May 2023 - Linux-stable-mirror

[PATCH v6 1/2] ceph: add a dedicated private data for netfs rreq

by xiubli＠redhat.com

From: Xiubo Li <xiubli(a)redhat.com> We need to save the 'f_ra.ra_pages' to expand the readahead window later. Cc: stable(a)vger.kernel.org Fixes: 49870056005c ("ceph: convert ceph_readpages to ceph_readahead") URL: https://lore.kernel.org/ceph-devel/20230504082510.247-1-sehuww@mail.scut.ed… URL: https://www.spinics.net/lists/ceph-users/msg76183.html Cc: Hu Weiwen <sehuww(a)mail.scut.edu.cn> Signed-off-by: Xiubo Li <xiubli(a)redhat.com> --- fs/ceph/addr.c | 45 ++++++++++++++++++++++++++++++++++----------- fs/ceph/super.h | 13 +++++++++++++ 2 files changed, 47 insertions(+), 11 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 3b20873733af..93fff1a7373f 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -404,18 +404,28 @@ static int ceph_init_request(struct netfs_io_request *rreq, struct file *file) { struct inode *inode = rreq->inode; int got = 0, want = CEPH_CAP_FILE_CACHE; + struct ceph_netfs_request_data *priv; int ret = 0; if (rreq->origin != NETFS_READAHEAD) return 0; + priv = kzalloc(sizeof(*priv), GFP_NOFS); + if (!priv) + return -ENOMEM; + if (file) { struct ceph_rw_context *rw_ctx; struct ceph_file_info *fi = file->private_data; + priv->file_ra_pages = file->f_ra.ra_pages; + priv->file_ra_disabled = file->f_mode & FMODE_RANDOM; + rw_ctx = ceph_find_rw_context(fi); - if (rw_ctx) + if (rw_ctx) { + rreq->netfs_priv = priv; return 0; + } } /* @@ -425,27 +435,40 @@ static int ceph_init_request(struct netfs_io_request *rreq, struct file *file) ret = ceph_try_get_caps(inode, CEPH_CAP_FILE_RD, want, true, &got); if (ret < 0) { dout("start_read %p, error getting cap\n", inode); - return ret; + goto out; } if (!(got & want)) { dout("start_read %p, no cache cap\n", inode); - return -EACCES; + ret = -EACCES; + goto out; + } + if (ret == 0) { + ret = -EACCES; + goto out; } - if (ret == 0) - return -EACCES; - rreq->netfs_priv = (void *)(uintptr_t)got; - return 0; + priv->caps = got; + rreq->netfs_priv = priv; + +out: + if (ret < 0) + kfree(priv); + + return ret; } static void ceph_netfs_free_request(struct netfs_io_request *rreq) { - struct ceph_inode_info *ci = ceph_inode(rreq->inode); - int got = (uintptr_t)rreq->netfs_priv; + struct ceph_netfs_request_data *priv = rreq->netfs_priv; + + if (!priv) + return; - if (got) - ceph_put_cap_refs(ci, got); + if (priv->caps) + ceph_put_cap_refs(ceph_inode(rreq->inode), priv->caps); + kfree(priv); + rreq->netfs_priv = NULL; } const struct netfs_request_ops ceph_netfs_ops = { diff --git a/fs/ceph/super.h b/fs/ceph/super.h index a226d36b3ecb..3a24b7974d46 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -470,6 +470,19 @@ struct ceph_inode_info { #endif }; +struct ceph_netfs_request_data { + int caps; + + /* + * Maximum size of a file readahead request. + * The fadvise could update the bdi's default ra_pages. + */ + unsigned int file_ra_pages; + + /* Set it if fadvise disables file readahead entirely */ + bool file_ra_disabled; +}; + static inline struct ceph_inode_info * ceph_inode(const struct inode *inode) { -- 2.40.1

