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[PATCH] kunit: platform: Resolve 'struct completion' warning

by Brian Norris

If the <kunit/platform_device.h> header is included in a test without certain other headers, it produces compiler warnings like: In file included from [...] ../include/kunit/platform_device.h:15:57: warning: ‘struct completion’ declared inside parameter list will not be visible outside of this definition or declaration 15 | struct completion *x); | ^~~~~~~~~~ Add a 'struct completion' forward declaration to resolve this. Signed-off-by: Brian Norris <briannorris(a)chromium.org> --- I'm not bothering with a Fixes tag, since this only shows up with new tests I'm writing. include/kunit/platform_device.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/kunit/platform_device.h b/include/kunit/platform_device.h index 0fc0999d2420..f8236a8536f7 100644 --- a/include/kunit/platform_device.h +++ b/include/kunit/platform_device.h @@ -2,6 +2,7 @@ #ifndef _KUNIT_PLATFORM_DRIVER_H #define _KUNIT_PLATFORM_DRIVER_H +struct completion; struct kunit; struct platform_device; struct platform_driver; -- 2.47.1.613.gc27f4b7a9f-goog

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[PATCH net] selftests: openvswitch: fix tcpdump execution

by Adrian Moreno

Fix the way tcpdump is executed by: - Using the right variable for the namespace. Currently the use of the empty "ns" makes the command fail. - Waiting until it starts to capture to ensure the interesting traffic is caught on slow systems. - Using line-buffered output to ensure logs are available when the test is paused with "-p". Otherwise the last chunk of data might only be written when tcpdump is killed. Fixes: 74cc26f416b9 ("selftests: openvswitch: add interface support") Signed-off-by: Adrian Moreno <amorenoz(a)redhat.com> --- tools/testing/selftests/net/openvswitch/openvswitch.sh | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh index cc0bfae2bafa..960e1ab4dd04 100755 --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh @@ -171,8 +171,10 @@ ovs_add_netns_and_veths () { ovs_add_if "$1" "$2" "$4" -u || return 1 fi - [ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$ns" \ - tcpdump -i any -s 65535 + if [ $TRACING -eq 1 ]; then + ovs_netns_spawn_daemon "$1" "$3" tcpdump -l -i any -s 6553 + ovs_wait grep -q "listening on any" ${ovs_dir}/stderr + fi return 0 } -- 2.47.1

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[PATCH V2] selftests: lsm: Refactor `flags_overset_lsm_set_self_attr` test

by Amit Vadhavana

Remove the temporary context variable `tctx` to simplify the code. use the original context `ctx` directly in calls to `lsm_get_self_attr`, eliminating redundancy without any functional changes. Reviewed-by: Casey Schaufler <casey(a)schaufler-ca.com> Reviewed-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Amit Vadhavana <av2082000(a)gmail.com> --- V1:- https://lore.kernel.org/all/20241112182810.24761-1-av2082000@gmail.com/ V1 -> V2 : write complete sentences instead of bullet points in the change log. --- tools/testing/selftests/lsm/lsm_set_self_attr_test.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/lsm/lsm_set_self_attr_test.c b/tools/testing/selftests/lsm/lsm_set_self_attr_test.c index 66dec47e3ca3..732e89fe99c0 100644 --- a/tools/testing/selftests/lsm/lsm_set_self_attr_test.c +++ b/tools/testing/selftests/lsm/lsm_set_self_attr_test.c @@ -56,16 +56,15 @@ TEST(flags_zero_lsm_set_self_attr) TEST(flags_overset_lsm_set_self_attr) { const long page_size = sysconf(_SC_PAGESIZE); - char *ctx = calloc(page_size, 1); + struct lsm_ctx *ctx = calloc(page_size, 1); __u32 size = page_size; - struct lsm_ctx *tctx = (struct lsm_ctx *)ctx; ASSERT_NE(NULL, ctx); if (attr_lsm_count()) { - ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, tctx, &size, + ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size, 0)); } - ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT | LSM_ATTR_PREV, tctx, + ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT | LSM_ATTR_PREV, ctx, size, 0)); free(ctx); -- 2.25.1

