6.12-stable review patch. If anyone has any objections, please let me know.
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From: Jason Xing kernelxing@tencent.com
commit 42602e3a06f8e5b9a059344e305c9bee2dcc87c8 upstream.
As we can see from the title, when I compiled the selftests/bpf, I saw the error: implicit declaration of function ‘gettid’ ; did you mean ‘getgid’? [-Werror=implicit-function-declaration] skel->bss->tid = gettid(); ^~~~~~ getgid
Directly call the syscall solves this issue.
Signed-off-by: Jason Xing kernelxing@tencent.com Reviewed-by: Alan Maguire alan.maguire@oracle.com Tested-by: Alan Maguire alan.maguire@oracle.com Link: https://lore.kernel.org/r/20241029074627.80289-1-kerneljasonxing@gmail.com Signed-off-by: Martin KaFai Lau martin.lau@kernel.org Cc: Alan Maguire alan.maguire@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/bpf/prog_tests/bpf_iter.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c @@ -226,7 +226,7 @@ static void test_task_common_nocheck(str ASSERT_OK(pthread_create(&thread_id, NULL, &do_nothing_wait, NULL), "pthread_create");
- skel->bss->tid = gettid(); + skel->bss->tid = syscall(SYS_gettid);
do_dummy_read_opts(skel->progs.dump_task, opts);
@@ -255,10 +255,10 @@ static void *run_test_task_tid(void *arg union bpf_iter_link_info linfo; int num_unknown_tid, num_known_tid;
- ASSERT_NEQ(getpid(), gettid(), "check_new_thread_id"); + ASSERT_NEQ(getpid(), syscall(SYS_gettid), "check_new_thread_id");
memset(&linfo, 0, sizeof(linfo)); - linfo.task.tid = gettid(); + linfo.task.tid = syscall(SYS_gettid); opts.link_info = &linfo; opts.link_info_len = sizeof(linfo); test_task_common(&opts, 0, 1);