12 months

2
1
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[PATCHv2 dlm/next] fs: dlm: avoid F_SETLKW plock op lookup collisions

by Alexander Aring

This patch fixes a possible plock op collisions when using F_SETLKW lock requests and fsid, number and owner are not enough to identify a result for a pending request. The ltp testcases [0] and [1] are examples when this is not enough in case of using classic posix locks with threads and open filedescriptor posix locks. The idea to fix the issue here is to place all lock request in order. In case of non F_SETLKW lock request (indicated if wait is set or not) the lock requests are ordered inside the recv_list. If a result comes back the right plock op can be found by the first plock_op in recv_list which has not info.wait set. This can be done only by non F_SETLKW plock ops as dlm_controld always reads a specific plock op (list_move_tail() from send_list to recv_mlist) and write the result immediately back. This behaviour is for F_SETLKW not possible as multiple waiters can be get a result back in an random order. To avoid a collisions in cases like [0] or [1] this patch adds more fields to compare the plock operations as the lock request is the same. This is also being made in NFS to find an result for an asynchronous F_SETLKW lock request [2][3]. We still can't find the exact lock request for a specific result if the lock request is the same, but if this is the case we don't care the order how the identical lock requests get their result back to grant the lock. [0] https://gitlab.com/netcoder/ltp/-/blob/dlm_fcntl_owner_testcase/testcases/k… [1] https://gitlab.com/netcoder/ltp/-/blob/dlm_fcntl_owner_testcase/testcases/k… [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/inc… [3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/… Cc: stable(a)vger.kernel.org Signed-off-by: Alexander Aring <aahringo(a)redhat.com> --- change since v2: - don't split recv_list into recv_setlkw_list fs/dlm/plock.c | 43 ++++++++++++++++++++++++++++++------------- 1 file changed, 30 insertions(+), 13 deletions(-) diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c index 31bc601ee3d8..53d17dbbb716 100644 --- a/fs/dlm/plock.c +++ b/fs/dlm/plock.c @@ -391,7 +391,7 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count, if (op->info.flags & DLM_PLOCK_FL_CLOSE) list_del(&op->list); else - list_move(&op->list, &recv_list); + list_move_tail(&op->list, &recv_list); memcpy(&info, &op->info, sizeof(info)); } spin_unlock(&ops_lock); @@ -430,19 +430,36 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count, return -EINVAL; spin_lock(&ops_lock); - list_for_each_entry(iter, &recv_list, list) { - if (iter->info.fsid == info.fsid && - iter->info.number == info.number && - iter->info.owner == info.owner) { - list_del_init(&iter->list); - memcpy(&iter->info, &info, sizeof(info)); - if (iter->data) - do_callback = 1; - else - iter->done = 1; - op = iter; - break; + if (info.wait) { + list_for_each_entry(iter, &recv_list, list) { + if (iter->info.fsid == info.fsid && + iter->info.number == info.number && + iter->info.owner == info.owner && + iter->info.pid == info.pid && + iter->info.start == info.start && + iter->info.end == info.end && + iter->info.ex == info.ex && + iter->info.wait) { + op = iter; + break; + } } + } else { + list_for_each_entry(iter, &recv_list, list) { + if (!iter->info.wait) { + op = iter; + break; + } + } + } + + if (op) { + list_del_init(&op->list); + memcpy(&op->info, &info, sizeof(info)); + if (op->data) + do_callback = 1; + else + op->done = 1; } spin_unlock(&ops_lock); -- 2.31.1

12 months

2
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[PATCH] tpm, tpm_tis: correct tpm_tis_flags enumeration values

