shouldn't succeed" +disable_chip chip remove_chip chip echo "3. Controlling simulated chips" @@ -331,6 +344,7 @@ test "$?" = "1" || fail "pull set incorrectly" sysfs_set_pull chip bank 0 pull-down $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 1 test "$?" = "0" || fail "pull set incorrectly" +disable_chip chip remove_chip chip echo "3.2. Pull can be read from sysfs" @@ -344,6 +358,7 @@ SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull test `cat $SYSFS_PATH` = "pull-down" || fail "reading the pull failed" sysfs_set_pull chip bank 0 pull-up test `cat $SYSFS_PATH` = "pull-up" || fail "reading the pull failed" +disable_chip chip remove_chip chip echo "3.3. Incorrect input in sysfs is rejected" @@ -355,6 +370,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull" echo foobar > $SYSFS_PATH 2> /dev/null && fail "invalid input not detected" +disable_chip chip remove_chip chip echo "3.4. Can't write to value" @@ -365,6 +381,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" echo 1 > $SYSFS_PATH 2> /dev/null && fail "writing to 'value' succeeded unexpectedly" +disable_chip chip remove_chip chip echo "4. Simulated GPIO chips are functional" @@ -382,6 +399,7 @@ $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 0 & sleep 0.1 # FIXME Any better way? test `cat $SYSFS_PATH` = "1" || fail "incorrect value read from sysfs" kill $! +disable_chip chip remove_chip chip echo "4.2. Bias settings work correctly" @@ -394,6 +412,7 @@ CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" $BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`configfs_chip_name chip bank` 0 test `cat $SYSFS_PATH` = "1" || fail "bias setting does not work" +disable_chip chip remove_chip chip echo "GPIO $MODULE test PASS" -- 2.39.5

3 months

1
0
0 0

[PATCH AUTOSEL 6.12 3/4] selftests: gpio: gpio-sim: Fix missing chip disablements

by Sasha Levin

From: Koichiro Den <koichiro.den(a)canonical.com> [ Upstream commit f8524ac33cd452aef5384504b3264db6039a455e ] Since upstream commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an instantiated device depends on"), rmdir for an active virtual devices been prohibited. Update gpio-sim selftest to align with the change. Reported-by: kernel test robot <oliver.sang(a)intel.com> Closes: https://lore.kernel.org/oe-lkp/202501221006.a1ca5dfa-lkp@intel.com Signed-off-by: Koichiro Den <koichiro.den(a)canonical.com> Link: https://lore.kernel.org/r/20250122043309.304621-1-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/gpio/gpio-sim.sh | 31 +++++++++++++++++++----- 1 file changed, 25 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/gpio/gpio-sim.sh b/tools/testing/selftests/gpio/gpio-sim.sh index 6fb66a687f173..bbc29ed9c60a9 100755 --- a/tools/testing/selftests/gpio/gpio-sim.sh +++ b/tools/testing/selftests/gpio/gpio-sim.sh @@ -46,12 +46,6 @@ remove_chip() { rmdir $CONFIGFS_DIR/$CHIP || fail "Unable to remove the chip" } -configfs_cleanup() { - for CHIP in `ls $CONFIGFS_DIR/`; do - remove_chip $CHIP - done -} - create_chip() { local CHIP=$1 @@ -105,6 +99,13 @@ disable_chip() { echo 0 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to disable the chip" } +configfs_cleanup() { + for CHIP in `ls $CONFIGFS_DIR/`; do + disable_chip $CHIP + remove_chip $CHIP + done +} + configfs_chip_name() { local CHIP=$1 local BANK=$2 @@ -181,6 +182,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/bank/chip_name` || fail "chip_name doesn't work" +disable_chip chip remove_chip chip echo "1.2. chip_name returns 'none' if the chip is still pending" @@ -195,6 +197,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/dev_name` || fail "dev_name doesn't work" +disable_chip chip remove_chip chip echo "2. Creating and configuring simulated chips" @@ -204,6 +207,7 @@ create_chip chip create_bank chip bank enable_chip chip test "`get_chip_num_lines chip bank`" = "1" || fail "default number of lines is not 1" +disable_chip chip remove_chip chip echo "2.2. Number of lines can be specified" @@ -212,6 +216,7 @@ create_bank chip bank set_num_lines chip bank 16 enable_chip chip test "`get_chip_num_lines chip bank`" = "16" || fail "number of lines is not 16" +disable_chip chip remove_chip chip echo "2.3. Label can be set" @@ -220,6 +225,7 @@ create_bank chip bank set_label chip bank foobar enable_chip chip test "`get_chip_label chip bank`" = "foobar" || fail "label is incorrect" +disable_chip chip remove_chip chip echo "2.4. Label can be left empty" @@ -227,6 +233,7 @@ create_chip chip create_bank chip bank enable_chip chip test -z "`cat $CONFIGFS_DIR/chip/bank/label`" || fail "label is not empty" +disable_chip chip remove_chip chip echo "2.5. Line names can be configured" @@ -238,6 +245,7 @@ set_line_name chip bank 2 bar enable_chip chip test "`get_line_name chip bank 0`" = "foo" || fail "line name is incorrect" test "`get_line_name chip bank 2`" = "bar" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.6. Line config can remain unused if offset is greater than number of lines" @@ -248,6 +256,7 @@ set_line_name chip bank 5 foobar enable_chip chip test "`get_line_name chip bank 0`" = "" || fail "line name is incorrect" test "`get_line_name chip bank 1`" = "" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.7. Line configfs directory names are sanitized" @@ -267,6 +276,7 @@ for CHIP in $CHIPS; do enable_chip $CHIP done for CHIP in $CHIPS; do + disable_chip $CHIP remove_chip $CHIP done @@ -278,6 +288,7 @@ echo foobar > $CONFIGFS_DIR/chip/bank/label 2> /dev/null && \ fail "Setting label of a live chip should fail" echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> /dev/null && \ fail "Setting number of lines of a live chip should fail" +disable_chip chip remove_chip chip echo "2.10. Can't create line items when chip is live" @@ -285,6 +296,7 @@ create_chip chip create_bank chip bank enable_chip chip mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/null && fail "Creating line item should fail" +disable_chip chip remove_chip chip echo "2.11. Probe errors are propagated to user-space" @@ -316,6 +328,7 @@ mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog enable_chip chip $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 4 2> /dev/null && \ fail "Setting the value of a hogged line shouldn't succeed" +disable_chip chip remove_chip chip echo "3. Controlling simulated chips" @@ -331,6 +344,7 @@ test "$?" = "1" || fail "pull set incorrectly" sysfs_set_pull chip bank 0 pull-down $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 1 test "$?" = "0" || fail "pull set incorrectly" +disable_chip chip remove_chip chip echo "3.2. Pull can be read from sysfs" @@ -344,6 +358,7 @@ SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull test `cat $SYSFS_PATH` = "pull-down" || fail "reading the pull failed" sysfs_set_pull chip bank 0 pull-up test `cat $SYSFS_PATH` = "pull-up" || fail "reading the pull failed" +disable_chip chip remove_chip chip echo "3.3. Incorrect input in sysfs is rejected" @@ -355,6 +370,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull" echo foobar > $SYSFS_PATH 2> /dev/null && fail "invalid input not detected" +disable_chip chip remove_chip chip echo "3.4. Can't write to value" @@ -365,6 +381,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" echo 1 > $SYSFS_PATH 2> /dev/null && fail "writing to 'value' succeeded unexpectedly" +disable_chip chip remove_chip chip echo "4. Simulated GPIO chips are functional" @@ -382,6 +399,7 @@ $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 0 & sleep 0.1 # FIXME Any better way? test `cat $SYSFS_PATH` = "1" || fail "incorrect value read from sysfs" kill $! +disable_chip chip remove_chip chip echo "4.2. Bias settings work correctly" @@ -394,6 +412,7 @@ CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" $BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`configfs_chip_name chip bank` 0 test `cat $SYSFS_PATH` = "1" || fail "bias setting does not work" +disable_chip chip remove_chip chip echo "GPIO $MODULE test PASS" -- 2.39.5

3 months

1
0
0 0

[PATCH AUTOSEL 6.13 4/5] selftests: gpio: gpio-sim: Fix missing chip disablements

by Sasha Levin

From: Koichiro Den <koichiro.den(a)canonical.com> [ Upstream commit f8524ac33cd452aef5384504b3264db6039a455e ] Since upstream commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an instantiated device depends on"), rmdir for an active virtual devices been prohibited. Update gpio-sim selftest to align with the change. Reported-by: kernel test robot <oliver.sang(a)intel.com> Closes: https://lore.kernel.org/oe-lkp/202501221006.a1ca5dfa-lkp@intel.com Signed-off-by: Koichiro Den <koichiro.den(a)canonical.com> Link: https://lore.kernel.org/r/20250122043309.304621-1-koichiro.den@canonical.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/gpio/gpio-sim.sh | 31 +++++++++++++++++++----- 1 file changed, 25 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/gpio/gpio-sim.sh b/tools/testing/selftests/gpio/gpio-sim.sh index 6fb66a687f173..bbc29ed9c60a9 100755 --- a/tools/testing/selftests/gpio/gpio-sim.sh +++ b/tools/testing/selftests/gpio/gpio-sim.sh @@ -46,12 +46,6 @@ remove_chip() { rmdir $CONFIGFS_DIR/$CHIP || fail "Unable to remove the chip" } -configfs_cleanup() { - for CHIP in `ls $CONFIGFS_DIR/`; do - remove_chip $CHIP - done -} - create_chip() { local CHIP=$1 @@ -105,6 +99,13 @@ disable_chip() { echo 0 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to disable the chip" } +configfs_cleanup() { + for CHIP in `ls $CONFIGFS_DIR/`; do + disable_chip $CHIP + remove_chip $CHIP + done +} + configfs_chip_name() { local CHIP=$1 local BANK=$2 @@ -181,6 +182,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/bank/chip_name` || fail "chip_name doesn't work" +disable_chip chip remove_chip chip echo "1.2. chip_name returns 'none' if the chip is still pending" @@ -195,6 +197,7 @@ create_chip chip create_bank chip bank enable_chip chip test -n `cat $CONFIGFS_DIR/chip/dev_name` || fail "dev_name doesn't work" +disable_chip chip remove_chip chip echo "2. Creating and configuring simulated chips" @@ -204,6 +207,7 @@ create_chip chip create_bank chip bank enable_chip chip test "`get_chip_num_lines chip bank`" = "1" || fail "default number of lines is not 1" +disable_chip chip remove_chip chip echo "2.2. Number of lines can be specified" @@ -212,6 +216,7 @@ create_bank chip bank set_num_lines chip bank 16 enable_chip chip test "`get_chip_num_lines chip bank`" = "16" || fail "number of lines is not 16" +disable_chip chip remove_chip chip echo "2.3. Label can be set" @@ -220,6 +225,7 @@ create_bank chip bank set_label chip bank foobar enable_chip chip test "`get_chip_label chip bank`" = "foobar" || fail "label is incorrect" +disable_chip chip remove_chip chip echo "2.4. Label can be left empty" @@ -227,6 +233,7 @@ create_chip chip create_bank chip bank enable_chip chip test -z "`cat $CONFIGFS_DIR/chip/bank/label`" || fail "label is not empty" +disable_chip chip remove_chip chip echo "2.5. Line names can be configured" @@ -238,6 +245,7 @@ set_line_name chip bank 2 bar enable_chip chip test "`get_line_name chip bank 0`" = "foo" || fail "line name is incorrect" test "`get_line_name chip bank 2`" = "bar" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.6. Line config can remain unused if offset is greater than number of lines" @@ -248,6 +256,7 @@ set_line_name chip bank 5 foobar enable_chip chip test "`get_line_name chip bank 0`" = "" || fail "line name is incorrect" test "`get_line_name chip bank 1`" = "" || fail "line name is incorrect" +disable_chip chip remove_chip chip echo "2.7. Line configfs directory names are sanitized" @@ -267,6 +276,7 @@ for CHIP in $CHIPS; do enable_chip $CHIP done for CHIP in $CHIPS; do + disable_chip $CHIP remove_chip $CHIP done @@ -278,6 +288,7 @@ echo foobar > $CONFIGFS_DIR/chip/bank/label 2> /dev/null && \ fail "Setting label of a live chip should fail" echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> /dev/null && \ fail "Setting number of lines of a live chip should fail" +disable_chip chip remove_chip chip echo "2.10. Can't create line items when chip is live" @@ -285,6 +296,7 @@ create_chip chip create_bank chip bank enable_chip chip mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/null && fail "Creating line item should fail" +disable_chip chip remove_chip chip echo "2.11. Probe errors are propagated to user-space" @@ -316,6 +328,7 @@ mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog enable_chip chip $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 4 2> /dev/null && \ fail "Setting the value of a hogged line shouldn't succeed" +disable_chip chip remove_chip chip echo "3. Controlling simulated chips" @@ -331,6 +344,7 @@ test "$?" = "1" || fail "pull set incorrectly" sysfs_set_pull chip bank 0 pull-down $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 1 test "$?" = "0" || fail "pull set incorrectly" +disable_chip chip remove_chip chip echo "3.2. Pull can be read from sysfs" @@ -344,6 +358,7 @@ SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull test `cat $SYSFS_PATH` = "pull-down" || fail "reading the pull failed" sysfs_set_pull chip bank 0 pull-up test `cat $SYSFS_PATH` = "pull-up" || fail "reading the pull failed" +disable_chip chip remove_chip chip echo "3.3. Incorrect input in sysfs is rejected" @@ -355,6 +370,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull" echo foobar > $SYSFS_PATH 2> /dev/null && fail "invalid input not detected" +disable_chip chip remove_chip chip echo "3.4. Can't write to value" @@ -365,6 +381,7 @@ DEVNAME=`configfs_dev_name chip` CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" echo 1 > $SYSFS_PATH 2> /dev/null && fail "writing to 'value' succeeded unexpectedly" +disable_chip chip remove_chip chip echo "4. Simulated GPIO chips are functional" @@ -382,6 +399,7 @@ $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 0 & sleep 0.1 # FIXME Any better way? test `cat $SYSFS_PATH` = "1" || fail "incorrect value read from sysfs" kill $! +disable_chip chip remove_chip chip echo "4.2. Bias settings work correctly" @@ -394,6 +412,7 @@ CHIPNAME=`configfs_chip_name chip bank` SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value" $BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`configfs_chip_name chip bank` 0 test `cat $SYSFS_PATH` = "1" || fail "bias setting does not work" +disable_chip chip remove_chip chip echo "GPIO $MODULE test PASS" -- 2.39.5