1 month

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arch/x86/include/asm/current.h:49:9: error: call to undeclared function '__typeof_unqual__'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

by Naresh Kamboju

The Rust gcc builds failed due to following build warnings / errors on the x86_64 and arm64 architectures with selftests/rust/config on the Linux next-20241216...next-20241218. First seen on the next-20241216 tag. Good: next-20241213 Bad: next-20241216 Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> Anders bisected this regressions and found, # first bad commit: [20b3c3eccd9361c9976af640be280526bef72248] percpu: use TYPEOF_UNQUAL() in variable declarations Build log: ------- arch/x86/include/asm/current.h:49:9: error: call to undeclared function '__typeof_unqual__'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] arch/x86/include/asm/current.h:49:9: error: expected ';' after expression arch/x86/include/asm/current.h:49:9: error: use of undeclared identifier 'pscr_ret__' Links: ------- - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241218/te… - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241218/te… - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241217/te… metadata: ---- git describe: next-20241216..next-20241218 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2qNMCRNosQCRWxj5dIUE… build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2qNMCRNosQCRWxj5dIUE… toolchain: 'gcc', 'version': '14' arch: arm64, x86 build name: rustgcc-lkftconfig-kselftest -- Linaro LKFT https://lkft.linaro.org

1 month

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Re: [PATCH v2 1/6] kvm: s390: Reject setting flic pfault attributes on ucontrol VMs

by Hariharan Mari

On 2024-12-16 10:21, Christoph Schlameuss wrote: > Prevent null pointer dereference when processing the > KVM_DEV_FLIC_APF_ENABLE and KVM_DEV_FLIC_APF_DISABLE_WAIT ioctls in the > interrupt controller. > > Fixes: 3c038e6be0e2 ("KVM: async_pf: Async page fault support on s390") > Reported-by: Claudio Imbrenda <imbrenda(a)linux.ibm.com> > Signed-off-by: Christoph Schlameuss <schlameuss(a)linux.ibm.com> Tested-by: Hariharan Mari <hari55(a)linux.ibm.com> > --- > Documentation/virt/kvm/devices/s390_flic.rst | 4 ++++ > arch/s390/kvm/interrupt.c | 4 ++++ > 2 files changed, 8 insertions(+) > > diff --git a/Documentation/virt/kvm/devices/s390_flic.rst > b/Documentation/virt/kvm/devices/s390_flic.rst > index ea96559ba501..b784f8016748 100644 > --- a/Documentation/virt/kvm/devices/s390_flic.rst > +++ b/Documentation/virt/kvm/devices/s390_flic.rst > @@ -58,11 +58,15 @@ Groups: > Enables async page faults for the guest. So in case of a major > page fault > the host is allowed to handle this async and continues the guest. > > + -EINVAL is returned when called on the FLIC of a ucontrol VM. > + > KVM_DEV_FLIC_APF_DISABLE_WAIT > Disables async page faults for the guest and waits until already > pending > async page faults are done. This is necessary to trigger a > completion interrupt > for every init interrupt before migrating the interrupt list. > > + -EINVAL is returned when called on the FLIC of a ucontrol VM. > + > KVM_DEV_FLIC_ADAPTER_REGISTER > Register an I/O adapter interrupt source. Takes a > kvm_s390_io_adapter > describing the adapter to register:: > diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c > index ea8dce299954..22d73c13e555 100644 > --- a/arch/s390/kvm/interrupt.c > +++ b/arch/s390/kvm/interrupt.c > @@ -2678,9 +2678,13 @@ static int flic_set_attr(struct kvm_device > *dev, struct kvm_device_attr *attr) > kvm_s390_clear_float_irqs(dev->kvm); > break; > case KVM_DEV_FLIC_APF_ENABLE: > + if (kvm_is_ucontrol(dev->kvm)) > + return -EINVAL; > dev->kvm->arch.gmap->pfault_enabled = 1; > break; > case KVM_DEV_FLIC_APF_DISABLE_WAIT: > + if (kvm_is_ucontrol(dev->kvm)) > + return -EINVAL; > dev->kvm->arch.gmap->pfault_enabled = 0; > /* > * Make sure no async faults are in transition when