by Lino Sanfilippo

From: Lino Sanfilippo <l.sanfilippo(a)kunbus.com> With commit 858e8b792d06 ("tpm, tpm_tis: Avoid cache incoherency in test for interrupts") bit accessor functions are used to access flags in tpm_tis_data->flags. However these functions expect bit numbers, while the flags are defined as bit masks in enum tpm_tis_flag. Fix this inconsistency by using numbers instead of masks also for the flags in the enum. Reported-by: Pavel Machek <pavel(a)denx.de> Fixes: 858e8b792d06 ("tpm, tpm_tis: Avoid cache incoherency in test for interrupts") Signed-off-by: Lino Sanfilippo <l.sanfilippo(a)kunbus.com> Cc: stable(a)vger.kernel.org --- drivers/char/tpm/tpm_tis_core.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h index e978f457fd4d..610bfadb6acf 100644 --- a/drivers/char/tpm/tpm_tis_core.h +++ b/drivers/char/tpm/tpm_tis_core.h @@ -84,10 +84,10 @@ enum tis_defaults { #define ILB_REMAP_SIZE 0x100 enum tpm_tis_flags { - TPM_TIS_ITPM_WORKAROUND = BIT(0), - TPM_TIS_INVALID_STATUS = BIT(1), - TPM_TIS_DEFAULT_CANCELLATION = BIT(2), - TPM_TIS_IRQ_TESTED = BIT(3), + TPM_TIS_ITPM_WORKAROUND = 0, + TPM_TIS_INVALID_STATUS = 1, + TPM_TIS_DEFAULT_CANCELLATION = 2, + TPM_TIS_IRQ_TESTED = 3, }; struct tpm_tis_data { base-commit: 7877cb91f1081754a1487c144d85dc0d2e2e7fc4 -- 2.40.1

1 year

2
1
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[PATCH v5 1/3] usb: gadget: udc: core: Offload usb_udc_vbus_handler processing

by Badhri Jagan Sridharan

usb_udc_vbus_handler() can be invoked from interrupt context by irq handlers of the gadget drivers, however, usb_udc_connect_control() has to run in non-atomic context due to the following: a. Some of the gadget driver implementations expect the ->pullup callback to be invoked in non-atomic context. b. usb_gadget_disconnect() acquires udc_lock which is a mutex. Hence offload invocation of usb_udc_connect_control() to workqueue. Cc: stable(a)vger.kernel.org Fixes: 1016fc0c096c ("USB: gadget: Fix obscure lockdep violation for udc_mutex") Signed-off-by: Badhri Jagan Sridharan <badhri(a)google.com> --- Changes since v1: - Address Alan Stern's comment on usb_udc_vbus_handler invocation from atomic context: * vbus_events_lock is now a spinlock and allocations in * usb_udc_vbus_handler are atomic now. Changes since v2: - Addressing Alan Stern's comments: ** connect_lock is now held by callers of * usb_gadget_pullup_update_locked() and gadget_(un)bind_driver() does * notdirectly hold the lock. ** Both usb_gadget_(dis)connect() and usb_udc_vbus_handler() would * set/clear udc->vbus and invoke usb_gadget_pullup_update_locked. ** Add "unbinding" to prevent new connections after the gadget is being * unbound. Changes since v3: ** Made a minor cleanup which I missed to do in v3 in * usb_udc_vbus_handler(). Changes since v4: - Addressing Alan Stern's comments: ** usb_udc_vbus_handler() now offloads invocation of usb_udc_connect_control() * from workqueue. ** Dropped vbus_events list as this was redundant. Updating to the * latest value is suffice --- drivers/usb/gadget/udc/core.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index 52e6d2e84e35..44a9f32679b5 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -48,6 +48,7 @@ struct usb_udc { struct list_head list; bool vbus; bool started; + struct work_struct vbus_work; }; static struct class *udc_class; @@ -1086,6 +1087,13 @@ static void usb_udc_connect_control(struct usb_udc *udc) usb_gadget_disconnect(udc->gadget); } +static void vbus_event_work(struct work_struct *work) +{ + struct usb_udc *udc = container_of(work, struct usb_udc, vbus_work); + + usb_udc_connect_control(udc); +} + /** * usb_udc_vbus_handler - updates the udc core vbus status, and try to * connect or disconnect gadget @@ -1094,6 +1102,13 @@ static void usb_udc_connect_control(struct usb_udc *udc) * * The udc driver calls it when it wants to connect or disconnect gadget * according to vbus status. + * + * This function can be invoked from interrupt context by irq handlers of the gadget drivers, + * however, usb_udc_connect_control() has to run in non-atomic context due to the following: + * a. Some of the gadget driver implementations expect the ->pullup callback to be invoked in + * non-atomic context. + * b. usb_gadget_disconnect() acquires udc_lock which is a mutex. + * Hence offload invocation of usb_udc_connect_control() to workqueue. */ void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status) { @@ -1101,7 +1116,7 @@ void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status) if (udc) { udc->vbus = status; - usb_udc_connect_control(udc); + schedule_work(&udc->vbus_work); } } EXPORT_SYMBOL_GPL(usb_udc_vbus_handler); @@ -1328,6 +1343,7 @@ int usb_add_gadget(struct usb_gadget *gadget) mutex_lock(&udc_lock); list_add_tail(&udc->list, &udc_list); mutex_unlock(&udc_lock); + INIT_WORK(&udc->vbus_work, vbus_event_work); ret = device_add(&udc->dev); if (ret) @@ -1558,6 +1574,7 @@ static void gadget_unbind_driver(struct device *dev) kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); + cancel_work_sync(&udc->vbus_work); usb_gadget_disconnect(gadget); usb_gadget_disable_async_callbacks(udc); if (gadget->irq) base-commit: 046895105d9666ab56e86ce8dd9786f8003125c6 -- 2.41.0.rc0.172.g3f132b7071-goog