3 months

1
0
0 0

[RFC PATCH 0/4] PMU partitioning driver support

by Colton Lewis

This series introduces support in the ARM PMUv3 driver for partitioning PMU counters into two separate ranges by taking advantage of the MDCR_EL2.HPMN register field. The advantage of a partitioned PMU would be to allow KVM guests direct access to a subset of PMU functionality, greatly reducing the overhead of performance monitoring in guests. While this series could be accepted on its own merits, practically there is a lot more to be done before it will be fully useful, so I'm sending as an RFC for now. This patch is based on v6.13-rc7. It needs a small additional change after Oliver's Debug cleanups series going into 6.14, specifically this patch [1], because it changes kvm_arm_setup_mdcr_el2() to initialize HPMN from a cached value read early in the boot process instead of reading from the register. The only sensible way I can see to deal with this is returning to reading the register. [1] https://lore.kernel.org/kvmarm/20241219224116.3941496-3-oliver.upton@linux.… Colton Lewis (4): perf: arm_pmuv3: Introduce module param to partition the PMU KVM: arm64: Make guests see only counters they can access perf: arm_pmuv3: Generalize counter bitmasks perf: arm_pmuv3: Keep out of guest counter partition arch/arm/include/asm/arm_pmuv3.h | 10 ++ arch/arm64/include/asm/arm_pmuv3.h | 10 ++ arch/arm64/kvm/pmu-emul.c | 8 +- drivers/perf/arm_pmuv3.c | 113 ++++++++++++++++-- include/linux/perf/arm_pmu.h | 2 + include/linux/perf/arm_pmuv3.h | 34 +++++- .../kvm/aarch64/vpmu_counter_access.c | 2 +- 7 files changed, 160 insertions(+), 19 deletions(-) base-commit: 5bc55a333a2f7316b58edc7573e8e893f7acb532 -- 2.48.1.262.g85cc9f2d1e-goog

3 months

4
14
0 0

Re: [PATCH 2/3] KVM: x86: Add support for VMware guest specific hypercalls

by Doug Covelli

On Wed, Nov 13, 2024 at 2:31 AM Paolo Bonzini <pbonzini(a)redhat.com> wrote: > > > > Il mar 12 nov 2024, 21:44 Doug Covelli <doug.covelli(a)broadcom.com> ha scritto: >> >> > Split irqchip should be the best tradeoff. Without it, moves from cr8 >> > stay in the kernel, but moves to cr8 always go to userspace with a >> > KVM_EXIT_SET_TPR exit. You also won't be able to use Intel >> > flexpriority (in-processor accelerated TPR) because KVM does not know >> > which bits are set in IRR. So it will be *really* every move to cr8 >> > that goes to userspace. >> >> Sorry to hijack this thread but is there a technical reason not to allow CR8 >> based accesses to the TPR (not MMIO accesses) when the in-kernel local APIC is >> not in use? > > > No worries, you're not hijacking :) The only reason is that it would be more code for a seldom used feature and anyway with worse performance. (To be clear, CR8 based accesses are allowed, but stores cause an exit in order to check the new TPR against IRR. That's because KVM's API does not have an equivalent of the TPR threshold as you point out below). I have not really looked at the code but it seems like it could also simplify things as CR8 would be handled more uniformly regardless of who is virtualizing the local APIC. >> Also I could not find these documented anywhere but with MSFT's APIC our monitor >> relies on extensions for trapping certain events such as INIT/SIPI plus LINT0 >> and SVR writes: >> >> UINT64 X64ApicInitSipiExitTrap : 1; // WHvRunVpExitReasonX64ApicInitSipiTrap >> UINT64 X64ApicWriteLint0ExitTrap : 1; // WHvRunVpExitReasonX64ApicWriteTrap >> UINT64 X64ApicWriteLint1ExitTrap : 1; // WHvRunVpExitReasonX64ApicWriteTrap >> UINT64 X64ApicWriteSvrExitTrap : 1; // WHvRunVpExitReasonX64ApicWriteTrap > > > There's no need for this in KVM's in-kernel APIC model. INIT and SIPI are handled in the hypervisor and you can get the current state of APs via KVM_GET_MPSTATE. LINT0 and LINT1 are injected with KVM_INTERRUPT and KVM_NMI respectively, and they obey IF/PPR and NMI blocking respectively, plus the interrupt shadow; so there's no need for userspace to know when LINT0/LINT1 themselves change. The spurious interrupt vector register is also handled completely in kernel. I realize that KVM can handle LINT0/SVR updates themselves but our interrupt subsystem relies on knowing the current values of these registers even when not virtualizing the local APIC. I suppose we could use KVM_GET_LAPIC to sync things up on demand but that seems like it might nor be great from a performance point of view. >> I did not see any similar functionality for KVM. Does anything like that exist? >> In any case we would be happy to add support for handling CR8 accesses w/o >> exiting w/o the in-kernel APIC along with some sort of a way to configure the >> TPR threshold if folks are not opposed to that. > > > As far I know everybody who's using KVM (whether proprietary or open source) has had no need for that, so I don't think it's a good idea to make the API more complex. Performance of Windows guests is going to be bad anyway with userspace APIC. From what I have seen the exit cost with KVM is significantly lower than with WHP/Hyper-V. I don't think performance of Windows guests with userspace APIC emulation would be bad if CR8 exits could be avoided (Linux guests perf isn't bad from what I have observed and the main difference is the astronomical number of CR8 exits). It seems like it would be pretty decent although I agree if you want the absolute best performance then you would want to use the in kernel APIC to speed up handling of ICR/EOI writes but those are relatively infrequent compared to CR8 accesses . Anyway I just saw Sean's response while writing this and it seems he is not in favor of avoiding CR8 exits w/o the in kernel APIC either so I suppose we will have to look into making use of the in kernel APIC. Doug > Paolo > >> Doug >> >> > > For now I think it makes sense to handle BDOOR_CMD_GET_VCPU_INFO at userlevel >> > > like we do on Windows and macOS. >> > > >> > > BDOOR_CMD_GETTIME/BDOOR_CMD_GETTIMEFULL are similar with the former being >> > > deprecated in favor of the latter. Both do essentially the same thing which is >> > > to return the host OS's time - on Linux this is obtained via gettimeofday. I >> > > believe this is mainly used by tools to fix up the VM's time when resuming from >> > > suspend. I think it is fine to continue handling these at userlevel. >> > >> > As long as the TSC is not involved it should be okay. >> > >> > Paolo >> > >> > > > >> Anyway, one question apart from this: is the API the same for the I/O >> > > > >> port and hypercall backdoors? >> > > > > >> > > > > Yeah the calls and arguments are the same. The hypercall based >> > > > > interface is an attempt to modernize the backdoor since as you pointed >> > > > > out the I/O based interface is kind of hacky as it bypasses the normal >> > > > > checks for an I/O port access at CPL3. It would be nice to get rid of >> > > > > it but unfortunately I don't think that will happen in the foreseeable >> > > > > future as there are a lot of existing VMs out there with older SW that >> > > > > still uses this interface. >> > > > >> > > > Yeah, but I think it still justifies that the KVM_ENABLE_CAP API can >> > > > enable the hypercall but not the I/O port. >> > > > >> > > > Paolo >> > >> >> -- >> This electronic communication and the information and any files transmitted >> with it, or attached to it, are confidential and are intended solely for >> the use of the individual or entity to whom it is addressed and may contain >> information that is confidential, legally privileged, protected by privacy >> laws, or otherwise restricted from disclosure to anyone else. If you are >> not the intended recipient or the person responsible for delivering the >> e-mail to the intended recipient, you are hereby notified that any use, >> copying, distributing, dissemination, forwarding, printing, or copying of >> this e-mail is strictly prohibited. If you received this e-mail in error, >> please return the e-mail to the sender, delete it from your computer, and >> destroy any printed copy of it. >> -- This electronic communication and the information and any files transmitted with it, or attached to it, are confidential and are intended solely for the use of the individual or entity to whom it is addressed and may contain information that is confidential, legally privileged, protected by privacy laws, or otherwise restricted from disclosure to anyone else. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, you are hereby notified that any use, copying, distributing, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited. If you received this e-mail in error, please return the e-mail to the sender, delete it from your computer, and destroy any printed copy of it.

3 months

3
12
0 0

[PATCH 0/6] selftests/nolibc: wire up riscv32

by Thomas Weißschuh

Nolibc has support for riscv32. But the testsuite did not allow to test it so far. Add a test configuration. Signed-off-by: Thomas Weißschuh <linux(a)weissschuh.net> --- Thomas Weißschuh (6): tools/nolibc: add support for waitid() selftests/nolibc: use waitid() over waitpid() selftests/nolibc: use a pipe to in vfprintf tests selftests/nolibc: skip tests for unimplemented syscalls selftests/nolibc: rename riscv to riscv64 selftests/nolibc: add configurations for riscv32 tools/include/nolibc/sys.h | 18 ++++++++++++ tools/testing/selftests/nolibc/Makefile | 11 +++++++ tools/testing/selftests/nolibc/nolibc-test.c | 44 ++++++++++++++++------------ tools/testing/selftests/nolibc/run-tests.sh | 2 +- 4 files changed, 56 insertions(+), 19 deletions(-) --- base-commit: 499551201b5f4fd3c0618a3e95e3d0d15ea18f31 change-id: 20241219-nolibc-rv32-cff8a3e22394 Best regards, -- Thomas Weißschuh <linux(a)weissschuh.net>

3 months

4
12
0 0

[PATCH bpf-next 0/3] bpf: Some fixes for nullness elision

by Daniel Xu

Two fixes for nullness elision. See commits for more details. Daniel Xu (3): bpf: verifier: Do not extract constant map keys for irrelevant maps bpf: selftests: Test constant key extraction on irrelevant maps bpf: verifier: Disambiguate get_constant_map_key() errors kernel/bpf/verifier.c | 29 ++++++++++++++----- .../bpf/progs/verifier_array_access.c | 15 ++++++++++ 2 files changed, 36 insertions(+), 8 deletions(-) -- 2.47.1

3 months

2
2
0 0

[PATCH RFC net-next] netconsole: selftest: Add test for fragmented messages

by Breno Leitao

Add a new selftest to verify netconsole's handling of messages that exceed the packet size limit and require fragmentation. The test sends messages with varying sizes and userdata, validating that: 1. Large messages are correctly fragmented and reassembled 2. Userdata fields are properly preserved across fragments 3. Messages work correctly with and without kernel release version appending The test creates a networking environment using netdevsim, sends messages through /dev/kmsg, and verifies the received fragments maintain message integrity. Signed-off-by: Breno Leitao <leitao(a)debian.org> --- tools/testing/selftests/drivers/net/Makefile | 1 + .../selftests/drivers/net/lib/sh/lib_netcons.sh | 7 ++ .../drivers/net/netcons_fragmented_msg.sh | 122 +++++++++++++++++++++ 3 files changed, 130 insertions(+) diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile index 137470bdee0c7fd2517bd1baafc12d575de4b4ac..c7f1c443f2af091aa13f67dd1df9ae05d7a43f40 100644 --- a/tools/testing/selftests/drivers/net/Makefile +++ b/tools/testing/selftests/drivers/net/Makefile @@ -7,6 +7,7 @@ TEST_INCLUDES := $(wildcard lib/py/*.py) \ TEST_PROGS := \ netcons_basic.sh \ + netcons_fragmented_msg.sh \ netcons_overflow.sh \ ping.py \ queues.py \ diff --git a/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh b/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh index 3acaba41ac7b21aa2fd8457ed640a5ac8a41bc12..0c262b123fdd3082c40b2bd899ec626d223226ed 100644 --- a/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh +++ b/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh @@ -110,6 +110,13 @@ function create_dynamic_target() { echo 1 > "${NETCONS_PATH}"/enabled } +# Do not append the release to the header of the message +function disable_release_append() { + echo 0 > "${NETCONS_PATH}"/enabled + echo 0 > "${NETCONS_PATH}"/release + echo 1 > "${NETCONS_PATH}"/enabled +} + function cleanup() { local NSIM_DEV_SYS_DEL="/sys/bus/netdevsim/del_device" diff --git a/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh b/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh new file mode 100755 index 0000000000000000000000000000000000000000..d175d5b9db662ab9a6ee203794569cc620801a4f --- /dev/null +++ b/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh @@ -0,0 +1,122 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: GPL-2.0 + +# Test netconsole's message fragmentation functionality. +# +# When a message exceeds the maximum packet size, netconsole splits it into +# multiple fragments for transmission. This test verifies: +# - Correct fragmentation of large messages +# - Proper reassembly of fragments at the receiver +# - Preservation of userdata across fragments +# - Behavior with and without kernel release version appending +# +# Author: Breno Leitao <leitao(a)debian.org> + +set -euo pipefail + +SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")") + +source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh + +modprobe netdevsim 2> /dev/null || true +modprobe netconsole 2> /dev/null || true + +# The content of kmsg will be save to the following file +OUTPUT_FILE="/tmp/${TARGET}" + +# set userdata to a long value. In this case, it is "1-2-3-4...50-" +USERDATA_VALUE=$(printf -- '%.2s-' {1..60}) + +# Convert the header string in a regexp, so, we can remove +# the second header as well. +# A header looks like "13,468,514729715,-,ncfrag=0/1135;". If +# release is appended, you might find something like:L +# "6.13.0-04048-g4f561a87745a,13,468,514729715,-,ncfrag=0/1135;" +function header_to_regex() { + # header is everything before ; + local HEADER="${1}" + REGEX=$(echo "${HEADER}" | cut -d'=' -f1) + echo "${REGEX}=[0-9]*\/[0-9]*;" +} + +# We have two headers in the message. Remove both to get the full message, +# and extract the full message. +function extract_msg() { + local MSGFILE="${1}" + # Extract the header, which is the very first thing that arrives in the + # first list. + HEADER=$(sed -n '1p' "${MSGFILE}" | cut -d';' -f1) + HEADER_REGEX=$(header_to_regex "${HEADER}") + + # Remove the two headers from the received message + # This will return the message without any header, similarly to what + # was sent. + sed "s/""${HEADER_REGEX}""//g" "${MSGFILE}" +} + +# Validate the message, which has two messages glued together. +# unwrap them to make sure all the characters were transmitted. +# File will look like the following: +# 13,468,514729715,-,ncfrag=0/1135;MSG1=MSG2=MSG3=MSG4=MSG5=MSG6=MSG7=MSG8=MSG9=MSG10=MSG11=MSG12=MSG13=MSG14=MSG15=MSG16=MSG17=MSG18=MSG19=MSG20=MSG21=MSG22=MSG23=MSG24=MSG25=MSG26=MSG27=MSG28=MSG29=MSG30=MSG31=MSG32=MSG33=MSG34=MSG35=MSG36=MSG37=MSG38=MSG39=MSG40=MSG41=MSG42=MSG43=MSG44=MSG45=MSG46=MSG47=MSG48=MSG49=MSG50=MSG51=MSG52=MSG53=MSG54=MSG55=MSG56=MSG57=MSG58=MSG59=MSG60=MSG61=MSG62=MSG63=MSG64=MSG65=MSG66=MSG67=MSG68=MSG69=MSG70=MSG71=MSG72=MSG73=MSG74=MSG75=MSG76=MSG77=MSG78=MSG79=MSG80=MSG81=MSG82=MSG83=MSG84=MSG85=MSG86=MSG87=MSG88=MSG89=MSG90=MSG91=MSG92=MSG93=MSG94=MSG95=MSG96=MSG97=MSG98=MSG99=MSG100=MSG101=MSG102=MSG103=MSG104=MSG105=MSG106=MSG107=MSG108=MSG109=MSG110=MSG111=MSG112=MSG113=MSG114=MSG115=MSG116=MSG117=MSG118=MSG119=MSG120=MSG121=MSG122=MSG123=MSG124=MSG125=MSG126=MSG127=MSG128=MSG129=MSG130=MSG131=MSG132=MSG133=MSG134=MSG135=MSG136=MSG137=MSG138=MSG139=MSG140=MSG141=MSG142=MSG143=MSG144=MSG145=MSG146=MSG147=MSG148=MSG149=MSG150=: netcons_nzmJQ +# key=1-2-13,468,514729715,-,ncfrag=967/1135;3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28-29-30-31-32-33-34-35-36-37-38-39-40-41-42-43-44-45-46-47-48-49-50-51-52-53-54-55-56-57-58-59-60- +function validate_fragmented_result() { + # Discard the netconsole headers, and assemble the full message + RCVMSG=$(extract_msg "${1}") + + # check for the main message + if ! echo "${RCVMSG}" | grep -q "${MSG}"; then + echo "Message body doesn't match." >&2 + echo "msg received=" "${RCVMSG}" >&2 + exit "${ksft_fail}" + fi + + # check userdata + if ! echo "${RCVMSG}" | grep -q "${USERDATA_VALUE}"; then + echo "message userdata doesn't match" >&2 + echo "msg received=" "${RCVMSG}" >&2 + exit "${ksft_fail}" + fi + # test passed. hooray +} + +# Check for basic system dependency and exit if not found +check_for_dependencies +# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5) +echo "6 5" > /proc/sys/kernel/printk +# Remove the namespace, interfaces and netconsole target on exit +trap cleanup EXIT +# Create one namespace and two interfaces +set_network +# Create a dynamic target for netconsole +create_dynamic_target +# Set userdata "key" with the "value" value +set_user_data + + +# TEST 1: Send message and userdata. They will fragment +# ======= +MSG=$(printf -- 'MSG%.3s=' {1..150}) + +# Listen for netconsole port inside the namespace and destination interface +listen_port_and_save_to "${OUTPUT_FILE}" & +# Wait for socat to start and listen to the port. +wait_local_port_listen "${NAMESPACE}" "${PORT}" udp +# Send the message +echo "${MSG}: ${TARGET}" > /dev/kmsg +# Wait until socat saves the file to disk +busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}" +# Check if the message was not corrupted +validate_fragmented_result "${OUTPUT_FILE}" + +# TEST 2: Test with smaller message, and without release appended +# ======= +MSG=$(printf -- 'FOOBAR%.3s=' {1..100}) +# Let's disable release and test again. +disable_release_append + +listen_port_and_save_to "${OUTPUT_FILE}" & +wait_local_port_listen "${NAMESPACE}" "${PORT}" udp +echo "${MSG}: ${TARGET}" > /dev/kmsg +busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}" +validate_fragmented_result "${OUTPUT_FILE}" +exit "${ksft_pass}" --- base-commit: 0ad9617c78acbc71373fb341a6f75d4012b01d69 change-id: 20250129-netcons_frag_msgs-91506d136f50 Best regards, -- Breno Leitao <leitao(a)debian.org>