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[PATCH net-next v7 0/4] Add support for SO_PRIORITY cmsg

by Anna Emese Nyiri

Introduce a new helper function, `sk_set_prio_allowed`, to centralize the logic for validating priority settings. Add support for the `SO_PRIORITY` control message, enabling user-space applications to set socket priority via control messages (cmsg). Patch Overview: Patch 1/4: Introduce 'sk_set_prio_allowed' helper function. Patch 2/4: Add support for setting SO_PRIORITY via control messages Patch 3/4: Add test for SO_PRIORITY setting via control messages Patch 4/4: Add new socket option, SO_RCVPRIORITY v7: - Carry Eric's and Willem's "Reviewed-by" tags from v3 to patch 1/4 since that is resubmitted without changes. - Carry Willem's "Reviewed-by" tag from v4 in patch 2/4, as it is resubmitted without changes. - Carry Willem's "Reviewed-by" tag from v5 in patch 4/4, as it is resubmitted without changes. - Carry Willem's "Reviewed-by" tag from v6 since it is resubmitted with minor cosmetic changes in patch 3/4. - Carry Willem's "Acked-by" tag from v5 on FILTER_COUNTER (patch 3/4). - Carry Ido's "Reviewed-by" and "Tested-by" tags from v6 since it is resubmitted with minor cosmetic changes in patch 3/4. - Align the code to the open parenthesis in cmsg_sender.c (patch 3/4). - Remove unnecessary blank line in cmsg_so_priority.sh (patch 3/4). - Remove unused delay variable from cmsg_so_priority.sh (patch 3/4). - Rebased on net-next. v6: https://lore.kernel.org/netdev/20241210191309.8681-1-annaemesenyiri@gmail.c… - Carry Eric's and Willem's "Reviewed-by" tags from v3 to patch 1/4 since that is resubmitted without changes. - Carry Willem's "Reviewed-by" tag from v4 in patch 2/4, as it is resubmitted without changes. - Carry Willem's "Reviewed-by" tag from v5 in patch 4/4, as it is resubmitted without changes. - Use KSFT_SKIP in jq installation test and add 'nodad' flag for IPv6 address in cmsg_so_priority.sh (patch 3/4). - Rebased on net-next. v5: https://lore.kernel.org/netdev/20241205133112.17903-1-annaemesenyiri@gmail.… - Carry Eric's and Willem's "Reviewed-by" tags from v3 to patch 1/4 since that is resubmitted without changes. - Carry Willem's "Reviewed-by" tag from v4 in patch 2/4, as it is resubmitted without changes. - Eliminate variable duplication, fix indentation, simplify cleanup, verify dependencies, separate setsockopt and control message priority testing, and modify namespace setup in patch 3/4 cmsg_so_priority.sh. - Add cmsg_so_priority.sh to tools/testing/selftests/net/Makefile. - Remove the unused variable, rename priority_cmsg to priority, and document the -P option in cmsg_sender.c in patch 3/4. - New in v5: add new socket option, SO_RCVPRIORITY in patch 4/4. - Rebased on net-next. v4: https://lore.kernel.org/netdev/20241118145147.56236-1-annaemesenyiri@gmail.… - Carry Eric's and Willem's "Reviewed-by" tags from v3 to patch 1/3 since that is resubmitted without changes. - Updated description in patch 2/3. - Missing ipc6.sockc.priority field added in ping_v6_sendmsg() in patch 2/3. - Update cmsg_so_priority.sh to test SO_PRIORITY sockopt and cmsg setting with VLAN priority tagging in patch 3/3. (Ido Schimmel) - Rebased on net-next. v3: https://lore.kernel.org/netdev/20241107132231.9271-1-annaemesenyiri@gmail.c… - Updated cover letter text. - Removed priority field from ipcm_cookie. - Removed cork->tos value check from ip_setup_cork, so cork->priority will now take its value from ipc->sockc.priority. - Replaced ipc->priority with ipc->sockc.priority in ip_cmsg_send(). - Modified the error handling for the SO_PRIORITY case in __sock_cmsg_send(). - Added missing initialization for ipc6.sockc.priority. - Introduced cmsg_so_priority.sh test script. - Modified cmsg_sender.c to set priority via control message (cmsg). - Rebased on net-next. v2: https://lore.kernel.org/netdev/20241102125136.5030-1-annaemesenyiri@gmail.c… - Introduced sk_set_prio_allowed helper to check capability for setting priority. - Removed new fields and changed sockcm_cookie::priority from char to u32 to align with sk_buff::priority. - Moved the cork->tos value check for priority setting from __ip_make_skb() to ip_setup_cork(). - Rebased on net-next. v1: https://lore.kernel.org/all/20241029144142.31382-1-annaemesenyiri@gmail.com/ Anna Emese Nyiri (4): Introduce sk_set_prio_allowed helper function support SO_PRIORITY cmsg test SO_PRIORITY ancillary data with cmsg_sender introduce SO_RCVPRIORITY socket option arch/alpha/include/uapi/asm/socket.h | 2 + arch/mips/include/uapi/asm/socket.h | 2 + arch/parisc/include/uapi/asm/socket.h | 2 + arch/sparc/include/uapi/asm/socket.h | 2 + include/net/inet_sock.h | 2 +- include/net/ip.h | 2 +- include/net/sock.h | 8 +- include/uapi/asm-generic/socket.h | 2 + net/can/raw.c | 2 +- net/core/sock.c | 26 ++- net/ipv4/ip_output.c | 4 +- net/ipv4/ip_sockglue.c | 2 +- net/ipv4/raw.c | 2 +- net/ipv6/ip6_output.c | 3 +- net/ipv6/ping.c | 1 + net/ipv6/raw.c | 3 +- net/ipv6/udp.c | 1 + net/packet/af_packet.c | 2 +- net/socket.c | 11 ++ tools/include/uapi/asm-generic/socket.h | 2 + tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/cmsg_sender.c | 11 +- .../testing/selftests/net/cmsg_so_priority.sh | 151 ++++++++++++++++++ 23 files changed, 228 insertions(+), 16 deletions(-) create mode 100755 tools/testing/selftests/net/cmsg_so_priority.sh -- 2.43.0