1 year

3
11
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[PATCH v5 0/2] KEYS: asymmetric: Copy sig and digest in public_key_verify_signature()

by Roberto Sassu

From: Roberto Sassu <roberto.sassu(a)huawei.com> Changelog: v4: - Replace sg_init_table()/sg_set_buf() with sg_init_one() (suggested by Eric) v3: v2: - Add patch by Herbert to take only the needed bytes for a MPI from the scatterlist - Use only one scatterlist for signature and digest (suggested by Eric) - Rename key variable to buf (suggested by Eric) - Rename key_max_len variable to buf_len - Use size_t for the buf_len variable instead of u32 v1: - Unconditionally copy the signature and digest to the buffer to keep the code simple (suggested by Eric) Herbert Xu (1): lib/mpi: Fix buffer overrun when SG is too long Roberto Sassu (1): KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() crypto/asymmetric_keys/public_key.c | 38 ++++++++++++++++------------- lib/mpi/mpicoder.c | 3 ++- 2 files changed, 23 insertions(+), 18 deletions(-) -- 2.25.1

1 year

8
24
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[PATCH net 0/6] mptcp: Fixes for connect timeout, access annotations, and subflow init

by Mat Martineau

Patch 1 allows the SO_SNDTIMEO sockopt to correctly change the connect timeout on MPTCP sockets. Patches 2-5 add READ_ONCE()/WRITE_ONCE() annotations to fix KCSAN issues. Patch 6 correctly initializes some subflow fields on outgoing connections. Signed-off-by: Mat Martineau <martineau(a)kernel.org> --- Paolo Abeni (6): mptcp: fix connect timeout handling mptcp: add annotations around msk->subflow accesses mptcp: consolidate passive msk socket initialization mptcp: fix data race around msk->first access mptcp: add annotations around sk->sk_shutdown accesses mptcp: fix active subflow finalization net/mptcp/protocol.c | 140 ++++++++++++++++++++++++++++----------------------- net/mptcp/protocol.h | 15 +++--- net/mptcp/subflow.c | 28 +---------- 3 files changed, 88 insertions(+), 95 deletions(-) --- base-commit: 448a5ce1120c5bdbce1f1ccdabcd31c7d029f328 change-id: 20230531-send-net-20230531-428ddf43b4ed Best regards, -- Mat Martineau <martineau(a)kernel.org>

