lwn.git/tools/testing/selftests/bpf/prog_tests/kernel_flag.c, branch master

selftests/bpf: More open-coded gettid syscall cleanup

2025-09-15T18:39:24+00:00

Commit 0e2fb011a0ba ("selftests/bpf: Clean up open-coded gettid syscall invocations") addressed the issue that older libc may not have a gettid() function call wrapper for the associated syscall. A few more instances have crept into tests, use sys_gettid() instead, and poison raw gettid() usage to avoid future issues. Signed-off-by: Alan Maguire Signed-off-by: Daniel Borkmann Acked-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20250911163056.543071-1-alan.maguire@oracle.com

selftests/bpf: Add a kernel flag test for LSM bpf hook

2025-03-15T18:48:58+00:00

This test exercises the kernel flag added to security_bpf by effectively blocking light-skeletons from loading while allowing normal skeletons to function as-is. Since this should work with any arbitrary BPF program, an existing program from LSKELS_EXTRA was used as a test payload. Signed-off-by: Blaise Boscaccy Acked-by: Song Liu Link: https://lore.kernel.org/r/20250310221737.821889-3-bboscaccy@linux.microsoft.com Signed-off-by: Alexei Starovoitov