July 2025 - Linux-kselftest-mirror

[PATCH net-next 0/2] selftests: drv-net: Fix and improve command requirement checking

by Gal Pressman

This series fixes remote command checking and cleans up command requirement calls across tests. The first patch fixes require_cmd() incorrectly checking commands locally even when remote=True was specified due to a missing host parameter. The second patch makes require_cmd() usage explicit about local/remote requirements, avoiding unnecessary test failures and consolidating duplicate calls. Gal Pressman (2): selftests: drv-net: Fix remote command checking in require_cmd() selftests: drv-net: Make command requirements explicit tools/testing/selftests/drivers/net/hw/devlink_rate_tc_bw.py | 3 +-- tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py | 2 +- tools/testing/selftests/drivers/net/hw/tso.py | 2 +- tools/testing/selftests/drivers/net/lib/py/env.py | 2 +- tools/testing/selftests/drivers/net/lib/py/load.py | 2 +- tools/testing/selftests/drivers/net/ping.py | 2 +- 6 files changed, 6 insertions(+), 7 deletions(-) -- 2.40.1

2 months, 2 weeks

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[PATCH net 0/3] selftests: drv-net: tso: fix issues with tso selftest

by Daniel Zahka

There are a couple issues with the tso selftest. - Features required for test cases are detected by searching the set of active features at test start, so if a feature is supported by hw, but disabled, the test will report that the feature under test is not available and fail. - The vxlan test cases do not use the correct ip link flags based on the gso feature under test - The non-tunneled tso6 test case is showing up with the wrong name. With all patches applied test output is: # Detected qstat for LSO wire-packets TAP version 13 1..14 ok 1 tso.ipv4 # Testing with mangleid enabled ok 2 tso.vxlan4_ipv4 ok 3 tso.vxlan4_ipv6 # Testing with mangleid enabled ok 4 tso.vxlan_csum4_ipv4 ok 5 tso.vxlan_csum4_ipv6 # Testing with mangleid enabled ok 6 tso.gre4_ipv4 ok 7 tso.gre4_ipv6 ok 8 tso.ipv6 # Testing with mangleid enabled ok 9 tso.vxlan6_ipv4 ok 10 tso.vxlan6_ipv6 # Testing with mangleid enabled ok 11 tso.vxlan_csum6_ipv4 ok 12 tso.vxlan_csum6_ipv6 # Testing with mangleid enabled ok 13 tso.gre6_ipv4 ok 14 tso.gre6_ipv6 # Totals: pass:14 fail:0 xfail:0 xpass:0 skip:0 error:0 Daniel Zahka (3): selftests: drv-net: tso: enable test cases based on hw_features selftests: drv-net: tso: fix vxlan tunnel flags to get correct gso_type selftests: drv-net: tso: fix non-tunneled tso6 test case name tools/testing/selftests/drivers/net/hw/tso.py | 99 +++++++++++-------- 1 file changed, 59 insertions(+), 40 deletions(-) -- 2.47.1

2 months, 2 weeks

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[PATCH RFC] selftests/pidfd: Fix duplicate-symbol warnings for SCHED_ CPP symbols

by Paul E. McKenney

The pidfd selftests run in userspace and include both userspace and kernel header files. On some distros (for example, CentOS), this results in duplicate-symbol warnings in allmodconfig builds, while on other distros (for example, Ubuntu) it does not. (This happens in recent -next trees, including next-20250714.) Therefore, use #undef to get rid of the userspace definitions in favor of the kernel definitions. Other ways of handling this include splitting up the selftest code so that the userspace definitions go into one translation unit and the kernel definitions into another (which might or might not be feasible) or to adjust compiler command-line options to suppress the warnings (which might or might not be desirable). Signed-off-by: Paul E. McKenney <paulmck(a)kernel.org> Cc: Christian Brauner <brauner(a)kernel.org> Cc: Shuah Khan <shuah(a)kernel.org> Cc: <linux-kselftest(a)vger.kernel.org> --- pidfd.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h index efd74063126eb..6ff495398e872 100644 --- a/tools/testing/selftests/pidfd/pidfd.h +++ b/tools/testing/selftests/pidfd/pidfd.h @@ -16,6 +16,10 @@ #include <sys/types.h> #include <sys/wait.h> +#undef SCHED_NORMAL +#undef SCHED_FLAG_KEEP_ALL +#undef SCHED_FLAG_UTIL_CLAMP + #include "../kselftest.h" #include "../clone3/clone3_selftests.h"