1 month, 1 week

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[PATCH v1] kbuild: Allow building of samples with UML

by Mickaël Salaün

It's useful to build samples/* with UML and the only blocker is the artificial incompatibility with CONFIG_HEADERS_INSTALL. Allow the headers_install target with ARCH=um, which then allow building samples (and tests using them) with UML too: printf 'CONFIG_SAMPLES=y\nCONFIG_HEADERS_INSTALL=y\nCONFIG_SAMPLE_LANDLOCK=y\n' >.config make ARCH=um olddefconfig headers_install make ARCH=um samples/landlock/ Cc: Anton Ivanov <anton.ivanov(a)cambridgegreys.com> Cc: Johannes Berg <johannes(a)sipsolutions.net> Cc: Masahiro Yamada <masahiroy(a)kernel.org> Cc: Nathan Chancellor <nathan(a)kernel.org> Cc: Nicolas Schier <nicolas(a)fjasle.eu> Cc: Richard Weinberger <richard(a)nod.at> Fixes: 1b620d539ccc ("kbuild: disable header exports for UML in a straightforward way") Signed-off-by: Mickaël Salaün <mic(a)digikod.net> --- Makefile | 1 - lib/Kconfig.debug | 1 - 2 files changed, 2 deletions(-) diff --git a/Makefile b/Makefile index e5b8a8832c0c..6e2cce16a2a3 100644 --- a/Makefile +++ b/Makefile @@ -1355,7 +1355,6 @@ hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj PHONY += headers headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts - $(if $(filter um, $(SRCARCH)), $(error Headers not exportable for UML)) $(Q)$(MAKE) $(hdr-inst)=include/uapi $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index f3d723705879..fac1208f48e4 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -473,7 +473,6 @@ config READABLE_ASM config HEADERS_INSTALL bool "Install uapi headers to usr/include" - depends on !UML help This option will install uapi headers (headers exported to user-space) into the usr/include directory for use during the kernel build. -- 2.47.1

1 month, 1 week

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[PATCH bpf-next v1] selftests/bpf: avoid generating untracked files when running bpf selftests

by Jiayuan Chen

Currently, when we run the BPF selftests with the following command: 'make -C tools/testing/selftests TARGETS=bpf SKIP_TARGETS=""' The command generates untracked files and directories: ''' Untracked files: (use "git add <file>..." to include in what will be committed) tools/testing/selftests/bpfFEATURE-DUMP.selftests tools/testing/selftests/bpffeature/ ''' The core reason is our Makefile(tools/testing/selftests/bpf/Makefile) was written like this: ''' OUTPUT := $(OUTPUT)/ $(eval include ../../../build/Makefile.feature) OUTPUT := $(patsubst %/,%,$(OUTPUT)) ''' This way of assigning values to OUTPUT will never be effective for the variable OUTPUT provided via the command argument and sub makefile called like this(tools/testing/selftests/Makefile): ''' all: ... $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET ''' As stated in the GNU make documentation: ''' An argument that contains '=' specifies the value of a variable: 'v=x' sets the value of the variable v to x. If you specify a value in this way, all ordinary assignments of the same variable in the makefile are ignored; we say they have been overridden by the command line argument. ''' According to GNU make, we use override Directive to fix this issue: ''' If you want to set the variable in the makefile even though it was set with a command argument, you can use an override directive, which is a line that looks like this: override variable := value Link: https://www.gnu.org/software/make/manual/make.html#Override-Directive Fixes: dc3a8804d790 ("selftests/bpf: Adapt OUTPUT appending logic to lower versions of Make") Signed-off-by: Jiayuan Chen <mrpre(a)163.com> --- tools/testing/selftests/bpf/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 9e870e519c30..eb4d21651aa7 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -202,9 +202,9 @@ ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1) $(let OUTPUT,$(OUTPUT)/,\ $(eval include ../../../build/Makefile.feature)) else -OUTPUT := $(OUTPUT)/ +override OUTPUT := $(OUTPUT)/ $(eval include ../../../build/Makefile.feature) -OUTPUT := $(patsubst %/,%,$(OUTPUT)) +override OUTPUT := $(patsubst %/,%,$(OUTPUT)) endif endif base-commit: a7c205120d339b6ad2557fe3f33fdf20394f1a0f -- 2.43.5