1 year

2
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FAILED: patch "[PATCH] ipv{4,6}/raw: fix output xfrm lookup wrt protocol" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 3632679d9e4f879f49949bb5b050e0de553e4739 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023052622-such-rearview-04a6@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: 3632679d9e4f ("ipv{4,6}/raw: fix output xfrm lookup wrt protocol") 91d0b78c5177 ("inet: Add IP_LOCAL_PORT_RANGE socket option") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3632679d9e4f879f49949bb5b050e0de553e4739 Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel <nicolas.dichtel(a)6wind.com> Date: Mon, 22 May 2023 14:08:20 +0200 Subject: [PATCH] ipv{4,6}/raw: fix output xfrm lookup wrt protocol With a raw socket bound to IPPROTO_RAW (ie with hdrincl enabled), the protocol field of the flow structure, build by raw_sendmsg() / rawv6_sendmsg()), is set to IPPROTO_RAW. This breaks the ipsec policy lookup when some policies are defined with a protocol in the selector. For ipv6, the sin6_port field from 'struct sockaddr_in6' could be used to specify the protocol. Just accept all values for IPPROTO_RAW socket. For ipv4, the sin_port field of 'struct sockaddr_in' could not be used without breaking backward compatibility (the value of this field was never checked). Let's add a new kind of control message, so that the userland could specify which protocol is used. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") CC: stable(a)vger.kernel.org Signed-off-by: Nicolas Dichtel <nicolas.dichtel(a)6wind.com> Link: https://lore.kernel.org/r/20230522120820.1319391-1-nicolas.dichtel@6wind.com Signed-off-by: Paolo Abeni <pabeni(a)redhat.com> diff --git a/include/net/ip.h b/include/net/ip.h index c3fffaa92d6e..acec504c469a 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -76,6 +76,7 @@ struct ipcm_cookie { __be32 addr; int oif; struct ip_options_rcu *opt; + __u8 protocol; __u8 ttl; __s16 tos; char priority; @@ -96,6 +97,7 @@ static inline void ipcm_init_sk(struct ipcm_cookie *ipcm, ipcm->sockc.tsflags = inet->sk.sk_tsflags; ipcm->oif = READ_ONCE(inet->sk.sk_bound_dev_if); ipcm->addr = inet->inet_saddr; + ipcm->protocol = inet->inet_num; } #define IPCB(skb) ((struct inet_skb_parm*)((skb)->cb)) diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h index 4b7f2df66b99..e682ab628dfa 100644 --- a/include/uapi/linux/in.h +++ b/include/uapi/linux/in.h @@ -163,6 +163,7 @@ struct in_addr { #define IP_MULTICAST_ALL 49 #define IP_UNICAST_IF 50 #define IP_LOCAL_PORT_RANGE 51 +#define IP_PROTOCOL 52 #define MCAST_EXCLUDE 0 #define MCAST_INCLUDE 1 diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index b511ff0adc0a..8e97d8d4cc9d 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -317,7 +317,14 @@ int ip_cmsg_send(struct sock *sk, struct msghdr *msg, struct ipcm_cookie *ipc, ipc->tos = val; ipc->priority = rt_tos2priority(ipc->tos); break; - + case IP_PROTOCOL: + if (cmsg->cmsg_len != CMSG_LEN(sizeof(int))) + return -EINVAL; + val = *(int *)CMSG_DATA(cmsg); + if (val < 1 || val > 255) + return -EINVAL; + ipc->protocol = val; + break; default: return -EINVAL; } @@ -1761,6 +1768,9 @@ int do_ip_getsockopt(struct sock *sk, int level, int optname, case IP_LOCAL_PORT_RANGE: val = inet->local_port_range.hi << 16 | inet->local_port_range.lo; break; + case IP_PROTOCOL: + val = inet_sk(sk)->inet_num; + break; default: sockopt_release_sock(sk); return -ENOPROTOOPT; diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index ff712bf2a98d..eadf1c9ef7e4 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -532,6 +532,9 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) } ipcm_init_sk(&ipc, inet); + /* Keep backward compat */ + if (hdrincl) + ipc.protocol = IPPROTO_RAW; if (msg->msg_controllen) { err = ip_cmsg_send(sk, msg, &ipc, false); @@ -599,7 +602,7 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) flowi4_init_output(&fl4, ipc.oif, ipc.sockc.mark, tos, RT_SCOPE_UNIVERSE, - hdrincl ? IPPROTO_RAW : sk->sk_protocol, + hdrincl ? ipc.protocol : sk->sk_protocol, inet_sk_flowi_flags(sk) | (hdrincl ? FLOWI_FLAG_KNOWN_NH : 0), daddr, saddr, 0, 0, sk->sk_uid); diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 7d0adb612bdd..44ee7a2e72ac 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -793,7 +793,8 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) if (!proto) proto = inet->inet_num; - else if (proto != inet->inet_num) + else if (proto != inet->inet_num && + inet->inet_num != IPPROTO_RAW) return -EINVAL; if (proto > 255)