2 months, 2 weeks

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[PATCH] selftests/bpf: Install test modules into $INSTALL_PATH

by Ricardo B. Marlière

The tests expect the modules to be in the same working directory, but when using a different $INSTALL_PATH they are not copied over. Signed-off-by: Ricardo B. Marlière <rbm(a)suse.com> --- # cd tools/testing/selftests/kselftest_install && ./run_kselftest.sh -t bpf:test_verifier TAP version 13 1..1 # timeout set to 0 # selftests: bpf: test_verifier # Can't find bpf_testmod.ko kernel module: -2 not ok 1 selftests: bpf: test_verifier # exit=1 --- tools/testing/selftests/bpf/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 4863106034dfbcd35f830432322f054d897bb406..56b0565af8a76a9e784836a836935dd22e814fc0 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -877,5 +877,7 @@ override define INSTALL_RULE @for DIR in $(TEST_INST_SUBDIRS); do \ mkdir -p $(INSTALL_PATH)/$$DIR; \ rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\ + rsync -a $(OUTPUT)/$$DIR/*.ko $(INSTALL_PATH)/$$DIR;\ + rsync -a $(OUTPUT)/*.ko $(INSTALL_PATH);\ done endef --- base-commit: f227e9ed4fe4f2fed40e4725d6c10860d30c2ea2 change-id: 20250724-bpf-next_for-next-f1de3e4becc8 Best regards, -- Ricardo B. Marlière <rbm(a)suse.com>

2 months, 2 weeks

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[PATCH] selftests/tracing: Fix false failure of subsystem event test

by Steven Rostedt

From: Steven Rostedt <rostedt(a)goodmis.org> The subsystem event test enables all "sched" events and makes sure there's at least 3 different events in the output. It used to cat the entire trace file to | wc -l, but on slow machines, that could last a very long time. To solve that, it was changed to just read the first 100 lines of the trace file. This can cause false failures as some events repeat so often, that the 100 lines that are examined could possibly be of only one event. Instead, create an awk script that looks for 3 different events and will exit out after it finds them. This will find the 3 events the test looks for (eventually if it works), and still exit out after the test is satisfied and not cause slower machines to run forever. Reported-by: Tengda Wu <wutengda(a)huaweicloud.com> Closes: https://lore.kernel.org/all/20250710130134.591066-1-wutengda@huaweicloud.co… Fixes: 1a4ea83a6e67 ("selftests/ftrace: Limit length in subsystem-enable tests") Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- .../ftrace/test.d/event/subsystem-enable.tc | 28 +++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc index b7c8f29c09a9..65916bb55dfb 100644 --- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc +++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc @@ -14,11 +14,35 @@ fail() { #msg exit_fail } +# As reading trace can last forever, simply look for 3 different +# events then exit out of reading the file. If there's not 3 different +# events, then the test has failed. +check_unique() { + cat trace | grep -v '^#' | awk ' + BEGIN { cnt = 0; } + { + for (i = 0; i < cnt; i++) { + if (event[i] == $5) { + break; + } + } + if (i == cnt) { + event[cnt++] = $5; + if (cnt > 2) { + exit; + } + } + } + END { + printf "%d", cnt; + }' +} + echo 'sched:*' > set_event yield -count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` +count=`check_unique` if [ $count -lt 3 ]; then fail "at least fork, exec and exit events should be recorded" fi @@ -29,7 +53,7 @@ echo 1 > events/sched/enable yield -count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l` +count=`check_unique` if [ $count -lt 3 ]; then fail "at least fork, exec and exit events should be recorded" fi -- 2.47.2