1 month, 1 week

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[PATCH] KVM: arm64: Fix set_id_regs selftest for ASIDBITS becoming unwritable

by Mark Brown

In commit 03c7527e97f7 ("KVM: arm64: Do not allow ID_AA64MMFR0_EL1.ASIDbits to be overridden") we made that bitfield in the ID registers unwritable however the change neglected to make the corresponding update to set_id_regs resulting in it failing: # ok 56 ID_AA64MMFR0_EL1_BIGEND # ==== Test Assertion Failure ==== # aarch64/set_id_regs.c:434: masks[idx] & ftr_bits[j].mask == ftr_bits[j].mask # pid=5566 tid=5566 errno=22 - Invalid argument # 1 0x00000000004034a7: test_vm_ftr_id_regs at set_id_regs.c:434 # 2 0x0000000000401b53: main at set_id_regs.c:684 # 3 0x0000ffff8e6b7543: ?? ??:0 # 4 0x0000ffff8e6b7617: ?? ??:0 # 5 0x0000000000401e6f: _start at ??:? # 0 != 0xf0 (masks[idx] & ftr_bits[j].mask != ftr_bits[j].mask) not ok 8 selftests: kvm: set_id_regs # exit=254 Remove ID_AA64MMFR1_EL1.ASIDBITS from the set of bitfields we test for writeability. Fixes: 03c7527e97f7 ("KVM: arm64: Do not allow ID_AA64MMFR0_EL1.ASIDbits to be overridden") Signed-off-by: Mark Brown <broonie(a)kernel.org> --- tools/testing/selftests/kvm/aarch64/set_id_regs.c | 1 - 1 file changed, 1 deletion(-) diff --git a/tools/testing/selftests/kvm/aarch64/set_id_regs.c b/tools/testing/selftests/kvm/aarch64/set_id_regs.c index a79b7f18452d2ec336ae623b8aa5c9cf329b6b4e..3a97c160b5fec990aaf8dfaf100a907b913f057c 100644 --- a/tools/testing/selftests/kvm/aarch64/set_id_regs.c +++ b/tools/testing/selftests/kvm/aarch64/set_id_regs.c @@ -152,7 +152,6 @@ static const struct reg_ftr_bits ftr_id_aa64mmfr0_el1[] = { REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, BIGENDEL0, 0), REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, SNSMEM, 0), REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, BIGEND, 0), - REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, ASIDBITS, 0), REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, PARANGE, 0), REG_FTR_END, }; --- base-commit: 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 change-id: 20241216-kvm-arm64-fix-set-id-asidbits-9bede25b7ad3 Best regards, -- Mark Brown <broonie(a)kernel.org>

1 month, 1 week

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[PATCH bpf-next v3 0/2] bpf, verifier: Improve precision of BPF_MUL

by Matan Shachnai

Hi All, This patch-set aims to improve precision of BPF_MUL and add testcases to illustrate precision gains using signed and unsigned bounds. Thanks for taking the time to review and specifically for Eduard's feedback! Best, Matan Changes from v1: - Fixed typo made in patch Changes from v2: - Added signed multiplication to BPF_MUL - Added test cases to exercise BPF_MUL - Reordered patches in the series. Matan Shachnai (2): bpf, verifier: Improve precision of BPF_MUL selftests/bpf: Add testcases for BPF_MUL kernel/bpf/verifier.c | 72 +++++----- .../selftests/bpf/progs/verifier_bounds.c | 134 ++++++++++++++++++ 2 files changed, 166 insertions(+), 40 deletions(-) -- 2.25.1

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