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[PATCH v8 00/12] syfs: generic deadlock fix with module removal

by Luis Chamberlain

This is a follow up to my v7 series of fixes for the zram driver [0] which ended up uncovering a generic deadlock issue with sysfs and module removal. I've reported this issue and proposed a few patches first since March 2021 [1]. At the end of this email you will find an itemized list of changes since that v1 series, you can also find these changes on my branch 20210927-sysfs-generic-deadlock-fix [4] which is based on linux-next tag next-20210927. Just a heads up, I'm goin on vacation in two days, won't be back until Monday October 11th. On this v8 I incorporate feedback from the v7 series, namely: - Tejun requested I move the struct module to the last attribute when extending functions - As per discussion with Tejun, trimmed and clarified the commit log and documentation on the generic fix on patch 7 - As requested by Bart Van Assche, I simplied the setting of the struct test_config *config into one line instead of two on many places on patch 3 which adds the new sysfs selftest - Dan Williams had some questions about patch 7, and so clarified these questions using a more elaborate example on the commit log to show where the lock call was happening. - Trimmed the Cc list considerably as it was way too long before - Rebased onto linux-next tag next-20210927 Below a list of changes of this patch set since its inception: On v1: - Open coded the sysfs deadlock race to only be localized by the zram driver Changes on v2: - used bdgrab() as well for another race which was speculated by Minchan - improved documentation of fixes Changes on v3: - used a localized zram macros for the sysfs attributes instead of open coding on each routine - replaced bdget() stuff for a generic get_device() and bus_get() on dev_attr_show() / dev_attr_store() for the issue speculated by Michan Changes on v4: - Cosmetic fixes on the zram fixes as requested by Greg - Split out the driver core fix as requested by Greg for the issue speculated by Michan. This fix ended up getting up to its 4th patch iteration [2] and eventually hit linux-next. We got a 0day 0day suspend stres fail for this patch [3] Changes on v5: - I ended up writing a test_sysfs driver and with it I ended up proving that the issue speculated by Michen was not possible and so I asked Greg to drop the patch from his queue titled "sysfs: fix kobject refcount to address races with kobject removal" - checkpatch fixes for the zram changes Changes on v6: - I submitted my test_sysfs driver for inclusion upstream which easily abstracted the deadlock issue in a driver generically [4] - I rebased the zram fixes and added also a new patch for zram to use ATTRIBUTE_GROUPS As per Minchen I sent the patches to be merged through Andrew Morton. - Greg ended up NACK'ing the patchset because he was not sure the fix was correct still Changes on v7: - Formalizes the original proposed generic sysfs fix intead of using macro helpers to work around the issue - I decided it is best to merge all the effort together into one patch set because communication was being lost when I split the patches up. This was not helping in any way to either fix the zram issues or come to consensus on a generic solution. The patches are also merged now because they are all related now. - Running checkpatch exposed that S_IRWXUGO and S_IRWXU|S_IRUGO|S_IXUGO should be replaced, so I did that in this series in two new patches - Adds a try_module_get() documentation extension with tribal knowledge and new information I don't think some folks still believe in. The new test_sysfs selftest however proves this information to be correct, the same selftest can be used to try to prove that documentation incorrect - Because the fix is now generic zram's deadlock can easily be fixed now by just making it use ATTRIBUTE_GROUPS(). [0] https://lkml.kernel.org/r/YUjLAbnEB5qPfnL8@slm.duckdns.org [1] https://lkml.kernel.org/r/20210306022035.11266-1-mcgrof@kernel.org [2] https://lkml.kernel.org/r/20210623215007.862787-1-mcgrof@kernel.org [3] https://lkml.kernel.org/r/20210701022737.GC21279@xsang-OptiPlex-9020 [4] https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git/log/?… Luis Chamberlain (12): LICENSES: Add the copyleft-next-0.3.1 license testing: use the copyleft-next-0.3.1 SPDX tag selftests: add tests_sysfs module kernfs: add initial failure injection support test_sysfs: add support to use kernfs failure injection kernel/module: add documentation for try_module_get() fs/kernfs/symlink.c: replace S_IRWXUGO with 0777 on kernfs_create_link() fs/sysfs/dir.c: replace S_IRWXU|S_IRUGO|S_IXUGO with 0755 sysfs_create_dir_ns() sysfs: fix deadlock race with module removal test_sysfs: enable deadlock tests by default zram: fix crashes with cpu hotplug multistate zram: use ATTRIBUTE_GROUPS to fix sysfs deadlock module removal .../fault-injection/fault-injection.rst | 22 + LICENSES/dual/copyleft-next-0.3.1 | 237 +++ MAINTAINERS | 9 +- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 4 +- drivers/block/zram/zram_drv.c | 74 +- fs/kernfs/Makefile | 1 + fs/kernfs/dir.c | 44 +- fs/kernfs/failure-injection.c | 91 ++ fs/kernfs/file.c | 19 +- fs/kernfs/kernfs-internal.h | 75 +- fs/kernfs/symlink.c | 4 +- fs/sysfs/dir.c | 5 +- fs/sysfs/file.c | 6 +- fs/sysfs/group.c | 3 +- include/linux/kernfs.h | 19 +- include/linux/module.h | 34 +- include/linux/sysfs.h | 52 +- kernel/cgroup/cgroup.c | 2 +- lib/Kconfig.debug | 25 + lib/Makefile | 1 + lib/test_kmod.c | 12 +- lib/test_sysctl.c | 12 +- lib/test_sysfs.c | 952 ++++++++++++ tools/testing/selftests/kmod/kmod.sh | 13 +- tools/testing/selftests/sysctl/sysctl.sh | 12 +- tools/testing/selftests/sysfs/Makefile | 12 + tools/testing/selftests/sysfs/config | 5 + tools/testing/selftests/sysfs/sysfs.sh | 1383 +++++++++++++++++ 28 files changed, 3026 insertions(+), 102 deletions(-) create mode 100644 LICENSES/dual/copyleft-next-0.3.1 create mode 100644 fs/kernfs/failure-injection.c create mode 100644 lib/test_sysfs.c create mode 100644 tools/testing/selftests/sysfs/Makefile create mode 100644 tools/testing/selftests/sysfs/config create mode 100755 tools/testing/selftests/sysfs/sysfs.sh -- 2.30.2