3 months

2
4
0 0

[PATCH bpf-next v4 00/14] selftests/bpf: Migrate test_xdp_redirect_multi.sh to test_progs

by Bastien Curutchet (eBPF Foundation)

Hi all, This patch series continues the work to migrate the *.sh tests into prog_tests framework. test_xdp_redirect_multi.sh tests the XDP redirections done through bpf_redirect_map(). This is already partly covered by test_xdp_veth.c that already tests map redirections at XDP level. What isn't covered yet by test_xdp_veth is the use of the broadcast flags (BPF_F_BROADCAST or BPF_F_EXCLUDE_INGRESS) and XDP egress programs. Hence, this patch series add test cases to test_xdp_veth.c to get rid of the test_xdp_redirect_multi.sh: - PATCH 1 Add an helper to generate unique names - PATCH 2 to 9 rework test_xdp_veth to make it more generic and allow to configure different test cases - PATCH 10 adds test cases for 'classic' bpf_redirect_map() - PATCH 11 and 12 cover the broadcast flags - PATCH 13 covers the XDP egress programs - PATCH 14 removes test_xdp_redirect_multi.sh Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet(a)bootlin.com> --- Changes in v4: - Remove the NO_IP #define - append_tid() takes string's size as input to ensure there is enough space to fit the thread ID at the end - Fix PATCH 12's commit log - Link to v3: https://lore.kernel.org/r/20250128-redirect-multi-v3-0-c1ce69997c01@bootlin… Changes in v3: - Add append_tid() helper and use unique names to allow parallel testing - Check create_network()'s return value through ASSERT_OK() - Remove check_ping() and unused defines - Change next_veth type (from string to int) - Link to v2: https://lore.kernel.org/r/20250121-redirect-multi-v2-0-fc9cacabc6b2@bootlin… Changes in v2: - Use serial_test_* to avoid conflict between tests - Link to v1: https://lore.kernel.org/r/20250121-redirect-multi-v1-0-b215e35ff505@bootlin… --- Bastien Curutchet (eBPF Foundation) (14): selftests/bpf: helpers: Add append_tid() selftests/bpf: test_xdp_veth: Remove unused defines selftests/bpf: test_xdp_veth: Remove unecessarry check_ping() selftests/bpf: test_xdp_veth: Use int to describe next veth selftests/bpf: test_xdp_veth: Split network configuration selftests/bpf: test_xdp_veth: Rename config[] selftests/bpf: test_xdp_veth: Add prog_config[] table selftests/bpf: test_xdp_veth: Add XDP flags to prog_configuration selftests/bpf: test_xdp_veth: Use unique names selftests/bpf: test_xdp_veth: Add new test cases for XDP flags selftests/bpf: Optionally select broadcasting flags selftests/bpf: test_xdp_veth: Add XDP broadcast redirection tests selftests/bpf: test_xdp_veth: Add XDP program on egress test selftests/bpf: Remove test_xdp_redirect_multi.sh tools/testing/selftests/bpf/Makefile | 2 - tools/testing/selftests/bpf/network_helpers.c | 17 + tools/testing/selftests/bpf/network_helpers.h | 12 + .../selftests/bpf/prog_tests/test_xdp_veth.c | 588 ++++++++++++++++----- .../testing/selftests/bpf/progs/xdp_redirect_map.c | 89 ++++ .../selftests/bpf/progs/xdp_redirect_multi_kern.c | 41 +- .../selftests/bpf/test_xdp_redirect_multi.sh | 214 -------- tools/testing/selftests/bpf/xdp_redirect_multi.c | 226 -------- 8 files changed, 615 insertions(+), 574 deletions(-) --- base-commit: 421ec9c8f46a25743870a8cbaff76de293752e00 change-id: 20250103-redirect-multi-245d6eafb5d1 Best regards, -- Bastien Curutchet (eBPF Foundation) <bastien.curutchet(a)bootlin.com>

3 months

3
16
0 0

[PATCH v4 0/7] ptrace: introduce PTRACE_SET_SYSCALL_INFO API

by Dmitry V. Levin

PTRACE_SET_SYSCALL_INFO is a generic ptrace API that complements PTRACE_GET_SYSCALL_INFO by letting the ptracer modify details of system calls the tracee is blocked in. This API allows ptracers to obtain and modify system call details in a straightforward and architecture-agnostic way. Current implementation supports changing only those bits of system call information that are used by strace, namely, syscall number, syscall arguments, and syscall return value. Support of changing additional details returned by PTRACE_GET_SYSCALL_INFO, such as instruction pointer and stack pointer, could be added later if needed, by using struct ptrace_syscall_info.flags to specify the additional details that should be set. Currently, "flags" and "reserved" fields of struct ptrace_syscall_info must be initialized with zeroes; "arch", "instruction_pointer", and "stack_pointer" fields are ignored. PTRACE_SET_SYSCALL_INFO currently supports only PTRACE_SYSCALL_INFO_ENTRY, PTRACE_SYSCALL_INFO_EXIT, and PTRACE_SYSCALL_INFO_SECCOMP operations. Other operations could be added later if needed. Ideally, PTRACE_SET_SYSCALL_INFO should have been introduced along with PTRACE_GET_SYSCALL_INFO, but it didn't happen. The last straw that convinced me to implement PTRACE_SET_SYSCALL_INFO was apparent failure to provide an API of changing the first system call argument on riscv architecture [1]. ptrace(2) man page: long ptrace(enum __ptrace_request request, pid_t pid, void *addr, void *data); ... PTRACE_SET_SYSCALL_INFO Modify information about the system call that caused the stop. The "data" argument is a pointer to struct ptrace_syscall_info that specifies the system call information to be set. The "addr" argument should be set to sizeof(struct ptrace_syscall_info)). [1] https://lore.kernel.org/all/59505464-c84a-403d-972f-d4b2055eeaac@gmail.com/ Notes: v4: * Split out syscall_set_return_value() for hexagon into a separate patch * s390: Change the style of syscall_set_arguments() implementation as requested * Add more Reviewed-by * v3: https://lore.kernel.org/all/20250128091445.GA8257@strace.io/ v3: * powerpc: Submit syscall_set_return_value() fix for "sc" case separately * mips: Do not introduce erroneous argument truncation on mips n32, add a detailed description to the commit message of the mips_get_syscall_arg() change * ptrace: Add explicit padding to the end of struct ptrace_syscall_info, simplify obtaining of user ptrace_syscall_info, do not introduce PTRACE_SYSCALL_INFO_SIZE_VER0 * ptrace: Change the return type of ptrace_set_syscall_info_* functions from "unsigned long" to "int" * ptrace: Add -ERANGE check to ptrace_set_syscall_info_exit(), add comments to -ERANGE checks * ptrace: Update comments about supported syscall stops * selftests: Extend set_syscall_info test, fix for mips n32 * Add Tested-by and Reviewed-by v2: * Add patch to fix syscall_set_return_value() on powerpc * Add patch to fix mips_get_syscall_arg() on mips * Add syscall_set_return_value() implementation on hexagon * Add syscall_set_return_value() invocation to syscall_set_nr() on arm and arm64. * Fix syscall_set_nr() and mips_set_syscall_arg() on mips * Add a comment to syscall_set_nr() on arc, powerpc, s390, sh, and sparc * Remove redundant ptrace_syscall_info.op assignments in ptrace_get_syscall_info_* * Minor style tweaks in ptrace_get_syscall_info_op() * Remove syscall_set_return_value() invocation from ptrace_set_syscall_info_entry() * Skip syscall_set_arguments() invocation in case of syscall number -1 in ptrace_set_syscall_info_entry() * Split ptrace_syscall_info.reserved into ptrace_syscall_info.reserved and ptrace_syscall_info.flags * Use __kernel_ulong_t instead of unsigned long in set_syscall_info test v1: Dmitry V. Levin (7): mips: fix mips_get_syscall_arg() for o32 hexagon: add syscall_set_return_value() syscall.h: add syscall_set_arguments() syscall.h: introduce syscall_set_nr() ptrace_get_syscall_info: factor out ptrace_get_syscall_info_op ptrace: introduce PTRACE_SET_SYSCALL_INFO request selftests/ptrace: add a test case for PTRACE_SET_SYSCALL_INFO arch/arc/include/asm/syscall.h | 25 + arch/arm/include/asm/syscall.h | 37 ++ arch/arm64/include/asm/syscall.h | 29 + arch/csky/include/asm/syscall.h | 13 + arch/hexagon/include/asm/syscall.h | 21 + arch/loongarch/include/asm/syscall.h | 15 + arch/m68k/include/asm/syscall.h | 7 + arch/microblaze/include/asm/syscall.h | 7 + arch/mips/include/asm/syscall.h | 70 ++- arch/nios2/include/asm/syscall.h | 16 + arch/openrisc/include/asm/syscall.h | 13 + arch/parisc/include/asm/syscall.h | 19 + arch/powerpc/include/asm/syscall.h | 20 + arch/riscv/include/asm/syscall.h | 16 + arch/s390/include/asm/syscall.h | 21 + arch/sh/include/asm/syscall_32.h | 24 + arch/sparc/include/asm/syscall.h | 22 + arch/um/include/asm/syscall-generic.h | 19 + arch/x86/include/asm/syscall.h | 43 ++ arch/xtensa/include/asm/syscall.h | 18 + include/asm-generic/syscall.h | 30 + include/uapi/linux/ptrace.h | 7 +- kernel/ptrace.c | 179 +++++- tools/testing/selftests/ptrace/Makefile | 2 +- .../selftests/ptrace/set_syscall_info.c | 514 ++++++++++++++++++ 25 files changed, 1140 insertions(+), 47 deletions(-) create mode 100644 tools/testing/selftests/ptrace/set_syscall_info.c -- ldv