2 months, 2 weeks

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[PATCH v2] selftests: firmware: Add details in error logging

by Harshal

Specify details in logs of failed cases Signed-off-by: Harshal <embedkari167(a)gmail.com> --- v2: - revert back to exit() instead of die() to avoid modifying system behaviour v1: https://lore.kernel.org/all/c7c071ed-6a4e-4a9c-ba9d-c745fd42c22f@linuxfound… tools/testing/selftests/firmware/fw_namespace.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/firmware/fw_namespace.c b/tools/testing/selftests/firmware/fw_namespace.c index 04757dc7e546..5b0032498ede 100644 --- a/tools/testing/selftests/firmware/fw_namespace.c +++ b/tools/testing/selftests/firmware/fw_namespace.c @@ -38,7 +38,7 @@ static void trigger_fw(const char *fw_name, const char *sys_path) fd = open(sys_path, O_WRONLY); if (fd < 0) - die("open failed: %s\n", + die("open of sys_path failed: %s\n", strerror(errno)); if (write(fd, fw_name, strlen(fw_name)) != strlen(fw_name)) exit(EXIT_FAILURE); @@ -52,10 +52,10 @@ static void setup_fw(const char *fw_path) fd = open(fw_path, O_WRONLY | O_CREAT, 0600); if (fd < 0) - die("open failed: %s\n", + die("open of firmware file failed: %s\n", strerror(errno)); if (write(fd, fw, sizeof(fw) -1) != sizeof(fw) -1) - die("write failed: %s\n", + die("write to firmware file failed: %s\n", strerror(errno)); close(fd); } @@ -66,7 +66,7 @@ static bool test_fw_in_ns(const char *fw_name, const char *sys_path, bool block_ if (block_fw_in_parent_ns) if (mount("test", "/lib/firmware", "tmpfs", MS_RDONLY, NULL) == -1) - die("blocking firmware in parent ns failed\n"); + die("blocking firmware in parent namespace failed\n"); child = fork(); if (child == -1) { @@ -99,11 +99,11 @@ static bool test_fw_in_ns(const char *fw_name, const char *sys_path, bool block_ strerror(errno)); } if (mount(NULL, "/", NULL, MS_SLAVE|MS_REC, NULL) == -1) - die("remount root in child ns failed\n"); + die("remount root in child namespace failed\n"); if (!block_fw_in_parent_ns) { if (mount("test", "/lib/firmware", "tmpfs", MS_RDONLY, NULL) == -1) - die("blocking firmware in child ns failed\n"); + die("blocking firmware in child namespace failed\n"); } else umount("/lib/firmware"); @@ -129,8 +129,8 @@ int main(int argc, char **argv) die("error: failed to build full fw_path\n"); setup_fw(fw_path); - setvbuf(stdout, NULL, _IONBF, 0); + /* Positive case: firmware in PID1 mount namespace */ printf("Testing with firmware in parent namespace (assumed to be same file system as PID1)\n"); if (!test_fw_in_ns(fw_name, sys_path, false)) -- 2.43.0

2 months, 2 weeks

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[PATCH v18 4/5] binder: add transaction_report feature entry

by Carlos Llamas

From: Li Li <dualli(a)google.com> Add "transaction_report" to the binderfs feature list, to help userspace determine if the "BINDER_CMD_REPORT" generic netlink api is supported by the binder driver. Signed-off-by: Li Li <dualli(a)google.com> Signed-off-by: Carlos Llamas <cmllamas(a)google.com> --- drivers/android/binderfs.c | 8 ++++++++ .../selftests/filesystems/binderfs/binderfs_test.c | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c index 4f827152d18e..f74a7e380261 100644 --- a/drivers/android/binderfs.c +++ b/drivers/android/binderfs.c @@ -59,6 +59,7 @@ struct binder_features { bool oneway_spam_detection; bool extended_error; bool freeze_notification; + bool transaction_report; }; static const struct constant_table binderfs_param_stats[] = { @@ -76,6 +77,7 @@ static struct binder_features binder_features = { .oneway_spam_detection = true, .extended_error = true, .freeze_notification = true, + .transaction_report = true, }; static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb) @@ -616,6 +618,12 @@ static int init_binder_features(struct super_block *sb) if (IS_ERR(dentry)) return PTR_ERR(dentry); + dentry = binderfs_create_file(dir, "transaction_report", + &binder_features_fops, + &binder_features.transaction_report); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + return 0; } diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c index 81db85a5cc16..39a68078a79b 100644 --- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c +++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c @@ -65,6 +65,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata) "oneway_spam_detection", "extended_error", "freeze_notification", + "transaction_report", }; change_mountns(_metadata); -- 2.50.1.470.g6ba607880d-goog