3 years, 3 months

7
91
0 0

[PATCHv3 net 0/5] kselftests/net: add missed tests to Makefile

by Hangbin Liu

When generating the selftest to another folder, some tests are missing as they are not added in Makefile. e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests These pathset add them separately to make the Fixes tags less. It would also make the stable tree or downstream backport easier. If you think there is no need to add the Fixes tag for this minor issue. I can repost a new patch and merge all the fixes together. Thanks v3: no update, just rebase to latest net tree. v2: move toeplitz.sh/toeplitz_client.sh under TEST_PROGS_EXTENDED. Hangbin Liu (5): kselftests/net: add missed icmp.sh test to Makefile kselftests/net: add missed setup_loopback.sh/setup_veth.sh to Makefile kselftests/net: add missed SRv6 tests kselftests/net: add missed vrf_strict_mode_test.sh test to Makefile kselftests/net: add missed toeplitz.sh/toeplitz_client.sh to Makefile tools/testing/selftests/net/Makefile | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) -- 2.31.1

3 years, 3 months

2
6
0 0

[PATCH] selftests: kselftest.h: mark functions with 'noreturn'

by Anders Roxell

When building kselftests/capabilities the following warning shows up: clang -O2 -g -std=gnu99 -Wall test_execve.c -lcap-ng -lrt -ldl -o test_execve test_execve.c:121:13: warning: variable 'have_outer_privilege' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] } else if (unshare(CLONE_NEWUSER | CLONE_NEWNS) == 0) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ test_execve.c:136:9: note: uninitialized use occurs here return have_outer_privilege; ^~~~~~~~~~~~~~~~~~~~ test_execve.c:121:9: note: remove the 'if' if its condition is always true } else if (unshare(CLONE_NEWUSER | CLONE_NEWNS) == 0) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ test_execve.c:94:27: note: initialize the variable 'have_outer_privilege' to silence this warning bool have_outer_privilege; ^ = false Rework so all the ksft_exit_*() functions have attribue '__attribute__((noreturn))' so the compiler knows that there wont be any return from the function. That said, without '__attribute__((noreturn))' the compiler warns about the above issue since it thinks that it will get back from the ksft_exit_skip() function, which it wont. Cleaning up the callers that rely on ksft_exit_*() return code, since the functions ksft_exit_*() have never returned anything. Signed-off-by: Anders Roxell <anders.roxell(a)linaro.org> --- tools/testing/selftests/clone3/clone3.c | 2 +- .../testing/selftests/clone3/clone3_clear_sighand.c | 2 +- tools/testing/selftests/clone3/clone3_set_tid.c | 2 +- tools/testing/selftests/ipc/msgque.c | 10 +++++----- tools/testing/selftests/kcmp/kcmp_test.c | 2 +- tools/testing/selftests/kselftest.h | 12 ++++++------ .../membarrier/membarrier_test_multi_thread.c | 2 +- .../membarrier/membarrier_test_single_thread.c | 2 +- tools/testing/selftests/openat2/openat2_test.c | 5 +---- tools/testing/selftests/pidfd/pidfd_fdinfo_test.c | 2 +- tools/testing/selftests/pidfd/pidfd_open_test.c | 2 +- tools/testing/selftests/pidfd/pidfd_poll_test.c | 2 +- tools/testing/selftests/pidfd/pidfd_test.c | 2 +- tools/testing/selftests/resctrl/resctrl_tests.c | 6 +++--- tools/testing/selftests/sync/sync_test.c | 2 +- tools/testing/selftests/timers/adjtick.c | 5 +---- tools/testing/selftests/timers/alarmtimer-suspend.c | 4 +--- tools/testing/selftests/timers/change_skew.c | 7 +------ tools/testing/selftests/timers/clocksource-switch.c | 4 +--- tools/testing/selftests/timers/freq-step.c | 5 +---- tools/testing/selftests/timers/inconsistency-check.c | 4 ++-- tools/testing/selftests/timers/leap-a-day.c | 10 +++++----- tools/testing/selftests/timers/leapcrash.c | 4 ++-- tools/testing/selftests/timers/mqueue-lat.c | 7 +------ tools/testing/selftests/timers/nanosleep.c | 4 ++-- tools/testing/selftests/timers/nsleep-lat.c | 4 ++-- tools/testing/selftests/timers/posix_timers.c | 12 ++++++------ tools/testing/selftests/timers/raw_skew.c | 6 +++--- tools/testing/selftests/timers/set-2038.c | 4 ++-- tools/testing/selftests/timers/set-tai.c | 4 ++-- tools/testing/selftests/timers/set-timer-lat.c | 4 ++-- tools/testing/selftests/timers/set-tz.c | 4 ++-- tools/testing/selftests/timers/skew_consistency.c | 4 ++-- tools/testing/selftests/timers/threadtest.c | 2 +- tools/testing/selftests/timers/valid-adjtimex.c | 6 +++--- tools/testing/selftests/vm/madv_populate.c | 2 +- 36 files changed, 69 insertions(+), 92 deletions(-) diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c index 42be3b925830..1138a8159782 100644 --- a/tools/testing/selftests/clone3/clone3.c +++ b/tools/testing/selftests/clone3/clone3.c @@ -191,5 +191,5 @@ int main(int argc, char *argv[]) test_clone3(CLONE_NEWPID, getpagesize() + 8, -E2BIG, CLONE3_ARGS_NO_TEST); - return !ksft_get_fail_cnt() ? ksft_exit_pass() : ksft_exit_fail(); + ksft_exit(!ksft_get_fail_cnt()); } diff --git a/tools/testing/selftests/clone3/clone3_clear_sighand.c b/tools/testing/selftests/clone3/clone3_clear_sighand.c index 47a8c0fc3676..dcd9448eaeec 100644 --- a/tools/testing/selftests/clone3/clone3_clear_sighand.c +++ b/tools/testing/selftests/clone3/clone3_clear_sighand.c @@ -124,5 +124,5 @@ int main(int argc, char **argv) test_clone3_clear_sighand(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/clone3/clone3_set_tid.c b/tools/testing/selftests/clone3/clone3_set_tid.c index 0229e9ebb995..c6f6625acba9 100644 --- a/tools/testing/selftests/clone3/clone3_set_tid.c +++ b/tools/testing/selftests/clone3/clone3_set_tid.c @@ -393,5 +393,5 @@ int main(int argc, char *argv[]) out: ret = 0; - return !ret ? ksft_exit_pass() : ksft_exit_fail(); + ksft_exit(!ret); } diff --git a/tools/testing/selftests/ipc/msgque.c b/tools/testing/selftests/ipc/msgque.c index 656c43c24044..21dd6af76b21 100644 --- a/tools/testing/selftests/ipc/msgque.c +++ b/tools/testing/selftests/ipc/msgque.c @@ -198,13 +198,13 @@ int main(int argc, char **argv) struct msgque_data msgque; if (getuid() != 0) - return ksft_exit_skip( + ksft_exit_skip( "Please run the test as root - Exiting.