3 months

2
2
0 0

[PATCH v3 net] udp: gso: do not drop small packets when PMTU reduces

by Yan Zhai

Commit 4094871db1d6 ("udp: only do GSO if # of segs > 1") avoided GSO for small packets. But the kernel currently dismisses GSO requests only after checking MTU/PMTU on gso_size. This means any packets, regardless of their payload sizes, could be dropped when PMTU becomes smaller than requested gso_size. We encountered this issue in production and it caused a reliability problem that new QUIC connection cannot be established before PMTU cache expired, while non GSO sockets still worked fine at the same time. Ideally, do not check any GSO related constraints when payload size is smaller than requested gso_size, and return EMSGSIZE instead of EINVAL on MTU/PMTU check failure to be more specific on the error cause. Fixes: 4094871db1d6 ("udp: only do GSO if # of segs > 1") Signed-off-by: Yan Zhai <yan(a)cloudflare.com> Suggested-by: Willem de Bruijn <willemdebruijn.kernel(a)gmail.com> --- v2->v3: simplify the code; adding two test cases v1->v2: add a missing MTU check when fall back to no GSO mode; Fixed up commit message to be more precise. v2: https://lore.kernel.org/netdev/Z5swit7ykNRbJFMS@debian.debian/T/#u v1: https://lore.kernel.org/all/Z5cgWh%2F6bRQm9vVU@debian.debian/ --- net/ipv4/udp.c | 4 ++-- net/ipv6/udp.c | 4 ++-- tools/testing/selftests/net/udpgso.c | 26 ++++++++++++++++++++++++++ 3 files changed, 30 insertions(+), 4 deletions(-) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index c472c9a57cf6..a9bb9ce5438e 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1141,9 +1141,9 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4, const int hlen = skb_network_header_len(skb) + sizeof(struct udphdr); - if (hlen + cork->gso_size > cork->fragsize) { + if (hlen + min(datalen, cork->gso_size) > cork->fragsize) { kfree_skb(skb); - return -EINVAL; + return -EMSGSIZE; } if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) { kfree_skb(skb); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 6671daa67f4f..c6ea438b5c75 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1389,9 +1389,9 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6, const int hlen = skb_network_header_len(skb) + sizeof(struct udphdr); - if (hlen + cork->gso_size > cork->fragsize) { + if (hlen + min(datalen, cork->gso_size) > cork->fragsize) { kfree_skb(skb); - return -EINVAL; + return -EMSGSIZE; } if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) { kfree_skb(skb); diff --git a/tools/testing/selftests/net/udpgso.c b/tools/testing/selftests/net/udpgso.c index 3f2fca02fec5..36ff28af4b19 100644 --- a/tools/testing/selftests/net/udpgso.c +++ b/tools/testing/selftests/net/udpgso.c @@ -102,6 +102,19 @@ struct testcase testcases_v4[] = { .gso_len = CONST_MSS_V4, .r_num_mss = 1, }, + { + /* datalen <= MSS < gso_len: will fall back to no GSO */ + .tlen = CONST_MSS_V4, + .gso_len = CONST_MSS_V4 + 1, + .r_num_mss = 0, + .r_len_last = CONST_MSS_V4, + }, + { + /* MSS < datalen < gso_len: fail */ + .tlen = CONST_MSS_V4 + 1, + .gso_len = CONST_MSS_V4 + 2, + .tfail = true, + }, { /* send a single MSS + 1B */ .tlen = CONST_MSS_V4 + 1, @@ -205,6 +218,19 @@ struct testcase testcases_v6[] = { .gso_len = CONST_MSS_V6, .r_num_mss = 1, }, + { + /* datalen <= MSS < gso_len: will fall back to no GSO */ + .tlen = CONST_MSS_V6, + .gso_len = CONST_MSS_V6 + 1, + .r_num_mss = 0, + .r_len_last = CONST_MSS_V6, + }, + { + /* MSS < datalen < gso_len: fail */ + .tlen = CONST_MSS_V6 + 1, + .gso_len = CONST_MSS_V6 + 2, + .tfail = true + }, { /* send a single MSS + 1B */ .tlen = CONST_MSS_V6 + 1, -- 2.30.2