2 months, 2 weeks

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Re: [PATCH net] selftests: rtnetlink.sh: remove esp4_offload after test

by Shannon Nelson

(yeah, I made the same non-ASCII mistake...) On 7/24/25 10:49 AM, Shannon Nelson wrote: > On 7/24/25 1:20 AM, Xiumei Mu wrote: >> resent the reply again with "plain text mode" >> >> On Thu, Jul 24, 2025 at 2:25 PM Hangbin Liu<liuhangbin(a)gmail.com> wrote: >>> Hi Xiumei, >>> On Thu, Jul 24, 2025 at 12:55:02PM +0800, Xiumei Mu wrote: >>>> The esp4_offload module, loaded during IPsec offload tests, should >>>> be reset to its default settings after testing. >>>> Otherwise, leaving it enabled could unintentionally affect subsequence >>>> test cases by keeping offload active. >>> Would you please show which subsequence test will be affected? >> Any general ipsec case, which expects to be tested by default >> behavior(without offload). >> esp4_offload will affect the performance. >> >>>> Fixes: 2766a11161cc ("selftests: rtnetlink: add ipsec offload API test") >>> It would be good to Cc the fix commit author. You can use >>> `./scripts/get_maintainer.pl your_patch_file` to get the contacts you >>> need to Cc. >> I used the script to generate the cc list. >> and I double checked the old email of the author is invalid >> added his personal email in the cc list: >> >> Shannon Nelson<shannon.nelson(a)oracle.com>. -----> Shannon Nelson >> <sln(a)onemain.com> >> >> get the information from here: >> https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=a… > > Yep, that was me a couple of corporate email addresses ago. Thanks for > digging up the new email address. Luckily I have a couple of mail > filters watching for old email addresses. > >>>> Signed-off-by: Xiumei Mu<xmu(a)redhat.com> >>>> --- >>>> tools/testing/selftests/net/rtnetlink.sh | 6 ++++++ >>>> 1 file changed, 6 insertions(+) >>>> >>>> diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh >>>> index 2e8243a65b50..5cc1b5340a1a 100755 >>>> --- a/tools/testing/selftests/net/rtnetlink.sh >>>> +++ b/tools/testing/selftests/net/rtnetlink.sh >>>> @@ -673,6 +673,11 @@ kci_test_ipsec_offload() >>>> sysfsf=$sysfsd/ipsec >>>> sysfsnet=/sys/bus/netdevsim/devices/netdevsim0/net/ >>>> probed=false >>>> + esp4_offload_probed_default=false >>>> + >>>> + if lsmod | grep -q esp4_offload; then >>>> + esp4_offload_probed_default=true >>>> + fi >>> If the mode is loaded by default, how to avoid the subsequence test to be >>> failed? >> The module is not loaded by default, but some users or testers may >> need to load esp4_offload in their own environments. >> Therefore, resetting it to the default configuration is the best >> practice to prevent this self-test case from impacting subsequent >> tests > > Seems reasonable to me. > >>>> if ! mount | grep -q debugfs; then >>>> mount -t debugfs none /sys/kernel/debug/ &> /dev/null >>>> @@ -766,6 +771,7 @@ EOF >>>> fi >>>> >>>> # clean up any leftovers >>>> + [ $esp4_offload_probed_default == false ] && rmmod esp4_offload >>> The new patch need to pass shellcheck. We need to double quote the variable. >> Thanks your comment, I will add double quote in patchv2 > > Or you keep with the existing style as done a line or two later: > $esp4_offload_probed_default && rmmod esp4_offload Either way, > Reviewed-by: Shannon Nelson <sln(a)onemain.com> Cheers, sln >>> Thanks >>> Hangbin >>>> echo 0 > /sys/bus/netdevsim/del_device >>>> $probed && rmmod netdevsim >>>> >>>> -- >>>> 2.50.1 >>>> >