\n"); msgque.key = ftok(argv[0], 822155650); if (msgque.key == -1) { printf("Can't make key: %d\n", -errno); - return ksft_exit_fail(); + ksft_exit_fail(); } msgque.msq_id = msgget(msgque.key, IPC_CREAT | IPC_EXCL | 0666); @@ -243,13 +243,13 @@ int main(int argc, char **argv) printf("Failed to test queue: %d\n", err); goto err_out; } - return ksft_exit_pass(); + ksft_exit_pass(); err_destroy: if (msgctl(msgque.msq_id, IPC_RMID, NULL)) { printf("Failed to destroy queue: %d\n", -errno); - return ksft_exit_fail(); + ksft_exit_fail(); } err_out: - return ksft_exit_fail(); + ksft_exit_fail(); } diff --git a/tools/testing/selftests/kcmp/kcmp_test.c b/tools/testing/selftests/kcmp/kcmp_test.c index 6ea7b9f37a41..4e0776c044d1 100644 --- a/tools/testing/selftests/kcmp/kcmp_test.c +++ b/tools/testing/selftests/kcmp/kcmp_test.c @@ -162,5 +162,5 @@ int main(int argc, char **argv) waitpid(pid2, &status, P_ALL); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 8d50483fe204..e47f634bf5c0 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -207,13 +207,13 @@ static inline void ksft_test_result_error(const char *msg, ...) va_end(args); } -static inline int ksft_exit_pass(void) +static inline void __attribute__((noreturn)) ksft_exit_pass(void) { ksft_print_cnts(); exit(KSFT_PASS); } -static inline int ksft_exit_fail(void) +static inline void __attribute__((noreturn)) ksft_exit_fail(void) { ksft_print_cnts(); exit(KSFT_FAIL); @@ -231,7 +231,7 @@ static inline int ksft_exit_fail(void) ksft_exit_fail(); \ } while (0) -static inline int ksft_exit_fail_msg(const char *msg, ...) +static inline void __attribute__((noreturn)) ksft_exit_fail_msg(const char *msg, ...) { int saved_errno = errno; va_list args; @@ -246,19 +246,19 @@ static inline int ksft_exit_fail_msg(const char *msg, ...) exit(KSFT_FAIL); } -static inline int ksft_exit_xfail(void) +static inline void __attribute__((noreturn)) ksft_exit_xfail(void) { ksft_print_cnts(); exit(KSFT_XFAIL); } -static inline int ksft_exit_xpass(void) +static inline void __attribute__((noreturn)) ksft_exit_xpass(void) { ksft_print_cnts(); exit(KSFT_XPASS); } -static inline int ksft_exit_skip(const char *msg, ...) +static inline void __attribute__((noreturn)) ksft_exit_skip(const char *msg, ...) { int saved_errno = errno; va_list args; diff --git a/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c b/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c index ac5613e5b0eb..b055625e4eb5 100644 --- a/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c +++ b/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c @@ -69,5 +69,5 @@ int main(int argc, char **argv) /* Multi-threaded */ test_mt_membarrier(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/membarrier/membarrier_test_single_thread.c b/tools/testing/selftests/membarrier/membarrier_test_single_thread.c index c1c963902854..daec48e0b6f2 100644 --- a/tools/testing/selftests/membarrier/membarrier_test_single_thread.c +++ b/tools/testing/selftests/membarrier/membarrier_test_single_thread.c @@ -20,5 +20,5 @@ int main(int argc, char **argv) test_membarrier_success(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c index 1bddbe934204..b33f548bfca9 100644 --- a/tools/testing/selftests/openat2/openat2_test.c +++ b/tools/testing/selftests/openat2/openat2_test.c @@ -320,8 +320,5 @@ int main(int argc, char **argv) test_openat2_struct(); test_openat2_flags(); - if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0) - ksft_exit_fail(); - else - ksft_exit_pass(); + ksft_exit(!(ksft_get_fail_cnt() + ksft_get_error_cnt())); } diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c index 22558524f71c..d6c5cfd1c4c6 100644 --- a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c +++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c @@ -292,5 +292,5 @@ int main(int argc, char **argv) test_pidfd_fdinfo_nspid(); test_pidfd_dead_fdinfo(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/pidfd/pidfd_open_test.c b/tools/testing/selftests/pidfd/pidfd_open_test.c index 8a59438ccc78..7cad4ccfc347 100644 --- a/tools/testing/selftests/pidfd/pidfd_open_test.c +++ b/tools/testing/selftests/pidfd/pidfd_open_test.c @@ -159,5 +159,5 @@ int main(int argc, char **argv) if (pidfd >= 0) close(pidfd); - return !ret ? ksft_exit_pass() : ksft_exit_fail(); + ksft_exit(!ret); } diff --git a/tools/testing/selftests/pidfd/pidfd_poll_test.c b/tools/testing/selftests/pidfd/pidfd_poll_test.c index 610811275357..55d74a50358f 100644 --- a/tools/testing/selftests/pidfd/pidfd_poll_test.c +++ b/tools/testing/selftests/pidfd/pidfd_poll_test.c @@ -112,5 +112,5 @@ int main(int argc, char **argv) } ksft_test_result_pass("pidfd poll test: pass\n"); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c index 529eb700ac26..4a4ab7e25796 100644 --- a/tools/testing/selftests/pidfd/pidfd_test.c +++ b/tools/testing/selftests/pidfd/pidfd_test.c @@ -569,5 +569,5 @@ int main(int argc, char **argv) test_pidfd_send_signal_exited_fail(); test_pidfd_send_signal_recycled_pid_fail(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c index 973f09a66e1e..e1cf5a73571b 100644 --- a/tools/testing/selftests/resctrl/resctrl_tests.c +++ b/tools/testing/selftests/resctrl/resctrl_tests.c @@ -205,7 +205,7 @@ int main(int argc, char **argv) * 2. We execute perf commands */ if (geteuid() != 0) - return ksft_exit_fail_msg("Not running as root, abort testing.\n"); + ksft_exit_fail_msg("Not running as root, abort testing.