3 months

3
2
0 0

[PATCH] scanf: convert self-test to KUnit

by Tamir Duberstein

Convert the scanf() self-test to a KUnit test. In the interest of keeping the patch reasonably-sized this doesn't rename the file in accordance with usual kunit conventions nor does it refactor the tests into proper parameterized tests - it's all one big test case. Signed-off-by: Tamir Duberstein <tamird(a)gmail.com> --- This is one of just 3 remaining "Test Module" kselftests (the others being bitmap and printf), the rest having been converted to KUnit. In addition to the enclosed patch, please consider this an RFC on the removal of the "Test Module" kselftest machinery. I tested this using: $ tools/testing/kunit/kunit.py run --arch arm64 --make_options LLVM=1 scanf --- arch/m68k/configs/amiga_defconfig | 1 - arch/m68k/configs/apollo_defconfig | 1 - arch/m68k/configs/atari_defconfig | 1 - arch/m68k/configs/bvme6000_defconfig | 1 - arch/m68k/configs/hp300_defconfig | 1 - arch/m68k/configs/mac_defconfig | 1 - arch/m68k/configs/multi_defconfig | 1 - arch/m68k/configs/mvme147_defconfig | 1 - arch/m68k/configs/mvme16x_defconfig | 1 - arch/m68k/configs/q40_defconfig | 1 - arch/m68k/configs/sun3_defconfig | 1 - arch/m68k/configs/sun3x_defconfig | 1 - arch/powerpc/configs/ppc64_defconfig | 1 - lib/Kconfig.debug | 20 +- lib/Makefile | 2 +- lib/test_scanf.c | 704 +++++++++++++++++------------------ tools/testing/selftests/lib/Makefile | 2 +- tools/testing/selftests/lib/config | 1 - tools/testing/selftests/lib/scanf.sh | 4 - 19 files changed, 358 insertions(+), 388 deletions(-) diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index dbf2ea561c85..e85a4b3a9847 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -623,7 +623,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index b0fd199cc0a4..232b885cc26e 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -580,7 +580,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index bb5b2d3b6c10..228af5b4cd42 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -600,7 +600,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index 8315a13bab73..cbc59aed3d97 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -572,7 +572,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index 350370657e5f..8d3787b8fe6d 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -582,7 +582,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index f942b4755702..a68893d83361 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -599,7 +599,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index b1eaad02efab..9a17526cefd2 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -686,7 +686,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index 6309a4442bb3..5cf2e2860044 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -572,7 +572,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 3feb0731f814..eb395749bc75 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -573,7 +573,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index ea04b1b0da7d..8891f12c2a18 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -589,7 +589,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index f52d9af92153..a49ff5330e5b 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -569,7 +569,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index f348447824da..3022ff492136 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -570,7 +570,6 @@ CONFIG_ASYNC_RAID6_TEST=m CONFIG_TEST_HEXDUMP=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index 465eb96c755e..819387cbbe69 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -445,7 +445,6 @@ CONFIG_STRING_SELFTEST=m CONFIG_TEST_STRING_HELPERS=m CONFIG_TEST_KSTRTOX=m CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_TEST_UUID=m CONFIG_TEST_XARRAY=m diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 1af972a92d06..716c4ef857bb 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2427,6 +2427,23 @@ config ASYNC_RAID6_TEST config TEST_HEXDUMP tristate "Test functions located in the hexdump module at runtime" +config SCANF_KUNIT_TEST + tristate "KUnit test scanf() family of functions at runtime" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this option to test the scanf functions at boot. + + KUnit tests run during boot and output the results to the debug log + in TAP format (http://testanything.org/). Only useful for kernel devs + running the KUnit test harness, and not intended for inclusion into a + production build. + + For more information on KUnit and unit tests in general please refer + to the KUnit documentation in Documentation/dev-tools/kunit/. + + If unsure, say N. + config STRING_KUNIT_TEST tristate "KUnit test string functions at runtime" if !KUNIT_ALL_TESTS depends on KUNIT @@ -2443,9 +2460,6 @@ config TEST_KSTRTOX config TEST_PRINTF tristate "Test printf() family of functions at runtime" -config TEST_SCANF - tristate "Test scanf() family of functions at runtime" - config TEST_BITMAP tristate "Test bitmap_*() family of functions at runtime" help diff --git a/lib/Makefile b/lib/Makefile index d5cfc7afbbb8..8f1cf22bd83b 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -52,6 +52,7 @@ obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \ percpu-refcount.o rhashtable.o base64.o \ once.o refcount.o rcuref.o usercopy.o errseq.o bucket_locks.o \ generic-radix-tree.o bitmap-str.o +obj-$(CONFIG_SCANF_KUNIT_TEST) += test_scanf.o obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o obj-y += string_helpers.o obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o @@ -85,7 +86,6 @@ obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o obj-$(CONFIG_TEST_DYNAMIC_DEBUG) += test_dynamic_debug.o obj-$(CONFIG_TEST_PRINTF) += test_printf.o -obj-$(CONFIG_TEST_SCANF) += test_scanf.o obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_KASAN),yy) diff --git a/lib/test_scanf.c b/lib/test_scanf.c index 44f8508c9d88..70364ce20ec3 100644 --- a/lib/test_scanf.c +++ b/lib/test_scanf.c @@ -5,8 +5,8 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <kunit/test.h> #include <linux/bitops.h> -#include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/overflow.h> @@ -15,148 +15,123 @@ #include <linux/slab.h> #include <linux/string.h> -#include "../tools/testing/selftests/kselftest_module.h" - #define BUF_SIZE 1024 -KSTM_MODULE_GLOBALS(); -static char *test_buffer __initdata; -static char *fmt_buffer __initdata; -static struct rnd_state rnd_state __initdata; +static char *test_buffer; +static char *fmt_buffer; +static struct rnd_state rnd_state; -typedef int (*check_fn)(const void *check_data, const char *string, +typedef void (*check_fn)(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap); -static void __scanf(4, 6) __init -_test(check_fn fn, const void *check_data, const char *string, const char *fmt, +static void __scanf(5, 7) +_test(struct kunit *test, check_fn fn, const void *check_data, const char *string, const char *fmt, int n_args, ...) { va_list ap, ap_copy; - int ret; - - total_tests++; va_start(ap, n_args); va_copy(ap_copy, ap); - ret = vsscanf(string, fmt, ap_copy); + KUNIT_EXPECT_EQ_MSG(test, vsscanf(string, fmt, ap_copy), n_args, + "vsscanf(\"%s\", \"%s\", ...)", string, fmt); va_end(ap_copy); - if (ret != n_args) { - pr_warn("vsscanf(\"%s\", \"%s\", ...) returned %d expected %d\n", - string, fmt, ret, n_args); - goto fail; - } - - ret = (*fn)(check_data, string, fmt, n_args, ap); - if (ret) - goto fail; - - va_end(ap); - - return; - -fail: - failed_tests++; + (*fn)(test, check_data, string, fmt, n_args, ap); va_end(ap); } -#define _check_numbers_template(arg_fmt, expect, str, fmt, n_args, ap) \ +#define _check_numbers_template(test, arg_fmt, expect, str, fmt, n_args, ap) \ do { \ pr_debug("\"%s\", \"%s\" ->\n", str, fmt); \ for (; n_args > 0; n_args--, expect++) { \ typeof(*expect) got = *va_arg(ap, typeof(expect)); \ pr_debug("\t" arg_fmt "\n", got); \ - if (got != *expect) { \ - pr_warn("vsscanf(\"%s\", \"%s\", ...) expected " arg_fmt " got " arg_fmt "\n", \ - str, fmt, *expect, got); \ - return 1; \ - } \ + KUNIT_EXPECT_EQ_MSG(test, got, *expect, "vsscanf(\"%s\", \"%s\", ...)", str, fmt); \ } \ - return 0; \ } while (0) -static int __init check_ull(const void *check_data, const char *string, +static void check_ull(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned long long *pval = check_data; - _check_numbers_template("%llu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%llu", pval, string, fmt, n_args, ap); } -static int __init check_ll(const void *check_data, const char *string, +static void check_ll(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const long long *pval = check_data; - _check_numbers_template("%lld", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%lld", pval, string, fmt, n_args, ap); } -static int __init check_ulong(const void *check_data, const char *string, +static void check_ulong(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned long *pval = check_data; - _check_numbers_template("%lu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%lu", pval, string, fmt, n_args, ap); } -static int __init check_long(const void *check_data, const char *string, +static void check_long(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const long *pval = check_data; - _check_numbers_template("%ld", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%ld", pval, string, fmt, n_args, ap); } -static int __init check_uint(const void *check_data, const char *string, +static void check_uint(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned int *pval = check_data; - _check_numbers_template("%u", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%u", pval, string, fmt, n_args, ap); } -static int __init check_int(const void *check_data, const char *string, +static void check_int(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const int *pval = check_data; - _check_numbers_template("%d", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%d", pval, string, fmt, n_args, ap); } -static int __init check_ushort(const void *check_data, const char *string, +static void check_ushort(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned short *pval = check_data; - _check_numbers_template("%hu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hu", pval, string, fmt, n_args, ap); } -static int __init check_short(const void *check_data, const char *string, +static void check_short(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const short *pval = check_data; - _check_numbers_template("%hd", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hd", pval, string, fmt, n_args, ap); } -static int __init check_uchar(const void *check_data, const char *string, +static void check_uchar(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const unsigned char *pval = check_data; - _check_numbers_template("%hhu", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hhu", pval, string, fmt, n_args, ap); } -static int __init check_char(const void *check_data, const char *string, +static void check_char(struct kunit *test, const void *check_data, const char *string, const char *fmt, int n_args, va_list ap) { const signed char *pval = check_data; - _check_numbers_template("%hhd", pval, string, fmt, n_args, ap); + _check_numbers_template(test, "%hhd", pval, string, fmt, n_args, ap); } /* Selection of interesting numbers to test, copied from test-kstrtox.c */ -static const unsigned long long numbers[] __initconst = { +static const unsigned long long numbers[] = { 0x0ULL, 0x1ULL, 0x7fULL, @@ -190,76 +165,76 @@ static const unsigned long long numbers[] __initconst = { : ((unsigned long long)(val) <= type_max(T))) -#define test_one_number(T, gen_fmt, scan_fmt, val, fn) \ -do { \ - const T expect_val = (T)(val); \ - T result = ~expect_val; /* should be overwritten */ \ - \ - snprintf(test_buffer, BUF_SIZE, gen_fmt, expect_val); \ - _test(fn, &expect_val, test_buffer, "%" scan_fmt, 1, &result); \ +#define test_one_number(test, T, gen_fmt, scan_fmt, val, fn) \ +do { \ + const T expect_val = (T)(val); \ + T result = ~expect_val; /* should be overwritten */ \ + \ + snprintf(test_buffer, BUF_SIZE, gen_fmt, expect_val); \ + _test(test, fn, &expect_val, test_buffer, "%" scan_fmt, 1, &result); \ } while (0) -#define simple_numbers_loop(T, gen_fmt, scan_fmt, fn) \ +#define simple_numbers_loop(test, T, gen_fmt, scan_fmt, fn) \ do { \ int i; \ \ for (i = 0; i < ARRAY_SIZE(numbers); i++) { \ if (value_representable_in_type(T, numbers[i])) \ - test_one_number(T, gen_fmt, scan_fmt, \ + test_one_number(test, T, gen_fmt, scan_fmt, \ numbers[i], fn); \ \ if (value_representable_in_type(T, -numbers[i])) \ - test_one_number(T, gen_fmt, scan_fmt, \ + test_one_number(test, T, gen_fmt, scan_fmt, \ -numbers[i], fn); \ } \ } while (0) -static void __init numbers_simple(void) -{ - simple_numbers_loop(unsigned long long, "%llu", "llu", check_ull); - simple_numbers_loop(long long, "%lld", "lld", check_ll); - simple_numbers_loop(long long, "%lld", "lli", check_ll); - simple_numbers_loop(unsigned long long, "%llx", "llx", check_ull); - simple_numbers_loop(long long, "%llx", "llx", check_ll); - simple_numbers_loop(long long, "0x%llx", "lli", check_ll); - simple_numbers_loop(unsigned long long, "0x%llx", "llx", check_ull); - simple_numbers_loop(long long, "0x%llx", "llx", check_ll); - - simple_numbers_loop(unsigned long, "%lu", "lu", check_ulong); - simple_numbers_loop(long, "%ld", "ld", check_long); - simple_numbers_loop(long, "%ld", "li", check_long); - simple_numbers_loop(unsigned long, "%lx", "lx", check_ulong); - simple_numbers_loop(long, "%lx", "lx", check_long); - simple_numbers_loop(long, "0x%lx", "li", check_long); - simple_numbers_loop(unsigned long, "0x%lx", "lx", check_ulong); - simple_numbers_loop(long, "0x%lx", "lx", check_long); - - simple_numbers_loop(unsigned int, "%u", "u", check_uint); - simple_numbers_loop(int, "%d", "d", check_int); - simple_numbers_loop(int, "%d", "i", check_int); - simple_numbers_loop(unsigned int, "%x", "x", check_uint); - simple_numbers_loop(int, "%x", "x", check_int); - simple_numbers_loop(int, "0x%x", "i", check_int); - simple_numbers_loop(unsigned int, "0x%x", "x", check_uint); - simple_numbers_loop(int, "0x%x", "x", check_int); - - simple_numbers_loop(unsigned short, "%hu", "hu", check_ushort); - simple_numbers_loop(short, "%hd", "hd", check_short); - simple_numbers_loop(short, "%hd", "hi", check_short); - simple_numbers_loop(unsigned short, "%hx", "hx", check_ushort); - simple_numbers_loop(short, "%hx", "hx", check_short); - simple_numbers_loop(short, "0x%hx", "hi", check_short); - simple_numbers_loop(unsigned short, "0x%hx", "hx", check_ushort); - simple_numbers_loop(short, "0x%hx", "hx", check_short); - - simple_numbers_loop(unsigned char, "%hhu", "hhu", check_uchar); - simple_numbers_loop(signed char, "%hhd", "hhd", check_char); - simple_numbers_loop(signed char, "%hhd", "hhi", check_char); - simple_numbers_loop(unsigned char, "%hhx", "hhx", check_uchar); - simple_numbers_loop(signed char, "%hhx", "hhx", check_char); - simple_numbers_loop(signed char, "0x%hhx", "hhi", check_char); - simple_numbers_loop(unsigned char, "0x%hhx", "hhx", check_uchar); - simple_numbers_loop(signed char, "0x%hhx", "hhx", check_char); +static void numbers_simple(struct kunit *test) +{ + simple_numbers_loop(test, unsigned long long, "%llu", "llu", check_ull); + simple_numbers_loop(test, long long, "%lld", "lld", check_ll); + simple_numbers_loop(test, long long, "%lld", "lli", check_ll); + simple_numbers_loop(test, unsigned long long, "%llx", "llx", check_ull); + simple_numbers_loop(test, long long, "%llx", "llx", check_ll); + simple_numbers_loop(test, long long, "0x%llx", "lli", check_ll); + simple_numbers_loop(test, unsigned long long, "0x%llx", "llx", check_ull); + simple_numbers_loop(test, long long, "0x%llx", "llx", check_ll); + + simple_numbers_loop(test, unsigned long, "%lu", "lu", check_ulong); + simple_numbers_loop(test, long, "%ld", "ld", check_long); + simple_numbers_loop(test, long, "%ld", "li", check_long); + simple_numbers_loop(test, unsigned long, "%lx", "lx", check_ulong); + simple_numbers_loop(test, long, "%lx", "lx", check_long); + simple_numbers_loop(test, long, "0x%lx", "li", check_long); + simple_numbers_loop(test, unsigned long, "0x%lx", "lx", check_ulong); + simple_numbers_loop(test, long, "0x%lx", "lx", check_long); + + simple_numbers_loop(test, unsigned int, "%u", "u", check_uint); + simple_numbers_loop(test, int, "%d", "d", check_int); + simple_numbers_loop(test, int, "%d", "i", check_int); + simple_numbers_loop(test, unsigned int, "%x", "x", check_uint); + simple_numbers_loop(test, int, "%x", "x", check_int); + simple_numbers_loop(test, int, "0x%x", "i", check_int); + simple_numbers_loop(test, unsigned int, "0x%x", "x", check_uint); + simple_numbers_loop(test, int, "0x%x", "x", check_int); + + simple_numbers_loop(test, unsigned short, "%hu", "hu", check_ushort); + simple_numbers_loop(test, short, "%hd", "hd", check_short); + simple_numbers_loop(test, short, "%hd", "hi", check_short); + simple_numbers_loop(test, unsigned short, "%hx", "hx", check_ushort); + simple_numbers_loop(test, short, "%hx", "hx", check_short); + simple_numbers_loop(test, short, "0x%hx", "hi", check_short); + simple_numbers_loop(test, unsigned short, "0x%hx", "hx", check_ushort); + simple_numbers_loop(test, short, "0x%hx", "hx", check_short); + + simple_numbers_loop(test, unsigned char, "%hhu", "hhu", check_uchar); + simple_numbers_loop(test, signed char, "%hhd", "hhd", check_char); + simple_numbers_loop(test, signed char, "%hhd", "hhi", check_char); + simple_numbers_loop(test, unsigned char, "%hhx", "hhx", check_uchar); + simple_numbers_loop(test, signed char, "%hhx", "hhx", check_char); + simple_numbers_loop(test, signed char, "0x%hhx", "hhi", check_char); + simple_numbers_loop(test, unsigned char, "0x%hhx", "hhx", check_uchar); + simple_numbers_loop(test, signed char, "0x%hhx", "hhx", check_char); } /* @@ -267,14 +242,14 @@ static void __init numbers_simple(void) * the raw prandom*() functions (Not mathematically rigorous!!). * Variabilty of length and value