2 months, 2 weeks

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[PATCH bpf-next v3 0/4] bpf: Show precise rejected function when attaching to __noreturn and deny list functions

by KaFai Wan

Show precise rejected function when attaching fexit/fmod_ret to __noreturn functions. Add log for attaching tracing programs to functions in deny list. Add selftest for attaching tracing programs to functions in deny list. Migrate fexit_noreturns case into tracing_failure test suite. changes: v3: - add tracing_deny case into existing files (Alexei) - migrate fexit_noreturns into tracing_failure - change SOB v2: - change verifier log message (Alexei) - add missing Suggested-by https://lore.kernel.org/bpf/20250714120408.1627128-1-mannkafai@gmail.com/ v1: https://lore.kernel.org/all/20250710162717.3808020-1-mannkafai@gmail.com/ --- KaFai Wan (4): bpf: Show precise rejected function when attaching fexit/fmod_ret to __noreturn functions bpf: Add log for attaching tracing programs to functions in deny list selftests/bpf: Add selftest for attaching tracing programs to functions in deny list selftests/bpf: Migrate fexit_noreturns case into tracing_failure test suite kernel/bpf/verifier.c | 5 +- .../bpf/prog_tests/fexit_noreturns.c | 9 ---- .../bpf/prog_tests/tracing_failure.c | 52 +++++++++++++++++++ .../selftests/bpf/progs/fexit_noreturns.c | 15 ------ .../selftests/bpf/progs/tracing_failure.c | 12 +++++ 5 files changed, 68 insertions(+), 25 deletions(-) delete mode 100644 tools/testing/selftests/bpf/prog_tests/fexit_noreturns.c delete mode 100644 tools/testing/selftests/bpf/progs/fexit_noreturns.c -- 2.43.0

2 months, 2 weeks

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[PATCH net-next V6 0/5] selftests: drv-net: Test XDP native support

by Mohsin Bashir

This patch series add tests to validate XDP native support for PASS, DROP, ABORT, and TX actions, as well as headroom and tailroom adjustment. For adjustment tests, validate support for both the extension and shrinking cases across various packet sizes and offset values. The pass criteria for head/tail adjustment tests require that at-least one adjustment value works for at-least one packet size. This ensure that the variability in maximum supported head/tail adjustment offset across different drivers is being incorporated. The results reported in this series are based on netdevsim. However, the series is tested against multiple other drivers including fbnic. Note: The XDP support for fbnic will be added later. --- Change-log: - Force checksum computation in netdevsim xdp hook - Update checksum when updating packet for head/tail adjustment cases - Use 1 as the minimum value for the data growth while adjusting tail V5: https://lore.kernel.org/netdev/20250715210553.1568963-6-mohsin.bashr@gmail.… V4: https://lore.kernel.org/netdev/20250714210352.1115230-1-mohsin.bashr@gmail.… V3: https://lore.kernel.org/netdev/20250712002648.2385849-1-mohsin.bashr@gmail.… V2: https://lore.kernel.org/netdev/20250710184351.63797-1-mohsin.bashr@gmail.com V1: https://lore.kernel.org/netdev/20250709173707.3177206-1-mohsin.bashr@gmail.… Jakub Kicinski (1): net: netdevsim: hook in XDP handling Mohsin Bashir (4): selftests: drv-net: Test XDP_PASS/DROP support selftests: drv-net: Test XDP_TX support selftests: drv-net: Test tail-adjustment support selftests: drv-net: Test head-adjustment support drivers/net/netdevsim/netdev.c | 21 +- tools/testing/selftests/drivers/net/Makefile | 1 + tools/testing/selftests/drivers/net/xdp.py | 656 ++++++++++++++++++ .../selftests/net/lib/xdp_native.bpf.c | 621 +++++++++++++++++ 4 files changed, 1298 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/drivers/net/xdp.py create mode 100644 tools/testing/selftests/net/lib/xdp_native.bpf.c -- 2.47.1

2 months, 2 weeks

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Linux-kselftest-mirror July 2025