\n"); /* Detect AMD vendor */ detect_amd(); @@ -235,7 +235,7 @@ int main(int argc, char **argv) sprintf(bm_type, "fill_buf"); if (!check_resctrlfs_support()) - return ksft_exit_fail_msg("resctrl FS does not exist\n"); + ksft_exit_fail_msg("resctrl FS does not exist\n"); filter_dmesg(); @@ -255,5 +255,5 @@ int main(int argc, char **argv) umount_resctrlfs(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/sync/sync_test.c b/tools/testing/selftests/sync/sync_test.c index 414a617db993..aec7057696de 100644 --- a/tools/testing/selftests/sync/sync_test.c +++ b/tools/testing/selftests/sync/sync_test.c @@ -110,5 +110,5 @@ int main(void) err, ksft_test_num()); /* need this return to keep gcc happy */ - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/adjtick.c b/tools/testing/selftests/timers/adjtick.c index 54d8d87f36b3..c917129f142f 100644 --- a/tools/testing/selftests/timers/adjtick.c +++ b/tools/testing/selftests/timers/adjtick.c @@ -204,8 +204,5 @@ int main(int argv, char **argc) adjtimex(&tx1); - if (err) - return ksft_exit_fail(); - - return ksft_exit_pass(); + ksft_exit(!err); } diff --git a/tools/testing/selftests/timers/alarmtimer-suspend.c b/tools/testing/selftests/timers/alarmtimer-suspend.c index 4da09dbf83ba..c7c175f3f918 100644 --- a/tools/testing/selftests/timers/alarmtimer-suspend.c +++ b/tools/testing/selftests/timers/alarmtimer-suspend.c @@ -172,7 +172,5 @@ int main(void) } timer_delete(tm1); } - if (final_ret) - return ksft_exit_fail(); - return ksft_exit_pass(); + ksft_exit(!final_ret); } diff --git a/tools/testing/selftests/timers/change_skew.c b/tools/testing/selftests/timers/change_skew.c index c4eab7124990..afd65745e7c2 100644 --- a/tools/testing/selftests/timers/change_skew.c +++ b/tools/testing/selftests/timers/change_skew.c @@ -87,10 +87,5 @@ int main(int argv, char **argc) tx.offset = 0; adjtimex(&tx); - if (ret) { - printf("[FAIL]"); - return ksft_exit_fail(); - } - printf("[OK]"); - return ksft_exit_pass(); + ksft_exit(!ret); } diff --git a/tools/testing/selftests/timers/clocksource-switch.c b/tools/testing/selftests/timers/clocksource-switch.c index ef8eb3604595..41bce2ed8ef4 100644 --- a/tools/testing/selftests/timers/clocksource-switch.c +++ b/tools/testing/selftests/timers/clocksource-switch.c @@ -162,7 +162,5 @@ int main(int argv, char **argc) out: change_clocksource(orig_clk); - if (status) - return ksft_exit_fail(); - return ksft_exit_pass(); + ksft_exit(!status); } diff --git a/tools/testing/selftests/timers/freq-step.c b/tools/testing/selftests/timers/freq-step.c index 4b76450d78d1..f060fa5450d1 100644 --- a/tools/testing/selftests/timers/freq-step.c +++ b/tools/testing/selftests/timers/freq-step.c @@ -256,8 +256,5 @@ int main(int argc, char **argv) set_frequency(0.0); - if (fails) - return ksft_exit_fail(); - - return ksft_exit_pass(); + ksft_exit(!fails); } diff --git a/tools/testing/selftests/timers/inconsistency-check.c b/tools/testing/selftests/timers/inconsistency-check.c index 022d3ffe3fbf..71362be52dc8 100644 --- a/tools/testing/selftests/timers/inconsistency-check.c +++ b/tools/testing/selftests/timers/inconsistency-check.c @@ -186,8 +186,8 @@ int main(int argc, char *argv[]) if (!clock_gettime(clockid, &ts)) { printf("Consistent %-30s ", clockstring(clockid)); if (consistency_test(clockid, runtime)) - return ksft_exit_fail(); + ksft_exit_fail(); } } - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/leap-a-day.c b/tools/testing/selftests/timers/leap-a-day.c index 23eb398c8140..986abbdb1521 100644 --- a/tools/testing/selftests/timers/leap-a-day.c +++ b/tools/testing/selftests/timers/leap-a-day.c @@ -268,7 +268,7 @@ int main(int argc, char **argv) if (ret < 0) { printf("Error: Problem setting STA_INS/STA_DEL!: %s\n", time_state_str(ret)); - return ksft_exit_fail(); + ksft_exit_fail(); } /* Validate STA_INS was set */ @@ -277,7 +277,7 @@ int main(int argc, char **argv) if (tx.status != STA_INS && tx.status != STA_DEL) { printf("Error: STA_INS/STA_DEL not set!: %s\n", time_state_str(ret)); - return ksft_exit_fail(); + ksft_exit_fail(); } if (tai_time) { @@ -295,7 +295,7 @@ int main(int argc, char **argv) se.sigev_value.sival_int = 0; if (timer_create(CLOCK_REALTIME, &se, &tm1) == -1) { printf("Error: timer_create failed\n"); - return ksft_exit_fail(); + ksft_exit_fail(); } its1.it_value.tv_sec = next_leap; its1.it_value.tv_nsec = 0; @@ -366,7 +366,7 @@ int main(int argc, char **argv) if (error_found) { printf("Errors observed\n"); clear_time_state(); - return ksft_exit_fail(); + ksft_exit_fail(); } printf("\n"); if ((iterations != -1) && !(--iterations)) @@ -374,5 +374,5 @@ int main(int argc, char **argv) } clear_time_state(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/leapcrash.c b/tools/testing/selftests/timers/leapcrash.c index f70802c5dd0d..8fd065eec904 100644 --- a/tools/testing/selftests/timers/leapcrash.c +++ b/tools/testing/selftests/timers/leapcrash.c @@ -87,7 +87,7 @@ int main(void) tv.tv_usec = 0; if (settimeofday(&tv, NULL)) { printf("Error: You're likely not running with proper (ie: root) permissions\n"); - return ksft_exit_fail(); + ksft_exit_fail(); } tx.modes = 0; adjtimex(&tx); @@ -104,5 +104,5 @@ int main(void) fflush(stdout); } printf("[OK]\n"); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/mqueue-lat.c b/tools/testing/selftests/timers/mqueue-lat.c index 7916cf5cc6ff..66feb333ff98 100644 --- a/tools/testing/selftests/timers/mqueue-lat.c +++ b/tools/testing/selftests/timers/mqueue-lat.c @@ -105,10 +105,5 @@ int main(int argc, char **argv) fflush(stdout); ret = mqueue_lat_test(); - if (ret < 0) { - printf("[FAILED]\n"); - return ksft_exit_fail(); - } - printf("[OK]\n"); - return ksft_exit_pass(); + ksft_exit(!ret); } diff --git a/tools/testing/selftests/timers/nanosleep.c b/tools/testing/selftests/timers/nanosleep.c index 71b5441c2fd9..40ff3d710d66 100644 --- a/tools/testing/selftests/timers/nanosleep.c +++ b/tools/testing/selftests/timers/nanosleep.c @@ -153,7 +153,7 @@ int main(int argc, char **argv) } if (ret < 0) { printf("[FAILED]\n"); - return ksft_exit_fail(); + ksft_exit_fail(); } length *= 100; } @@ -161,5 +161,5 @@ int main(int argc, char **argv) next: ret = 0; } - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/nsleep-lat.c b/tools/testing/selftests/timers/nsleep-lat.c index eb3e79ed7b4a..4c201a06cb94 100644 --- a/tools/testing/selftests/timers/nsleep-lat.c +++ b/tools/testing/selftests/timers/nsleep-lat.c @@ -172,9 +172,9 @@ int main(int argc, char **argv) } if (ret < 0) { printf("[FAILED]\n"); - return ksft_exit_fail(); + ksft_exit_fail(); } printf("[OK]\n"); } - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/posix_timers.c b/tools/testing/selftests/timers/posix_timers.c index 0ba500056e63..337424c5c987 100644 --- a/tools/testing/selftests/timers/posix_timers.c +++ b/tools/testing/selftests/timers/posix_timers.c @@ -194,16 +194,16 @@ int main(int argc, char **argv) printf("based timers if other threads run on the CPU...\n"); if (check_itimer(ITIMER_VIRTUAL) < 0) - return ksft_exit_fail(); + ksft_exit_fail(); if (check_itimer(ITIMER_PROF) < 0) - return ksft_exit_fail(); + ksft_exit_fail(); if (check_itimer(ITIMER_REAL) < 0) - return ksft_exit_fail(); + ksft_exit_fail(); if (check_timer_create(CLOCK_THREAD_CPUTIME_ID) < 0) - return ksft_exit_fail(); + ksft_exit_fail(); /* * It's unfortunately hard to reliably test a timer expiration @@ -215,7 +215,7 @@ int main(int argc, char **argv) * find a better solution. */ if (check_timer_create(CLOCK_PROCESS_CPUTIME_ID) < 0) - return ksft_exit_fail(); + ksft_exit_fail(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/raw_skew.c b/tools/testing/selftests/timers/raw_skew.c index b41d8dd0c40c..b58639a7d19d 100644 --- a/tools/testing/selftests/timers/raw_skew.c +++ b/tools/testing/selftests/timers/raw_skew.c @@ -138,11 +138,11 @@ int main(int argv, char **argc) if (tx1.offset || tx2.offset || tx1.freq != tx2.freq || tx1.tick != tx2.tick) { printf(" [SKIP]\n"); - return ksft_exit_skip("The clock was adjusted externally. Shutdown NTPd or other time sync daemons\n"); + ksft_exit_skip("The clock was adjusted externally. Shutdown NTPd or other time sync daemons\n"); } printf(" [FAILED]\n"); - return ksft_exit_fail(); + ksft_exit_fail(); } printf(" [OK]\n"); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/set-2038.c b/tools/testing/selftests/timers/set-2038.c index 688cfd81b531..f7d978721b9e 100644 --- a/tools/testing/selftests/timers/set-2038.c +++ b/tools/testing/selftests/timers/set-2038.c @@ -128,6 +128,6 @@ int main(int argc, char *argv[]) /* restore clock */ settime(start); if (ret) - return ksft_exit_fail(); - return ksft_exit_pass(); + ksft_exit_fail(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/set-tai.c b/tools/testing/selftests/timers/set-tai.c index 8c4179ee2ca2..5b67462efcd6 100644 --- a/tools/testing/selftests/timers/set-tai.c +++ b/tools/testing/selftests/timers/set-tai.c @@ -61,9 +61,9 @@ int main(int argc, char **argv) ret = get_tai(); if (ret != i) { printf("[FAILED] expected: %i got %i\n", i, ret); - return ksft_exit_fail(); + ksft_exit_fail(); } } printf("[OK]\n"); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/set-timer-lat.c b/tools/testing/selftests/timers/set-timer-lat.c index 50da45437daa..7ce240c89b21 100644 --- a/tools/testing/selftests/timers/set-timer-lat.c +++ b/tools/testing/selftests/timers/set-timer-lat.c @@ -278,6 +278,6 @@ int main(void) ret |= do_timer_oneshot(clock_id, 0); } if (ret) - return ksft_exit_fail(); - return ksft_exit_pass(); + ksft_exit_fail(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/set-tz.c b/tools/testing/selftests/timers/set-tz.c index 62bd33eb16f0..20daaf1782b7 100644 --- a/tools/testing/selftests/timers/set-tz.c +++ b/tools/testing/selftests/timers/set-tz.c @@ -102,9 +102,9 @@ int main(int argc, char **argv) printf("[OK]\n"); set_tz(min, dst); - return ksft_exit_pass(); + ksft_exit_pass(); err: set_tz(min, dst); - return ksft_exit_fail(); + ksft_exit_fail(); } diff --git a/tools/testing/selftests/timers/skew_consistency.c b/tools/testing/selftests/timers/skew_consistency.c index 8066be9aff11..bfeaac8d870d 100644 --- a/tools/testing/selftests/timers/skew_consistency.c +++ b/tools/testing/selftests/timers/skew_consistency.c @@ -70,8 +70,8 @@ int main(int argv, char **argc) if (ret) { printf("[FAILED]\n"); - return ksft_exit_fail(); + ksft_exit_fail(); } printf("[OK]\n"); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/threadtest.c b/tools/testing/selftests/timers/threadtest.c index 80aed4bf06fb..76b38e41d9c7 100644 --- a/tools/testing/selftests/timers/threadtest.c +++ b/tools/testing/selftests/timers/threadtest.c @@ -189,5 +189,5 @@ int main(int argc, char **argv) /* die */ if (ret) ksft_exit_fail(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/timers/valid-adjtimex.c b/tools/testing/selftests/timers/valid-adjtimex.c index 5397de708d3c..48804223eb4d 100644 --- a/tools/testing/selftests/timers/valid-adjtimex.c +++ b/tools/testing/selftests/timers/valid-adjtimex.c @@ -321,10 +321,10 @@ int validate_set_offset(void) int main(int argc, char **argv) { if (validate_freq()) - return ksft_exit_fail(); + ksft_exit_fail(); if (validate_set_offset()) - return ksft_exit_fail(); + ksft_exit_fail(); - return ksft_exit_pass(); + ksft_exit_pass(); } diff --git a/tools/testing/selftests/vm/madv_populate.c b/tools/testing/selftests/vm/madv_populate.c index 3ee0e8275600..5f2f8ad32248 100644 --- a/tools/testing/selftests/vm/madv_populate.c +++ b/tools/testing/selftests/vm/madv_populate.c @@ -325,5 +325,5 @@ int main(int argc, char **argv) if (err) ksft_exit_fail_msg("%d out of %d tests failed\n", err, ksft_test_num()); - return ksft_exit_pass(); + ksft_exit_pass(); } -- 2.33.0