is more important than perfect randomness. */ -static u32 __init next_test_random(u32 max_bits) +static u32 next_test_random(u32 max_bits) { u32 n_bits = hweight32(prandom_u32_state(&rnd_state)) % (max_bits + 1); return prandom_u32_state(&rnd_state) & GENMASK(n_bits, 0); } -static unsigned long long __init next_test_random_ull(void) +static unsigned long long next_test_random_ull(void) { u32 rand1 = prandom_u32_state(&rnd_state); u32 n_bits = (hweight32(rand1) * 3) % 64; @@ -311,7 +286,7 @@ do { \ * updating buf_pos and returning the number of characters appended. * On error buf_pos is not changed and return value is 0. */ -static int __init __printf(4, 5) +static int __printf(4, 5) append_fmt(char *buf, int *buf_pos, int buf_len, const char *val_fmt, ...) { va_list ap; @@ -333,7 +308,7 @@ append_fmt(char *buf, int *buf_pos, int buf_len, const char *val_fmt, ...) * Convenience function to append the field delimiter string * to both the value string and format string buffers. */ -static void __init append_delim(char *str_buf, int *str_buf_pos, int str_buf_len, +static void append_delim(char *str_buf, int *str_buf_pos, int str_buf_len, char *fmt_buf, int *fmt_buf_pos, int fmt_buf_len, const char *delim_str) { @@ -341,15 +316,15 @@ static void __init append_delim(char *str_buf, int *str_buf_pos, int str_buf_len append_fmt(fmt_buf, fmt_buf_pos, fmt_buf_len, delim_str); } -#define test_array_8(fn, check_data, string, fmt, arr) \ +#define test_array_8(test, fn, check_data, string, fmt, arr) \ do { \ BUILD_BUG_ON(ARRAY_SIZE(arr) != 8); \ - _test(fn, check_data, string, fmt, 8, \ + _test(test, fn, check_data, string, fmt, 8, \ &(arr)[0], &(arr)[1], &(arr)[2], &(arr)[3], \ &(arr)[4], &(arr)[5], &(arr)[6], &(arr)[7]); \ } while (0) -#define numbers_list_8(T, gen_fmt, field_sep, scan_fmt, fn) \ +#define numbers_list_8(test, T, gen_fmt, field_sep, scan_fmt, fn) \ do { \ int i, pos = 0, fmt_pos = 0; \ T expect[8], result[8]; \ @@ -366,18 +341,18 @@ do { \ append_fmt(fmt_buffer, &fmt_pos, BUF_SIZE, "%%%s", scan_fmt); \ } \ \ - test_array_8(fn, expect, test_buffer, fmt_buffer, result); \ + test_array_8(test, fn, expect, test_buffer, fmt_buffer, result); \ } while (0) -#define numbers_list_fix_width(T, gen_fmt, field_sep, width, scan_fmt, fn) \ +#define numbers_list_fix_width(test, T, gen_fmt, field_sep, width, scan_fmt, fn)\ do { \ char full_fmt[16]; \ \ snprintf(full_fmt, sizeof(full_fmt), "%u%s", width, scan_fmt); \ - numbers_list_8(T, gen_fmt, field_sep, full_fmt, fn); \ + numbers_list_8(test, T, gen_fmt, field_sep, full_fmt, fn); \ } while (0) -#define numbers_list_val_width(T, gen_fmt, field_sep, scan_fmt, fn) \ +#define numbers_list_val_width(test, T, gen_fmt, field_sep, scan_fmt, fn) \ do { \ int i, val_len, pos = 0, fmt_pos = 0; \ T expect[8], result[8]; \ @@ -395,201 +370,201 @@ do { \ "%%%u%s", val_len, scan_fmt); \ } \ \ - test_array_8(fn, expect, test_buffer, fmt_buffer, result); \ + test_array_8(test, fn, expect, test_buffer, fmt_buffer, result); \ } while (0) -static void __init numbers_list_ll(const char *delim) +static void numbers_list_ll(struct kunit *test, const char *delim) { - numbers_list_8(unsigned long long, "%llu", delim, "llu", check_ull); - numbers_list_8(long long, "%lld", delim, "lld", check_ll); - numbers_list_8(long long, "%lld", delim, "lli", check_ll); - numbers_list_8(unsigned long long, "%llx", delim, "llx", check_ull); - numbers_list_8(unsigned long long, "0x%llx", delim, "llx", check_ull); - numbers_list_8(long long, "0x%llx", delim, "lli", check_ll); + numbers_list_8(test, unsigned long long, "%llu", delim, "llu", check_ull); + numbers_list_8(test, long long, "%lld", delim, "lld", check_ll); + numbers_list_8(test, long long, "%lld", delim, "lli", check_ll); + numbers_list_8(test, unsigned long long, "%llx", delim, "llx", check_ull); + numbers_list_8(test, unsigned long long, "0x%llx", delim, "llx", check_ull); + numbers_list_8(test, long long, "0x%llx", delim, "lli", check_ll); } -static void __init numbers_list_l(const char *delim) +static void numbers_list_l(struct kunit *test, const char *delim) { - numbers_list_8(unsigned long, "%lu", delim, "lu", check_ulong); - numbers_list_8(long, "%ld", delim, "ld", check_long); - numbers_list_8(long, "%ld", delim, "li", check_long); - numbers_list_8(unsigned long, "%lx", delim, "lx", check_ulong); - numbers_list_8(unsigned long, "0x%lx", delim, "lx", check_ulong); - numbers_list_8(long, "0x%lx", delim, "li", check_long); + numbers_list_8(test, unsigned long, "%lu", delim, "lu", check_ulong); + numbers_list_8(test, long, "%ld", delim, "ld", check_long); + numbers_list_8(test, long, "%ld", delim, "li", check_long); + numbers_list_8(test, unsigned long, "%lx", delim, "lx", check_ulong); + numbers_list_8(test, unsigned long, "0x%lx", delim, "lx", check_ulong); + numbers_list_8(test, long, "0x%lx", delim, "li", check_long); } -static void __init numbers_list_d(const char *delim) +static void numbers_list_d(struct kunit *test, const char *delim) { - numbers_list_8(unsigned int, "%u", delim, "u", check_uint); - numbers_list_8(int, "%d", delim, "d", check_int); - numbers_list_8(int, "%d", delim, "i", check_int); - numbers_list_8(unsigned int, "%x", delim, "x", check_uint); - numbers_list_8(unsigned int, "0x%x", delim, "x", check_uint); - numbers_list_8(int, "0x%x", delim, "i", check_int); + numbers_list_8(test, unsigned int, "%u", delim, "u", check_uint); + numbers_list_8(test, int, "%d", delim, "d", check_int); + numbers_list_8(test, int, "%d", delim, "i", check_int); + numbers_list_8(test, unsigned int, "%x", delim, "x", check_uint); + numbers_list_8(test, unsigned int, "0x%x", delim, "x", check_uint); + numbers_list_8(test, int, "0x%x", delim, "i", check_int); } -static void __init numbers_list_h(const char *delim) +static void numbers_list_h(struct kunit *test, const char *delim) { - numbers_list_8(unsigned short, "%hu", delim, "hu", check_ushort); - numbers_list_8(short, "%hd", delim, "hd", check_short); - numbers_list_8(short, "%hd", delim, "hi", check_short); - numbers_list_8(unsigned short, "%hx", delim, "hx", check_ushort); - numbers_list_8(unsigned short, "0x%hx", delim, "hx", check_ushort); - numbers_list_8(short, "0x%hx", delim, "hi", check_short); + numbers_list_8(test, unsigned short, "%hu", delim, "hu", check_ushort); + numbers_list_8(test, short, "%hd", delim, "hd", check_short); + numbers_list_8(test, short, "%hd", delim, "hi", check_short); + numbers_list_8(test, unsigned short, "%hx", delim, "hx", check_ushort); + numbers_list_8(test, unsigned short, "0x%hx", delim, "hx", check_ushort); + numbers_list_8(test, short, "0x%hx", delim, "hi", check_short); } -static void __init numbers_list_hh(const char *delim) +static void numbers_list_hh(struct kunit *test, const char *delim) { - numbers_list_8(unsigned char, "%hhu", delim, "hhu", check_uchar); - numbers_list_8(signed char, "%hhd", delim, "hhd", check_char); - numbers_list_8(signed char, "%hhd", delim, "hhi", check_char); - numbers_list_8(unsigned char, "%hhx", delim, "hhx", check_uchar); - numbers_list_8(unsigned char, "0x%hhx", delim, "hhx", check_uchar); - numbers_list_8(signed char, "0x%hhx", delim, "hhi", check_char); + numbers_list_8(test, unsigned char, "%hhu", delim, "hhu", check_uchar); + numbers_list_8(test, signed char, "%hhd", delim, "hhd", check_char); + numbers_list_8(test, signed char, "%hhd", delim, "hhi", check_char); + numbers_list_8(test, unsigned char, "%hhx", delim, "hhx", check_uchar); + numbers_list_8(test, unsigned char, "0x%hhx", delim, "hhx", check_uchar); + numbers_list_8(test, signed char, "0x%hhx", delim, "hhi", check_char); } -static void __init numbers_list(const char *delim) +static void numbers_list(struct kunit *test, const char *delim) { - numbers_list_ll(delim); - numbers_list_l(delim); - numbers_list_d(delim); - numbers_list_h(delim); - numbers_list_hh(delim); + numbers_list_ll(test, delim); + numbers_list_l(test, delim); + numbers_list_d(test, delim); + numbers_list_h(test, delim); + numbers_list_hh(test, delim); } -static void __init numbers_list_field_width_ll(const char *delim) +static void numbers_list_field_width_ll(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned long long, "%llu", delim, 20, "llu", check_ull); - numbers_list_fix_width(long long, "%lld", delim, 20, "lld", check_ll); - numbers_list_fix_width(long long, "%lld", delim, 20, "lli", check_ll); - numbers_list_fix_width(unsigned long long, "%llx", delim, 16, "llx", check_ull); - numbers_list_fix_width(unsigned long long, "0x%llx", delim, 18, "llx", check_ull); - numbers_list_fix_width(long long, "0x%llx", delim, 18, "lli", check_ll); + numbers_list_fix_width(test, unsigned long long, "%llu", delim, 20, "llu", check_ull); + numbers_list_fix_width(test, long long, "%lld", delim, 20, "lld", check_ll); + numbers_list_fix_width(test, long long, "%lld", delim, 20, "lli", check_ll); + numbers_list_fix_width(test, unsigned long long, "%llx", delim, 16, "llx", check_ull); + numbers_list_fix_width(test, unsigned long long, "0x%llx", delim, 18, "llx", check_ull); + numbers_list_fix_width(test, long long, "0x%llx", delim, 18, "lli", check_ll); } -static void __init numbers_list_field_width_l(const char *delim) +static void numbers_list_field_width_l(struct kunit *test, const char *delim) { #if BITS_PER_LONG == 64 - numbers_list_fix_width(unsigned long, "%lu", delim, 20, "lu", check_ulong); - numbers_list_fix_width(long, "%ld", delim, 20, "ld", check_long); - numbers_list_fix_width(long, "%ld", delim, 20, "li", check_long); - numbers_list_fix_width(unsigned long, "%lx", delim, 16, "lx", check_ulong); - numbers_list_fix_width(unsigned long, "0x%lx", delim, 18, "lx", check_ulong); - numbers_list_fix_width(long, "0x%lx", delim, 18, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lu", delim, 20, "lu", check_ulong); + numbers_list_fix_width(test, long, "%ld", delim, 20, "ld", check_long); + numbers_list_fix_width(test, long, "%ld", delim, 20, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lx", delim, 16, "lx", check_ulong); + numbers_list_fix_width(test, unsigned long, "0x%lx", delim, 18, "lx", check_ulong); + numbers_list_fix_width(test, long, "0x%lx", delim, 18, "li", check_long); #else - numbers_list_fix_width(unsigned long, "%lu", delim, 10, "lu", check_ulong); - numbers_list_fix_width(long, "%ld", delim, 11, "ld", check_long); - numbers_list_fix_width(long, "%ld", delim, 11, "li", check_long); - numbers_list_fix_width(unsigned long, "%lx", delim, 8, "lx", check_ulong); - numbers_list_fix_width(unsigned long, "0x%lx", delim, 10, "lx", check_ulong); - numbers_list_fix_width(long, "0x%lx", delim, 10, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lu", delim, 10, "lu", check_ulong); + numbers_list_fix_width(test, long, "%ld", delim, 11, "ld", check_long); + numbers_list_fix_width(test, long, "%ld", delim, 11, "li", check_long); + numbers_list_fix_width(test, unsigned long, "%lx", delim, 8, "lx", check_ulong); + numbers_list_fix_width(test, unsigned long, "0x%lx", delim, 10, "lx", check_ulong); + numbers_list_fix_width(test, long, "0x%lx", delim, 10, "li", check_long); #endif } -static void __init numbers_list_field_width_d(const char *delim) +static void numbers_list_field_width_d(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned int, "%u", delim, 10, "u", check_uint); - numbers_list_fix_width(int, "%d", delim, 11, "d", check_int); - numbers_list_fix_width(int, "%d", delim, 11, "i", check_int); - numbers_list_fix_width(unsigned int, "%x", delim, 8, "x", check_uint); - numbers_list_fix_width(unsigned int, "0x%x", delim, 10, "x", check_uint); - numbers_list_fix_width(int, "0x%x", delim, 10, "i", check_int); + numbers_list_fix_width(test, unsigned int, "%u", delim, 10, "u", check_uint); + numbers_list_fix_width(test, int, "%d", delim, 11, "d", check_int); + numbers_list_fix_width(test, int, "%d", delim, 11, "i", check_int); + numbers_list_fix_width(test, unsigned int, "%x", delim, 8, "x", check_uint); + numbers_list_fix_width(test, unsigned int, "0x%x", delim, 10, "x", check_uint); + numbers_list_fix_width(test, int, "0x%x", delim, 10, "i", check_int); } -static void __init numbers_list_field_width_h(const char *delim) +static void numbers_list_field_width_h(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned short, "%hu", delim, 5, "hu", check_ushort); - numbers_list_fix_width(short, "%hd", delim, 6, "hd", check_short); - numbers_list_fix_width(short, "%hd", delim, 6, "hi", check_short); - numbers_list_fix_width(unsigned short, "%hx", delim, 4, "hx", check_ushort); - numbers_list_fix_width(unsigned short, "0x%hx", delim, 6, "hx", check_ushort); - numbers_list_fix_width(short, "0x%hx", delim, 6, "hi", check_short); + numbers_list_fix_width(test, unsigned short, "%hu", delim, 5, "hu", check_ushort); + numbers_list_fix_width(test, short, "%hd", delim, 6, "hd", check_short); + numbers_list_fix_width(test, short, "%hd", delim, 6, "hi", check_short); + numbers_list_fix_width(test, unsigned short, "%hx", delim, 4, "hx", check_ushort); + numbers_list_fix_width(test, unsigned short, "0x%hx", delim, 6, "hx", check_ushort); + numbers_list_fix_width(test, short, "0x%hx", delim, 6, "hi", check_short); } -static void __init numbers_list_field_width_hh(const char *delim) +static void numbers_list_field_width_hh(struct kunit *test, const char *delim) { - numbers_list_fix_width(unsigned char, "%hhu", delim, 3, "hhu", check_uchar); - numbers_list_fix_width(signed char, "%hhd", delim, 4, "hhd", check_char); - numbers_list_fix_width(signed char, "%hhd", delim, 4, "hhi", check_char); - numbers_list_fix_width(unsigned char, "%hhx", delim, 2, "hhx", check_uchar); - numbers_list_fix_width(unsigned char, "0x%hhx", delim, 4, "hhx", check_uchar); - numbers_list_fix_width(signed char, "0x%hhx", delim, 4, "hhi", check_char); + numbers_list_fix_width(test, unsigned char, "%hhu", delim, 3, "hhu", check_uchar); + numbers_list_fix_width(test, signed char, "%hhd", delim, 4, "hhd", check_char); + numbers_list_fix_width(test, signed char, "%hhd", delim, 4, "hhi", check_char); + numbers_list_fix_width(test, unsigned char, "%hhx", delim, 2, "hhx", check_uchar); + numbers_list_fix_width(test, unsigned char, "0x%hhx", delim, 4, "hhx", check_uchar); + numbers_list_fix_width(test, signed char, "0x%hhx", delim, 4, "hhi", check_char); } /* * List of numbers separated by delim. Each field width specifier is the * maximum possible digits for the given type and base. */ -static void __init numbers_list_field_width_typemax(const char *delim) +static void numbers_list_field_width_typemax(struct kunit *test, const char *delim) { - numbers_list_field_width_ll(delim); - numbers_list_field_width_l(delim); - numbers_list_field_width_d(delim); - numbers_list_field_width_h(delim); - numbers_list_field_width_hh(delim); + numbers_list_field_width_ll(test, delim); + numbers_list_field_width_l(test, delim); + numbers_list_field_width_d(test, delim); + numbers_list_field_width_h(test, delim); + numbers_list_field_width_hh(test, delim); } -static void __init numbers_list_field_width_val_ll(const char *delim) +static void numbers_list_field_width_val_ll(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned long long, "%llu", delim, "llu", check_ull); - numbers_list_val_width(long long, "%lld", delim, "lld", check_ll); - numbers_list_val_width(long long, "%lld", delim, "lli", check_ll); - numbers_list_val_width(unsigned long long, "%llx", delim, "llx", check_ull); - numbers_list_val_width(unsigned long long, "0x%llx", delim, "llx", check_ull); - numbers_list_val_width(long long, "0x%llx", delim, "lli", check_ll); + numbers_list_val_width(test, unsigned long long, "%llu", delim, "llu", check_ull); + numbers_list_val_width(test, long long, "%lld", delim, "lld", check_ll); + numbers_list_val_width(test, long long, "%lld", delim, "lli", check_ll); + numbers_list_val_width(test, unsigned long long, "%llx", delim, "llx", check_ull); + numbers_list_val_width(test, unsigned long long, "0x%llx", delim, "llx", check_ull); + numbers_list_val_width(test, long long, "0x%llx", delim, "lli", check_ll); } -static void __init numbers_list_field_width_val_l(const char *delim) +static void numbers_list_field_width_val_l(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned long, "%lu", delim, "lu", check_ulong); - numbers_list_val_width(long, "%ld", delim, "ld", check_long); - numbers_list_val_width(long, "%ld", delim, "li", check_long); - numbers_list_val_width(unsigned long, "%lx", delim, "lx", check_ulong); - numbers_list_val_width(unsigned long, "0x%lx", delim, "lx", check_ulong); - numbers_list_val_width(long, "0x%lx", delim, "li", check_long); + numbers_list_val_width(test, unsigned long, "%lu", delim, "lu", check_ulong); + numbers_list_val_width(test, long, "%ld", delim, "ld", check_long); + numbers_list_val_width(test, long, "%ld", delim, "li", check_long); + numbers_list_val_width(test, unsigned long, "%lx", delim, "lx", check_ulong); + numbers_list_val_width(test, unsigned long, "0x%lx", delim, "lx", check_ulong); + numbers_list_val_width(test, long, "0x%lx", delim, "li", check_long); } -static void __init numbers_list_field_width_val_d(const char *delim) +static void numbers_list_field_width_val_d(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned int, "%u", delim, "u", check_uint); - numbers_list_val_width(int, "%d", delim, "d", check_int); - numbers_list_val_width(int, "%d", delim, "i", check_int); - numbers_list_val_width(unsigned int, "%x", delim, "x", check_uint); - numbers_list_val_width(unsigned int, "0x%x", delim, "x", check_uint); - numbers_list_val_width(int, "0x%x", delim, "i", check_int); + numbers_list_val_width(test, unsigned int, "%u", delim, "u", check_uint); + numbers_list_val_width(test, int, "%d", delim, "d", check_int); + numbers_list_val_width(test, int, "%d", delim, "i", check_int); + numbers_list_val_width(test, unsigned int, "%x", delim, "x", check_uint); + numbers_list_val_width(test, unsigned int, "0x%x", delim, "x", check_uint); + numbers_list_val_width(test, int, "0x%x", delim, "i", check_int); } -static void __init