1 year

3
3
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5.4-stable patches

by Jens Axboe

Hi, Greg, can you include these in the 5.4-stable batch for the next release? Lee reported and issue that really ended up being two separate bugs, I fixed these last week and Lee has tested them as good. No real upstream commits exists for these, as we fixed them separately with refactoring and cleanup of this code. -- Jens Axboe

1 year

3
3
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[PATCH] drm/i915/gt: Use the correct error value when kernel_context() fails

by Andi Shyti

kernel_context() returns an error pointer. Use pointer-error conversion functions to evaluate its return value, rather than checking for a '0' return. Fixes: eb5c10cbbc2f ("drm/i915: Remove I915_USER_PRIORITY_SHIFT") Reported-by: Dan Carpenter <dan.carpenter(a)linaro.org> Signed-off-by: Andi Shyti <andi.shyti(a)linux.intel.com> Cc: Chris Wilson < chris(a)chris-wilson.co.uk> Cc: <stable(a)vger.kernel.org> # v5.13+ --- drivers/gpu/drm/i915/gt/selftest_execlists.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c index 736b89a8ecf54..4202df5b8c122 100644 --- a/drivers/gpu/drm/i915/gt/selftest_execlists.c +++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c @@ -1530,8 +1530,8 @@ static int live_busywait_preempt(void *arg) struct drm_i915_gem_object *obj; struct i915_vma *vma; enum intel_engine_id id; - int err = -ENOMEM; u32 *map; + int err; /* * Verify that even without HAS_LOGICAL_RING_PREEMPTION, we can @@ -1539,13 +1539,17 @@ static int live_busywait_preempt(void *arg) */ ctx_hi = kernel_context(gt->i915, NULL); - if (!ctx_hi) - return -ENOMEM; + if (IS_ERR(ctx_hi)) + return PTR_ERR(ctx_hi); + ctx_hi->sched.priority = I915_CONTEXT_MAX_USER_PRIORITY; ctx_lo = kernel_context(gt->i915, NULL); - if (!ctx_lo) + if (IS_ERR(ctx_lo)) { + err = PTR_ERR(ctx_lo); goto err_ctx_hi; + } + ctx_lo->sched.priority = I915_CONTEXT_MIN_USER_PRIORITY; obj = i915_gem_object_create_internal(gt->i915, PAGE_SIZE); -- 2.40.1

1 year

3
3
0 0

[PATCH 0/3] wifi: rtw88/89: add PS calculation to repair PS mode

by Ping-Ke Shih

The commit 28977e790b5d ("wifi: mac80211: skip powersave recalc if driver SUPPORTS_DYNAMIC_PS") introduced by kernel 5.20 will skip to recalculate IEEE80211_CONF_PS of hw->conf.flags if driver sets SUPPORTS_DYNAMIC_PS. Since this problem was happened since 5.20, patches 1/3 and 2/3 should be applied to kernel 6.1+. Patch 3/3 is to remove redundant/unnecessary check, so this can be seen as an independent patch that can go either wireless or wireless-next tree. Note, I can't combine this into patch 2/3, because this redundant check is introduced by upcoming kernel 6.4, but patch 2/3 would go kernel 6.1+. Ping-Ke Shih (3): wifi: rtw88: correct PS calculation for SUPPORTS_DYNAMIC_PS wifi: rtw89: correct PS calculation for SUPPORTS_DYNAMIC_PS wifi: rtw89: remove redundant check of entering LPS drivers/net/wireless/realtek/rtw88/mac80211.c | 14 +++--- drivers/net/wireless/realtek/rtw88/main.c | 4 +- drivers/net/wireless/realtek/rtw88/ps.c | 43 +++++++++++++++++++ drivers/net/wireless/realtek/rtw88/ps.h | 2 + drivers/net/wireless/realtek/rtw89/core.c | 3 -- drivers/net/wireless/realtek/rtw89/mac80211.c | 15 +++---- drivers/net/wireless/realtek/rtw89/ps.c | 26 +++++++++++ drivers/net/wireless/realtek/rtw89/ps.h | 1 + 8 files changed, 85 insertions(+), 23 deletions(-) -- 2.25.1

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Linux-stable-mirror May 2023