3 years, 3 months

4
6
0 0

[GIT PULL] KUnit update for Linux 5.16-rc1

by Shuah Khan

Hi Linus, Please pull the following KUnit update for Linux 5.16-rc1. This KUnit update for Linux 5.16-rc1 consist of several enhancements and fixes: - ability to run each test suite and test separately - support for timing test run - several fixes and improvements diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 519d81956ee277b4419c723adfb154603c2565ba: Linux 5.15-rc6 (2021-10-17 20:00:13 -1000) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-5.16-rc1 for you to fetch changes up to 52a5d80a2225e2d0b2a8f4656b76aead2a443b2a: kunit: tool: fix typecheck errors about loading qemu configs (2021-10-29 13:05:47 -0600) ---------------------------------------------------------------- linux-kselftest-kunit-5.16-rc1 This KUnit update for Linux 5.16-rc1 consist of several enhancements and fixes: - ability to run each test suite and test separately - support for timing test run - several fixes and improvements ---------------------------------------------------------------- Daniel Latypov (12): kunit: drop assumption in kunit-log-test about current suite kunit: tool: allow filtering test cases via glob kunit: fix too small allocation when using suite-only kunit.filter_glob kunit: tool: misc fixes (unused vars, imports, leaked files) kunit: tool: show list of valid --arch options when invalid kunit: add 'kunit.action' param to allow listing out tests kunit: tool: factor exec + parse steps into a function kunit: tool: actually track how long it took to run tests kunit: tool: support running each suite/test separately kunit: tool: yield output from run_kernel in real time kunit: tool: continue past invalid utf-8 output kunit: tool: fix typecheck errors about loading qemu configs David Gow (1): kunit: Reset suite count after running tests Rae Moar (1): kunit: tool: improve compatibility of kunit_parser with KTAP specification Documentation/dev-tools/kunit/running_tips.rst | 11 +- lib/kunit/executor.c | 152 ++- lib/kunit/executor_test.c | 110 ++- lib/kunit/kunit-test.c | 14 +- lib/kunit/test.c | 6 +- tools/testing/kunit/kunit.py | 154 ++- tools/testing/kunit/kunit_json.py | 56 +- tools/testing/kunit/kunit_kernel.py | 107 ++- tools/testing/kunit/kunit_parser.py | 1015 ++++++++++++++------ tools/testing/kunit/kunit_tool_test.py | 211 +++- .../test_is_test_passed-all_passed_nested.log | 34 + .../test_data/test_is_test_passed-kselftest.log | 14 + .../test_data/test_is_test_passed-missing_plan.log | 31 + .../testing/kunit/test_data/test_strip_hyphen.log | 16 + 14 files changed, 1413 insertions(+), 518 deletions(-) create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-all_passed_nested.log create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-kselftest.log create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-missing_plan.log create mode 100644 tools/testing/kunit/test_data/test_strip_hyphen.log ----------------------------------------------------------------

3 years, 3 months

2
1
0 0

[GIT PULL] Kselftest next update for Linux 5.16-rc1

by Shuah Khan

Hi Linus, Please pull the following Kselftest next update for Linux 5.16-rc1. This Kselftest update for Linux 5.16-rc1 consists of fixes to compile time errors and warnings. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 519d81956ee277b4419c723adfb154603c2565ba: Linux 5.15-rc6 (2021-10-17 20:00:13 -1000) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-next-5.16-rc1 for you to fetch changes up to f35dcaa0a8a29188ed61083d153df1454cf89d08: selftests/core: fix conflicting types compile error for close_range() (2021-10-29 13:09:42 -0600) ---------------------------------------------------------------- linux-kselftest-next-5.16-rc1 This Kselftest update for Linux 5.16-rc1 consists of fixes to compile time error and warnings. ---------------------------------------------------------------- Shuah Khan (3): selftests: kvm: fix mismatched fclose() after popen() selftests: x86: fix [-Wstringop-overread] warn in test_process_vm_readv() selftests/core: fix conflicting types compile error for close_range() tools/testing/selftests/core/close_range_test.c | 2 +- tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 2 +- tools/testing/selftests/x86/test_vsyscall.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) ----------------------------------------------------------------