numbers_list_field_width_val_h(const char *delim) +static void numbers_list_field_width_val_h(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned short, "%hu", delim, "hu", check_ushort); - numbers_list_val_width(short, "%hd", delim, "hd", check_short); - numbers_list_val_width(short, "%hd", delim, "hi", check_short); - numbers_list_val_width(unsigned short, "%hx", delim, "hx", check_ushort); - numbers_list_val_width(unsigned short, "0x%hx", delim, "hx", check_ushort); - numbers_list_val_width(short, "0x%hx", delim, "hi", check_short); + numbers_list_val_width(test, unsigned short, "%hu", delim, "hu", check_ushort); + numbers_list_val_width(test, short, "%hd", delim, "hd", check_short); + numbers_list_val_width(test, short, "%hd", delim, "hi", check_short); + numbers_list_val_width(test, unsigned short, "%hx", delim, "hx", check_ushort); + numbers_list_val_width(test, unsigned short, "0x%hx", delim, "hx", check_ushort); + numbers_list_val_width(test, short, "0x%hx", delim, "hi", check_short); } -static void __init numbers_list_field_width_val_hh(const char *delim) +static void numbers_list_field_width_val_hh(struct kunit *test, const char *delim) { - numbers_list_val_width(unsigned char, "%hhu", delim, "hhu", check_uchar); - numbers_list_val_width(signed char, "%hhd", delim, "hhd", check_char); - numbers_list_val_width(signed char, "%hhd", delim, "hhi", check_char); - numbers_list_val_width(unsigned char, "%hhx", delim, "hhx", check_uchar); - numbers_list_val_width(unsigned char, "0x%hhx", delim, "hhx", check_uchar); - numbers_list_val_width(signed char, "0x%hhx", delim, "hhi", check_char); + numbers_list_val_width(test, unsigned char, "%hhu", delim, "hhu", check_uchar); + numbers_list_val_width(test, signed char, "%hhd", delim, "hhd", check_char); + numbers_list_val_width(test, signed char, "%hhd", delim, "hhi", check_char); + numbers_list_val_width(test, unsigned char, "%hhx", delim, "hhx", check_uchar); + numbers_list_val_width(test, unsigned char, "0x%hhx", delim, "hhx", check_uchar); + numbers_list_val_width(test, signed char, "0x%hhx", delim, "hhi", check_char); } /* * List of numbers separated by delim. Each field width specifier is the * exact length of the corresponding value digits in the string being scanned. */ -static void __init numbers_list_field_width_val_width(const char *delim) +static void numbers_list_field_width_val_width(struct kunit *test, const char *delim) { - numbers_list_field_width_val_ll(delim); - numbers_list_field_width_val_l(delim); - numbers_list_field_width_val_d(delim); - numbers_list_field_width_val_h(delim); - numbers_list_field_width_val_hh(delim); + numbers_list_field_width_val_ll(test, delim); + numbers_list_field_width_val_l(test, delim); + numbers_list_field_width_val_d(test, delim); + numbers_list_field_width_val_h(test, delim); + numbers_list_field_width_val_hh(test, delim); } /* @@ -598,67 +573,67 @@ static void __init numbers_list_field_width_val_width(const char *delim) * of digits. For example the hex values c0,3,bf01,303 would have a * string representation of "c03bf01303" and extracted with "%2x%1x%4x%3x". */ -static void __init numbers_slice(void) +static void numbers_slice(struct kunit *test) { - numbers_list_field_width_val_width(""); + numbers_list_field_width_val_width(test, ""); } -#define test_number_prefix(T, str, scan_fmt, expect0, expect1, n_args, fn) \ +#define test_number_prefix(test, T, str, scan_fmt, expect0, expect1, n_args, fn)\ do { \ const T expect[2] = { expect0, expect1 }; \ T result[2] = { (T)~expect[0], (T)~expect[1] }; \ \ - _test(fn, &expect, str, scan_fmt, n_args, &result[0], &result[1]); \ + _test(test, fn, &expect, str, scan_fmt, n_args, &result[0], &result[1]);\ } while (0) /* * Number prefix is >= field width. * Expected behaviour is derived from testing userland sscanf. */ -static void __init numbers_prefix_overflow(void) +static void numbers_prefix_overflow(struct kunit *test) { /* * Negative decimal with a field of width 1, should quit scanning * and return 0. */ - test_number_prefix(long long, "-1 1", "%1lld %lld", 0, 0, 0, check_ll); - test_number_prefix(long, "-1 1", "%1ld %ld", 0, 0, 0, check_long); - test_number_prefix(int, "-1 1", "%1d %d", 0, 0, 0, check_int); - test_number_prefix(short, "-1 1", "%1hd %hd", 0, 0, 0, check_short); - test_number_prefix(signed char, "-1 1", "%1hhd %hhd", 0, 0, 0, check_char); - - test_number_prefix(long long, "-1 1", "%1lli %lli", 0, 0, 0, check_ll); - test_number_prefix(long, "-1 1", "%1li %li", 0, 0, 0, check_long); - test_number_prefix(int, "-1 1", "%1i %i", 0, 0, 0, check_int); - test_number_prefix(short, "-1 1", "%1hi %hi", 0, 0, 0, check_short); - test_number_prefix(signed char, "-1 1", "%1hhi %hhi", 0, 0, 0, check_char); + test_number_prefix(test, long long, "-1 1", "%1lld %lld", 0, 0, 0, check_ll); + test_number_prefix(test, long, "-1 1", "%1ld %ld", 0, 0, 0, check_long); + test_number_prefix(test, int, "-1 1", "%1d %d", 0, 0, 0, check_int); + test_number_prefix(test, short, "-1 1", "%1hd %hd", 0, 0, 0, check_short); + test_number_prefix(test, signed char, "-1 1", "%1hhd %hhd", 0, 0, 0, check_char); + + test_number_prefix(test, long long, "-1 1", "%1lli %lli", 0, 0, 0, check_ll); + test_number_prefix(test, long, "-1 1", "%1li %li", 0, 0, 0, check_long); + test_number_prefix(test, int, "-1 1", "%1i %i", 0, 0, 0, check_int); + test_number_prefix(test, short, "-1 1", "%1hi %hi", 0, 0, 0, check_short); + test_number_prefix(test, signed char, "-1 1", "%1hhi %hhi", 0, 0, 0, check_char); /* * 0x prefix in a field of width 1: 0 is a valid digit so should * convert. Next field scan starts at the 'x' which isn't a digit so * scan quits with one field converted. */ - test_number_prefix(unsigned long long, "0xA7", "%1llx%llx", 0, 0, 1, check_ull); - test_number_prefix(unsigned long, "0xA7", "%1lx%lx", 0, 0, 1, check_ulong); - test_number_prefix(unsigned int, "0xA7", "%1x%x", 0, 0, 1, check_uint); - test_number_prefix(unsigned short, "0xA7", "%1hx%hx", 0, 0, 1, check_ushort); - test_number_prefix(unsigned char, "0xA7", "%1hhx%hhx", 0, 0, 1, check_uchar); - test_number_prefix(long long, "0xA7", "%1lli%llx", 0, 0, 1, check_ll); - test_number_prefix(long, "0xA7", "%1li%lx", 0, 0, 1, check_long); - test_number_prefix(int, "0xA7", "%1i%x", 0, 0, 1, check_int); - test_number_prefix(short, "0xA7", "%1hi%hx", 0, 0, 1, check_short); - test_number_prefix(char, "0xA7", "%1hhi%hhx", 0, 0, 1, check_char); + test_number_prefix(test, unsigned long long, "0xA7", "%1llx%llx", 0, 0, 1, check_ull); + test_number_prefix(test, unsigned long, "0xA7", "%1lx%lx", 0, 0, 1, check_ulong); + test_number_prefix(test, unsigned int, "0xA7", "%1x%x", 0, 0, 1, check_uint); + test_number_prefix(test, unsigned short, "0xA7", "%1hx%hx", 0, 0, 1, check_ushort); + test_number_prefix(test, unsigned char, "0xA7", "%1hhx%hhx", 0, 0, 1, check_uchar); + test_number_prefix(test, long long, "0xA7", "%1lli%llx", 0, 0, 1, check_ll); + test_number_prefix(test, long, "0xA7", "%1li%lx", 0, 0, 1, check_long); + test_number_prefix(test, int, "0xA7", "%1i%x", 0, 0, 1, check_int); + test_number_prefix(test, short, "0xA7", "%1hi%hx", 0, 0, 1, check_short); + test_number_prefix(test, char, "0xA7", "%1hhi%hhx", 0, 0, 1, check_char); /* * 0x prefix in a field of width 2 using %x conversion: first field * converts to 0. Next field scan starts at the character after "0x". * Both fields will convert. */ - test_number_prefix(unsigned long long, "0xA7", "%2llx%llx", 0, 0xa7, 2, check_ull); - test_number_prefix(unsigned long, "0xA7", "%2lx%lx", 0, 0xa7, 2, check_ulong); - test_number_prefix(unsigned int, "0xA7", "%2x%x", 0, 0xa7, 2, check_uint); - test_number_prefix(unsigned short, "0xA7", "%2hx%hx", 0, 0xa7, 2, check_ushort); - test_number_prefix(unsigned char, "0xA7", "%2hhx%hhx", 0, 0xa7, 2, check_uchar); + test_number_prefix(test, unsigned long long, "0xA7", "%2llx%llx", 0, 0xa7, 2, check_ull); + test_number_prefix(test, unsigned long, "0xA7", "%2lx%lx", 0, 0xa7, 2, check_ulong); + test_number_prefix(test, unsigned int, "0xA7", "%2x%x", 0, 0xa7, 2, check_uint); + test_number_prefix(test, unsigned short, "0xA7", "%2hx%hx", 0, 0xa7, 2, check_ushort); + test_number_prefix(test, unsigned char, "0xA7", "%2hhx%hhx", 0, 0xa7, 2, check_uchar); /* * 0x prefix in a field of width 2 using %i conversion: first field @@ -666,124 +641,112 @@ static void __init numbers_prefix_overflow(void) * which will convert if can be interpreted as decimal but will fail * if it contains any hex digits (since no 0x prefix). */ - test_number_prefix(long long, "0x67", "%2lli%lli", 0, 67, 2, check_ll); - test_number_prefix(long, "0x67", "%2li%li", 0, 67, 2, check_long); - test_number_prefix(int, "0x67", "%2i%i", 0, 67, 2, check_int); - test_number_prefix(short, "0x67", "%2hi%hi", 0, 67, 2, check_short); - test_number_prefix(char, "0x67", "%2hhi%hhi", 0, 67, 2, check_char); - - test_number_prefix(long long, "0xA7", "%2lli%lli", 0, 0, 1, check_ll); - test_number_prefix(long, "0xA7", "%2li%li", 0, 0, 1, check_long); - test_number_prefix(int, "0xA7", "%2i%i", 0, 0, 1, check_int); - test_number_prefix(short, "0xA7", "%2hi%hi", 0, 0, 1, check_short); - test_number_prefix(char, "0xA7", "%2hhi%hhi", 0, 0, 1, check_char); -} - -#define _test_simple_strtoxx(T, fn, gen_fmt, expect, base) \ -do { \ - T got; \ - char *endp; \ - int len; \ - bool fail = false; \ - \ - total_tests++; \ - len = snprintf(test_buffer, BUF_SIZE, gen_fmt, expect); \ - got = (fn)(test_buffer, &endp, base); \ - pr_debug(#fn "(\"%s\", %d) -> " gen_fmt "\n", test_buffer, base, got); \ - if (got != (expect)) { \ - fail = true; \ - pr_warn(#fn "(\"%s\", %d): got " gen_fmt " expected " gen_fmt "\n", \ - test_buffer, base, got, expect); \ - } else if (endp != test_buffer + len) { \ - fail = true; \ - pr_warn(#fn "(\"%s\", %d) startp=0x%px got endp=0x%px expected 0x%px\n", \ - test_buffer, base, test_buffer, \ - test_buffer + len, endp); \ - } \ - \ - if (fail) \ - failed_tests++; \ + test_number_prefix(test, long long, "0x67", "%2lli%lli", 0, 67, 2, check_ll); + test_number_prefix(test, long, "0x67", "%2li%li", 0, 67, 2, check_long); + test_number_prefix(test, int, "0x67", "%2i%i", 0, 67, 2, check_int); + test_number_prefix(test, short, "0x67", "%2hi%hi", 0, 67, 2, check_short); + test_number_prefix(test, char, "0x67", "%2hhi%hhi", 0, 67, 2, check_char); + + test_number_prefix(test, long long, "0xA7", "%2lli%lli", 0, 0, 1, check_ll); + test_number_prefix(test, long, "0xA7", "%2li%li", 0, 0, 1, check_long); + test_number_prefix(test, int, "0xA7", "%2i%i", 0, 0, 1, check_int); + test_number_prefix(test, short, "0xA7", "%2hi%hi", 0, 0, 1, check_short); + test_number_prefix(test, char, "0xA7", "%2hhi%hhi", 0, 0, 1, check_char); +} + +#define _test_simple_strtoxx(test, T, fn, gen_fmt, expect, base) \ +do { \ + T got; \ + char *endp; \ + int len; \ + \ + len = snprintf(test_buffer, BUF_SIZE, gen_fmt, expect); \ + got = (fn)(test_buffer, &endp, base); \ + pr_debug(#fn "(\"%s\", %d) -> " gen_fmt "\n", test_buffer, base, got); \ + KUNIT_EXPECT_EQ_MSG(test, got, expect, #fn "(\"%s\", %d)", test_buffer, base); \ + KUNIT_EXPECT_PTR_EQ_MSG(test, endp, test_buffer + len, \ + #fn "(\"%s\", %d)", test_buffer, base); \ } while (0) -#define test_simple_strtoxx(T, fn, gen_fmt, base) \ +#define test_simple_strtoxx(test, T, fn, gen_fmt, base) \ do { \ int i; \ \ for (i = 0; i < ARRAY_SIZE(numbers); i++) { \ - _test_simple_strtoxx(T, fn, gen_fmt, (T)numbers[i], base); \ + _test_simple_strtoxx(test, T, fn, gen_fmt, (T)numbers[i], base);\ \ if (is_signed_type(T)) \ - _test_simple_strtoxx(T, fn, gen_fmt, \ + _test_simple_strtoxx(test, T, fn, gen_fmt, \ -(T)numbers[i], base); \ } \ } while (0) -static void __init test_simple_strtoull(void) +static void test_simple_strtoull(struct kunit *test) { - test_simple_strtoxx(unsigned long long, simple_strtoull, "%llu", 10); - test_simple_strtoxx(unsigned long long, simple_strtoull, "%llu", 0); - test_simple_strtoxx(unsigned long long, simple_strtoull, "%llx", 16); - test_simple_strtoxx(unsigned long long, simple_strtoull, "0x%llx", 16); - test_simple_strtoxx(unsigned long long, simple_strtoull, "0x%llx", 0); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "%llu", 10); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "%llu", 0); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "%llx", 16); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "0x%llx", 16); + test_simple_strtoxx(test, unsigned long long, simple_strtoull, "0x%llx", 0); } -static void __init test_simple_strtoll(void) +static void test_simple_strtoll(struct kunit *test) { - test_simple_strtoxx(long long, simple_strtoll, "%lld", 10); - test_simple_strtoxx(long long, simple_strtoll, "%lld", 0); - test_simple_strtoxx(long long, simple_strtoll, "%llx", 16); - test_simple_strtoxx(long long, simple_strtoll, "0x%llx", 16); - test_simple_strtoxx(long long, simple_strtoll, "0x%llx", 0); + test_simple_strtoxx(test, long long, simple_strtoll, "%lld", 10); + test_simple_strtoxx(test, long long, simple_strtoll, "%lld", 0); + test_simple_strtoxx(test, long long, simple_strtoll, "%llx", 16); + test_simple_strtoxx(test, long long, simple_strtoll, "0x%llx", 16); + test_simple_strtoxx(test, long long, simple_strtoll, "0x%llx", 0); } -static void __init test_simple_strtoul(void) +static void test_simple_strtoul(struct kunit *test) { - test_simple_strtoxx(unsigned long, simple_strtoul, "%lu", 10); - test_simple_strtoxx(unsigned long, simple_strtoul, "%lu", 0); - test_simple_strtoxx(unsigned long, simple_strtoul, "%lx", 16); - test_simple_strtoxx(unsigned long, simple_strtoul, "0x%lx", 16); - test_simple_strtoxx(unsigned long, simple_strtoul, "0x%lx", 0); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "%lu", 10); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "%lu", 0); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "%lx", 16); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "0x%lx", 16); + test_simple_strtoxx(test, unsigned long, simple_strtoul, "0x%lx", 0); } -static void __init test_simple_strtol(void) +static void test_simple_strtol(struct kunit *test) { - test_simple_strtoxx(long, simple_strtol, "%ld", 10); - test_simple_strtoxx(long, simple_strtol, "%ld", 0); - test_simple_strtoxx(long, simple_strtol, "%lx", 16); - test_simple_strtoxx(long, simple_strtol, "0x%lx", 16); - test_simple_strtoxx(long, simple_strtol, "0x%lx", 0); + test_simple_strtoxx(test, long, simple_strtol, "%ld", 10); + test_simple_strtoxx(test, long, simple_strtol, "%ld", 0); + test_simple_strtoxx(test, long, simple_strtol, "%lx", 16); + test_simple_strtoxx(test, long, simple_strtol, "0x%lx", 16); + test_simple_strtoxx(test, long, simple_strtol, "0x%lx", 0); } /* Selection of common delimiters/separators between numbers in a string. */ -static const char * const number_delimiters[] __initconst = { +static const char * const number_delimiters[] = { " ", ":", ",", "-", "/", }; -static void __init test_numbers(void) +static void test_numbers(struct kunit *test) { int i; /* String containing only one number. */ - numbers_simple(); + numbers_simple(test); /* String with multiple numbers separated by delimiter. */ for (i = 0; i < ARRAY_SIZE(number_delimiters); i++) { - numbers_list(number_delimiters[i]); + numbers_list(test, number_delimiters[i]); /* Field width may be longer than actual field digits. */ - numbers_list_field_width_typemax(number_delimiters[i]); + numbers_list_field_width_typemax(test, number_delimiters[i]); /* Each field width exactly length of actual field digits. */ - numbers_list_field_width_val_width(number_delimiters[i]); + numbers_list_field_width_val_width(test, number_delimiters[i]); } /* Slice continuous sequence of digits using field widths. */ - numbers_slice(); + numbers_slice(test); - numbers_prefix_overflow(); + numbers_prefix_overflow(test); } -static void __init selftest(void) +static void scanf_test(struct kunit *test) { test_buffer = kmalloc(BUF_SIZE, GFP_KERNEL); if (!test_buffer) @@ -797,18 +760,29 @@ static void __init selftest(void) prandom_seed_state(&rnd_state, 3141592653589793238ULL); - test_numbers(); + test_numbers(test); - test_simple_strtoull(); - test_simple_strtoll(); - test_simple_strtoul(); - test_simple_strtol(); + test_simple_strtoull(test); + test_simple_strtoll(test); + test_simple_strtoul(test); + test_simple_strtol(test); kfree(fmt_buffer); kfree(test_buffer); } -KSTM_MODULE_LOADERS(test_scanf); +static struct kunit_case scanf_test_cases[] = { + KUNIT_CASE(scanf_test), + {} +}; + +static struct kunit_suite scanf_test_suite = { + .name = "scanf", + .test_cases = scanf_test_cases, +}; + +kunit_test_suite(scanf_test_suite); + MODULE_AUTHOR("Richard Fitzgerald <rf(a)opensource.cirrus.com>"); MODULE_DESCRIPTION("Test cases for sscanf facility"); MODULE_LICENSE("GPL v2"); diff --git a/tools/testing/selftests/lib/Makefile b/tools/testing/selftests/lib/Makefile index c52fe3ad8e98..4afda556151f 100644 --- a/tools/testing/selftests/lib/Makefile +++ b/tools/testing/selftests/lib/Makefile @@ -4,5 +4,5 @@ # No binaries, but make sure arg-less "make" doesn't trigger "run_tests" all: -TEST_PROGS := printf.sh bitmap.sh prime_numbers.sh scanf.sh +TEST_PROGS := printf.sh bitmap.sh prime_numbers.sh include ../lib.mk diff --git a/tools/testing/selftests/lib/config b/tools/testing/selftests/lib/config index dc15aba8d0a3..80b55a504868 100644 --- a/tools/testing/selftests/lib/config +++ b/tools/testing/selftests/lib/config @@ -1,5 +1,4 @@ CONFIG_TEST_PRINTF=m -CONFIG_TEST_SCANF=m CONFIG_TEST_BITMAP=m CONFIG_PRIME_NUMBERS=m CONFIG_TEST_BITOPS=m diff --git a/tools/testing/selftests/lib/scanf.sh b/tools/testing/selftests/lib/scanf.sh deleted file mode 100755 index b59b8ba561c3..000000000000 --- a/tools/testing/selftests/lib/scanf.sh +++ /dev/null @@ -1,4 +0,0 @@ -#!/bin/sh -# SPDX-License-Identifier: GPL-2.0 -# Tests the scanf infrastructure using test_scanf kernel module. -$(dirname $0)/../kselftest/module.sh "scanf" test_scanf --- base-commit: 18fe18c99c8d90d77c7ed6b42f48fa5b4e5c99c3 change-id: 20250131-scanf-kunit-convert-f70dc33bb34c Best regards, -- Tamir Duberstein <tamird(a)gmail.com>