3 years, 3 months

2
1
0 0

[PATCH] kunit: add run_checks.py script to validate kunit changes

by Daniel Latypov

This formalizes the checks KUnit maintainers have been running (or in other cases: forgetting to run). This script also runs them all in parallel to minimize friction (pytype can be fairly slow, but not slower than running kunit.py). Example output: $ ./tools/testing/kunit/run_checks.py Waiting on 4 checks (kunit_tool_test.py, kunit smoke test, pytype, mypy)... kunit_tool_test.py: PASSED mypy: PASSED pytype: PASSED kunit smoke test: PASSED On failure or timeout (5 minutes), it'll dump out the stdout/stderr. E.g. adding in a type-checking error: mypy: FAILED > kunit.py:54: error: Name 'nonexistent_function' is not defined > Found 1 error in 1 file (checked 8 source files) mypy and pytype are two Python type-checkers and must be installed. This file treats them as optional and will mark them as SKIPPED if not installed. This tool also runs `kunit.py run --kunitconfig=lib/kunit` to run KUnit's own KUnit tests and to verify KUnit kernel code and kunit.py play nicely together. It uses --build_dir=kunit_run_checks so as not to clobber the default build_dir, which helps make it faster by reducing the need to rebuild, esp. if you're been passing in --arch instead of using UML. Signed-off-by: Daniel Latypov <dlatypov(a)google.com> --- tools/testing/kunit/run_checks.py | 76 +++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100755 tools/testing/kunit/run_checks.py diff --git a/tools/testing/kunit/run_checks.py b/tools/testing/kunit/run_checks.py new file mode 100755 index 000000000000..d03ca3f84b91 --- /dev/null +++ b/tools/testing/kunit/run_checks.py @@ -0,0 +1,76 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0 +# +# This file runs some basic checks to verify kunit works. +# It is only of interest if you're making changes to KUnit itself. +# +# Copyright (C) 2021, Google LLC. +# Author: Daniel Latypov <dlatypov(a)google.com.com> + +from concurrent import futures +import datetime +import os +import shutil +import subprocess +import sys +import textwrap +from typing import Dict, List, Sequence, Tuple + +ABS_TOOL_PATH = os.path.abspath(os.path.dirname(__file__)) +_TIMEOUT = datetime.timedelta(minutes=5).total_seconds() + +commands: Dict[str, Sequence[str]] = { + 'kunit_tool_test.py': ['./kunit_tool_test.py'], + 'kunit smoke test': ['./kunit.py', 'run', '--kunitconfig=lib/kunit', '--build_dir=kunit_run_checks'], + 'pytype': ['/bin/sh', '-c', 'pytype *.py'], + 'mypy': ['/bin/sh', '-c', 'mypy *.py'], +} + +# The user might not have mypy or pytype installed, skip them if so. +# Note: you can install both via `$ pip install mypy pytype` +necessary_deps : Dict[str, str] = { + 'pytype': 'pytype', + 'mypy': 'mypy', +} + +def main(argv: Sequence[str]) -> None: + if len(argv) > 1: + raise RuntimeError('Too many command-line arguments.') + + future_to_name: Dict[futures.Future, str] = {} + executor = futures.ThreadPoolExecutor(max_workers=len(commands)) + for name, argv in commands.items(): + if name in necessary_deps and shutil.which(necessary_deps[name]) is None: + print(f'{name}: SKIPPED, {necessary_deps[name]} not in $PATH') + continue + f = executor.submit(run_cmd, argv) + future_to_name[f] = name + + print(f'Waiting on {len(future_to_name)} checks ({", ".join(future_to_name.values())})...') + for f in futures.as_completed(future_to_name.keys()): + name = future_to_name[f] + ex = f.exception() + if not ex: + print(f'{name}: PASSED') + continue + + if isinstance(ex, subprocess.TimeoutExpired): + print(f'{name}: TIMED OUT') + elif isinstance(ex, subprocess.CalledProcessError): + print(f'{name}: FAILED') + else: + print('{name}: unexpected exception: {ex}') + continue + + output = ex.output + if output: + print(textwrap.indent(output.decode(), '> ')) + executor.shutdown() + + +def run_cmd(argv: Sequence[str]): + subprocess.check_output(argv, stderr=subprocess.STDOUT, cwd=ABS_TOOL_PATH, timeout=_TIMEOUT) + + +if __name__ == '__main__': + main(sys.argv[1:]) base-commit: 52a5d80a2225e2d0b2a8f4656b76aead2a443b2a -- 2.33.1.1089.g2158813163f-goog

3 years, 3 months

2
2
0 0

[PATCHv2 net 0/5] kselftests/net: add missed tests to Makefile

by Hangbin Liu

When generating the selftest to another folder, some tests are missing as they are not added in Makefile. e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests These pathset add them separately to make the Fixes tags less. It would also make the stable tree or downstream backport easier. If you think there is no need to add the Fixes tag for this minor issue. I can repost a new patch and merge all the fixes together. Thanks v2: move toeplitz.sh/toeplitz_client.sh under TEST_PROGS_EXTENDED. Hangbin Liu (5): kselftests/net: add missed icmp.sh test to Makefile kselftests/net: add missed setup_loopback.sh/setup_veth.sh to Makefile kselftests/net: add missed SRv6 tests kselftests/net: add missed vrf_strict_mode_test.sh test to Makefile kselftests/net: add missed toeplitz.sh/toeplitz_client.sh to Makefile tools/testing/selftests/net/Makefile | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) -- 2.31.1