3 months

3
9
0 0

[PATCH 0/2] tools/nolibc: add support for directory access

by Thomas Weißschuh

Add support opendir(), readdir(), closedir() and friends. Signed-off-by: Thomas Weißschuh <linux(a)weissschuh.net> --- Thomas Weißschuh (2): tools/nolibc: add support for sys_llseek() tools/nolibc: add support for directory access tools/include/nolibc/stdio.h | 76 ++++++++++++++++++++++++++++ tools/include/nolibc/sys.h | 29 ++++++++++- tools/include/nolibc/types.h | 5 ++ tools/testing/selftests/nolibc/nolibc-test.c | 37 ++++++++++++++ 4 files changed, 146 insertions(+), 1 deletion(-) --- base-commit: d3d90cc2891c9cf4ecba7b85c0af716ab755c7e5 change-id: 20250130-nolibc-dir-980c2e2b661a Best regards, -- Thomas Weißschuh <linux(a)weissschuh.net>

3 months, 1 week

2
6
0 0

[PATCH net-next 0/1] selftests: net: Add support for testing SO_RCVMARK and SO_RCVPRIORITY

by Anna Emese Nyiri

After submitting the patch implementing the SO_RCVPRIORITY socket option (https://lore.kernel.org/netdev/20241213084457.45120-5-annaemesenyiri@gmail.…), it was requested to include a test for the functionality. As a first step, write a test that also validates the SO_RCVMARK value, since no existing test covers it. If this combined test is not suitable, I will provide a standalone test specifically for SO_RCVPRIORITY and submit it separately. Anna Emese Nyiri (1): add support for testing SO_RCVMARK and SO_RCVPRIORITY tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/so_rcv_listener.c | 147 ++++++++++++++++++ tools/testing/selftests/net/test_so_rcv.sh | 56 +++++++ 3 files changed, 204 insertions(+) create mode 100644 tools/testing/selftests/net/so_rcv_listener.c create mode 100755 tools/testing/selftests/net/test_so_rcv.sh -- 2.43.0

3 months, 1 week

5
6
0 0

[PATCH bpf-next v7 0/5] Support eliding map lookup nullness

by Daniel Xu

This patch allows progs to elide a null check on statically known map lookup keys. In other words, if the verifier can statically prove that the lookup will be in-bounds, allow the prog to drop the null check. This is useful for two reasons: 1. Large numbers of nullness checks (especially when they cannot fail) unnecessarily pushes prog towards BPF_COMPLEXITY_LIMIT_JMP_SEQ. 2. It forms a tighter contract between programmer and verifier. For (1), bpftrace is starting to make heavier use of percpu scratch maps. As a result, for user scripts with large number of unrolled loops, we are starting to hit jump complexity verification errors. These percpu lookups cannot fail anyways, as we only use static key values. Eliding nullness probably results in less work for verifier as well. For (2), percpu scratch maps are often used as a larger stack, as the currrent stack is limited to 512 bytes. In these situations, it is desirable for the programmer to express: "this lookup should never fail, and if it does, it means I messed up the code". By omitting the null check, the programmer can "ask" the verifier to double check the logic. === Changelog === Changes in v7: * Use more accurate frame number when marking precise * Add test for non-stack key * Test for marking stack slot precise Changes in v6: * Use is_spilled_scalar_reg() helper and remove unnecessary comment * Add back deleted selftest with different helper to dirty dst buffer * Check size of spill is exactly key_size and update selftests * Read slot_type from correct offset into the spi * Rewrite selftests in C where possible * Mark constant map keys as precise Changes in v5: * Dropped all acks * Use s64 instead of long for const_map_key * Ensure stack slot contains spilled reg before accessing spilled_ptr * Ensure spilled reg is a scalar before accessing tnum const value * Fix verifier selftest for 32-bit write to write at 8 byte alignment to ensure spill is tracked * Introduce more precise tracking of helper stack accesses * Do constant map key extraction as part of helper argument processing and then remove duplicated stack checks * Use ret_flag instead of regs[BPF_REG_0].type * Handle STACK_ZERO * Fix bug in bpf_load_hdr_opt() arg annotation Changes in v4: * Only allow for CAP_BPF * Add test for stack growing upwards * Improve comment about stack growing upwards Changes in v3: * Check if stack is (erroneously) growing upwards * Mention in commit message why existing tests needed change Changes in v2: * Added a check for when R2 is not a ptr to stack * Added a check for when stack is uninitialized (no stack slot yet) * Updated existing tests to account for null elision * Added test case for when R2 can be both const and non-const Daniel Xu (5): bpf: verifier: Add missing newline on verbose() call bpf: tcp: Mark bpf_load_hdr_opt() arg2 as read-write bpf: verifier: Refactor helper access type tracking bpf: verifier: Support eliding map lookup nullness bpf: selftests: verifier: Add nullness elision tests kernel/bpf/verifier.c | 139 ++++++++++--- net/core/filter.c | 2 +- .../testing/selftests/bpf/progs/dynptr_fail.c | 6 +- tools/testing/selftests/bpf/progs/iters.c | 14 +- .../selftests/bpf/progs/map_kptr_fail.c | 2 +- .../selftests/bpf/progs/test_global_func10.c | 2 +- .../selftests/bpf/progs/uninit_stack.c | 5 +- .../bpf/progs/verifier_array_access.c | 188 ++++++++++++++++++ .../bpf/progs/verifier_basic_stack.c | 2 +- .../selftests/bpf/progs/verifier_const_or.c | 4 +- .../progs/verifier_helper_access_var_len.c | 12 +- .../selftests/bpf/progs/verifier_int_ptr.c | 2 +- .../selftests/bpf/progs/verifier_map_in_map.c | 2 +- .../selftests/bpf/progs/verifier_mtu.c | 2 +- .../selftests/bpf/progs/verifier_raw_stack.c | 4 +- .../selftests/bpf/progs/verifier_unpriv.c | 2 +- .../selftests/bpf/progs/verifier_var_off.c | 8 +- tools/testing/selftests/bpf/verifier/calls.c | 2 +- .../testing/selftests/bpf/verifier/map_kptr.c | 2 +- 19 files changed, 331 insertions(+), 69 deletions(-) -- 2.47.1

3 months, 1 week

4
11
0 0

[PATCH] selftests/vDSO: Fix undefined CLONE_NEWTIME by including

by Purva Yeshi

Fix the build failure caused by the undefined `CLONE_NEWTIME`. Include the `linux/sched.h` header file where the function is defined to ensure successful compilation of the selftests. Signed-off-by: Purva Yeshi <purvayeshi550(a)gmail.com> --- tools/testing/selftests/vDSO/vdso_test_getrandom.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/vDSO/vdso_test_getrandom.c b/tools/testing/selftests/vDSO/vdso_test_getrandom.c index 95057f7567db..b2c9cf15878b 100644 --- a/tools/testing/selftests/vDSO/vdso_test_getrandom.c +++ b/tools/testing/selftests/vDSO/vdso_test_getrandom.c @@ -29,6 +29,8 @@ #include "vdso_config.h" #include "vdso_call.h" +#include <linux/sched.h> + #ifndef timespecsub #define timespecsub(tsp, usp, vsp) \ do { \ -- 2.34.1

3 months, 1 week

2
5
0 0

[PATCH v2 0/5] selftests/nolibc: test kernel configuration cleanups

by Thomas Weißschuh

A few cleanups and optimizations for the management of the kernel configuration. Signed-off-by: Thomas Weißschuh <linux(a)weissschuh.net> --- Changes in v2: - Rebase on current torvalds/master - Call "make defconfig" separately - Link to v1: https://lore.kernel.org/r/20250122-nolibc-config-v1-0-a697db968b49@weisssch… --- Thomas Weißschuh (5): selftests/nolibc: drop custom EXTRACONFIG functionality selftests/nolibc: drop call to prepare target selftests/nolibc: drop call to mrproper target selftests/nolibc: execute defconfig before other targets selftests/nolibc: always keep test kernel configuration up to date tools/testing/selftests/nolibc/Makefile | 17 +++++------------ tools/testing/selftests/nolibc/run-tests.sh | 7 +++---- 2 files changed, 8 insertions(+), 16 deletions(-) --- base-commit: 21266b8df5224c4f677acf9f353eecc9094731f0 change-id: 20250122-nolibc-config-d639e1612c93 Best regards, -- Thomas Weißschuh <linux(a)weissschuh.net>

3 months, 1 week

2
12
0 0

[PATCH 00/16] selftest/mm: Remove warnings found by adding compiler flags

by Muhammad Usama Anjum

Recently, I reviewed a patch on the mm/kselftest mailing list about a test which had obvious type mismatch fix in it. It was strange why that wasn't caught during development and when patch was accepted. This led me to discover that those extra compiler options to catch these warnings aren't being used. When I added them, I found tens of warnings in just mm suite. In this series, I'm fixing those warnings. The last check adds the compiler flags with which the warnings have been caught. Muhammad Usama Anjum (16): selftests/mm: remove argc and argv unused parameters selftests/mm: Fix unused parameter warnings selftests/mm: Fix unused parameter warnings selftests/mm: Fix type mismatch warnings selftests/mm: kselftest_harness: Fix warnings selftests/mm: cow: remove unused variables and fix type mismatch errors selftests/mm: hmm-tests: Remove always false expressions selftests/mm: guard-pages: Fix type mismatch warnings selftests/mm: hugetlb-madvise: fix type mismatch issues selftests/mm: hugepage-vmemmap: fix type mismatch warnings selftests/mm: hugetlb-read-hwpoison: Fix type mismatch warnings selftests/mm: khugepaged: Fix type mismatch warnings selftests/mm: protection_keys: Fix variables types mismatch warnings selftests/mm: thuge-gen: Fix type mismatch warnings selftests/mm: uffd-*: Fix all type mismatch warnings selftests/mm: Makefile: Add the compiler flags tools/testing/selftests/kselftest_harness.h | 6 +- tools/testing/selftests/mm/Makefile | 1 + tools/testing/selftests/mm/compaction_test.c | 4 +- tools/testing/selftests/mm/cow.c | 48 ++++++++------- tools/testing/selftests/mm/droppable.c | 2 +- tools/testing/selftests/mm/guard-pages.c | 4 +- tools/testing/selftests/mm/gup_longterm.c | 5 +- tools/testing/selftests/mm/hmm-tests.c | 4 +- tools/testing/selftests/mm/hugepage-vmemmap.c | 5 +- tools/testing/selftests/mm/hugetlb-madvise.c | 4 +- .../selftests/mm/hugetlb-read-hwpoison.c | 6 +- .../selftests/mm/hugetlb-soft-offline.c | 2 +- tools/testing/selftests/mm/hugetlb_dio.c | 2 +- .../selftests/mm/hugetlb_fault_after_madv.c | 6 +- .../selftests/mm/hugetlb_madv_vs_map.c | 8 +-- tools/testing/selftests/mm/khugepaged.c | 16 ++--- .../selftests/mm/ksm_functional_tests.c | 6 +- tools/testing/selftests/mm/ksm_tests.c | 17 +++--- tools/testing/selftests/mm/madv_populate.c | 2 +- tools/testing/selftests/mm/map_populate.c | 2 +- tools/testing/selftests/mm/memfd_secret.c | 6 +- .../testing/selftests/mm/mlock-random-test.c | 6 +- tools/testing/selftests/mm/mlock2-tests.c | 2 +- tools/testing/selftests/mm/on-fault-limit.c | 2 +- tools/testing/selftests/mm/pkey-x86.h | 4 +- .../selftests/mm/pkey_sighandler_tests.c | 21 ++++--- tools/testing/selftests/mm/protection_keys.c | 34 ++++++----- tools/testing/selftests/mm/soft-dirty.c | 8 +-- .../selftests/mm/split_huge_page_test.c | 4 +- tools/testing/selftests/mm/thuge-gen.c | 10 ++-- tools/testing/selftests/mm/uffd-common.c | 24 ++++---- tools/testing/selftests/mm/uffd-common.h | 2 +- tools/testing/selftests/mm/uffd-stress.c | 4 +- tools/testing/selftests/mm/uffd-unit-tests.c | 58 +++++++++---------- tools/testing/selftests/mm/uffd-wp-mremap.c | 2 +- .../selftests/mm/virtual_address_range.c | 2 +- 36 files changed, 180 insertions(+), 159 deletions(-) -- 2.39.5

3 months, 1 week

6
25
0 0

2025

2024

2023

2022

2021

2020

2019

2018

2017

Linux-kselftest-mirror