3 years, 3 months

3
8
0 0

[REGRESSION] lkft kselftest for next-20211102

by lkft＠linaro.org

## Build * kernel: 5.15.0 * git: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next * git branch: master * git commit: 9150de4aac1eb6e6441b2b086f6ca8132aaea040 * git describe: next-20211102 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20211102 ## Regressions (compared to next-20211029) * i386, kselftest-net - net.tls - net.tls.tls.12_aes_gcm.send_then_sendfile - net.tls.tls.12_chacha.send_then_sendfile - net.tls.tls.13_aes_gcm.send_then_sendfile - net.tls.tls.13_chacha.send_then_sendfile - net.tls.tls.13_sm4_ccm.send_then_sendfile - net.tls.tls.13_sm4_gcm.send_then_sendfile * qemu_arm, kselftest-timers - timers.rtcpie Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Fixes (compared to next-20211029) * i386, kselftest-net - net.so_txtime.sh * i386, kselftest-rtc - rtc.rtctest * i386, kselftest-seccomp - seccomp.seccomp_bpf.TRACE_syscall.ptrace.kill_after - seccomp.seccomp_bpf.TRACE_syscall.seccomp.kill_after * qemu_arm, kselftest-rtc - rtc.rtctest * qemu_i386, kselftest-rtc - rtc.rtctest * qemu_x86_64, kselftest-seccomp - seccomp.seccomp_bpf - seccomp.seccomp_bpf.TRACE_syscall.ptrace.kill_after - seccomp.seccomp_bpf.TRACE_syscall.seccomp.kill_after * qemu_x86_64, kselftest-x86 - x86.iopl_64 * x15, kselftest-rtc - rtc.rtctest - rtc.rtctest.rtc.alarm_alm_set - rtc.rtctest.rtc.alarm_alm_set_minute - rtc.rtctest.rtc.alarm_wkalm_set - rtc.rtctest.rtc.alarm_wkalm_set_minute - rtc.rtctest.rtc.date_read * x86, kselftest-seccomp - seccomp.seccomp_bpf.TRACE_syscall.ptrace.kill_after - seccomp.seccomp_bpf.TRACE_syscall.seccomp.kill_after * x86, kselftest-x86 - x86.iopl_64 ## Test result summary total: 2893, pass: 1766, fail: 200, skip: 927, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * kselftest-arm64/arm64.btitest.bti_c_func * kselftest-arm64/arm64.btitest.bti_j_func * kselftest-arm64/arm64.btitest.bti_jc_func * kselftest-arm64/arm64.btitest.bti_none_func * kselftest-arm64/arm64.btitest.nohint_func * kselftest-arm64/arm64.btitest.paciasp_func * kselftest-arm64/arm64.nobtitest.bti_c_func * kselftest-arm64/arm64.nobtitest.bti_j_func * kselftest-arm64/arm64.nobtitest.bti_jc_func * kselftest-arm64/arm64.nobtitest.bti_none_func * kselftest-arm64/arm64.nobtitest.nohint_func * kselftest-arm64/arm64.nobtitest.paciasp_func * kselftest-bpf * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-drivers * kselftest-efivarfs * kselftest-filesystems * kselftest-firmware * kselftest-fpu * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-ir * kselftest-kcmp * kselftest-kexec * kselftest-kvm * kselftest-lib * kselftest-livepatch * kselftest-lkdtm * kselftest-membarrier * kselftest-net * kselftest-netfilter * kselftest-nsfs * kselftest-openat2 * kselftest-pid_namespace * kselftest-pidfd * kselftest-proc * kselftest-pstore * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-splice * kselftest-static_keys * kselftest-sync * kselftest-sysctl * kselftest-tc-testing * kselftest-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

3 years, 3 months

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[PATCH -next v2] bpf/benchs: Fix return value check of bpf_program__attach()

by Yang Yingliang

If bpf_program__attach() fails, it never returns NULL, we should use libbpf_get_error() to check the return value. Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Acked-by: Yonghong Song <yhs(a)fb.com> --- v2: don't use 'int err' --- .../selftests/bpf/benchs/bench_bloom_filter_map.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c b/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c index 6eeeed2913e6..4afaa4adb327 100644 --- a/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c +++ b/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c @@ -304,7 +304,7 @@ static void bloom_lookup_setup(void) populate_maps(); link = bpf_program__attach(ctx.skel->progs.bloom_lookup); - if (!link) { + if (libbpf_get_error(link)) { fprintf(stderr, "failed to attach program!\n"); exit(1); } @@ -321,7 +321,7 @@ static void bloom_update_setup(void) populate_maps(); link = bpf_program__attach(ctx.skel->progs.bloom_update); - if (!link) { + if (libbpf_get_error(link)) { fprintf(stderr, "failed to attach program!\n"); exit(1); } @@ -340,7 +340,7 @@ static void false_positive_setup(void) populate_maps(); link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup); - if (!link) { + if (libbpf_get_error(link)) { fprintf(stderr, "failed to attach program!\n"); exit(1); } @@ -358,7 +358,7 @@ static void hashmap_with_bloom_setup(void) populate_maps(); link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup); - if (!link) { + if (libbpf_get_error(link)) { fprintf(stderr, "failed to attach program!\n"); exit(1); } @@ -375,7 +375,7 @@ static void hashmap_no_bloom_setup(void) populate_maps(); link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup); - if (!link) { + if (libbpf_get_error(link)) { fprintf(stderr, "failed to attach program!\n"); exit(1); } -- 2.25.1

3 years, 3 months

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[PATCH net 0/5] kselftests/net: add missed tests to Makefile

by Hangbin Liu

When generating the selftest to another folder, some tests are missing as they are not added in Makefile. e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests These pathset add them separately to make the Fixes tags less. It would also make the stable tree or downstream backport easier. If you think there is no need to add the Fixes tag for this minor issue. I can repost a new patch and merge all the fixes together. Thanks Hangbin Liu (5): kselftests/net: add missed icmp.sh test to Makefile kselftests/net: add missed setup_loopback.sh/setup_veth.sh to Makefile kselftests/net: add missed SRv6 tests kselftests/net: add missed toeplitz.sh/toeplitz_client.sh to Makefile kselftests/net: add missed vrf_strict_mode_test.sh test to Makefile tools/testing/selftests/net/Makefile | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) -- 2.31.1

3 years, 3 months

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