| Message ID | 20220408041452.933944-1-ytcoode@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 658d87687cd5a6c8762d1de8abee1e6792d8d71e |
| Headers | show |
| Series | [bpf-next,v2] selftests/bpf: Fix return value checks in perf_event_stackmap.c | expand |
Hello: This patch was applied to bpf/bpf-next.git (master) by Daniel Borkmann <daniel@iogearbox.net>: On Fri, 8 Apr 2022 12:14:52 +0800 you wrote: > The bpf_get_stackid() function may also return 0 on success. > > Correct checks from 'val > 0' to 'val >= 0' to ensure that they cover all > possible success return values. > > Signed-off-by: Yuntao Wang <ytcoode@gmail.com> > > [...] Here is the summary with links: - [bpf-next,v2] selftests/bpf: Fix return value checks in perf_event_stackmap.c https://git.kernel.org/bpf/bpf-next/c/658d87687cd5 You are awesome, thank you!
diff --git a/tools/testing/selftests/bpf/progs/perf_event_stackmap.c b/tools/testing/selftests/bpf/progs/perf_event_stackmap.c index b3fcb5274ee0..f793280a3238 100644 --- a/tools/testing/selftests/bpf/progs/perf_event_stackmap.c +++ b/tools/testing/selftests/bpf/progs/perf_event_stackmap.c @@ -35,10 +35,10 @@ int oncpu(void *ctx) long val; val = bpf_get_stackid(ctx, &stackmap, 0); - if (val > 0) + if (val >= 0) stackid_kernel = 2; val = bpf_get_stackid(ctx, &stackmap, BPF_F_USER_STACK); - if (val > 0) + if (val >= 0) stackid_user = 2; trace = bpf_map_lookup_elem(&stackdata_map, &key);
The bpf_get_stackid() function may also return 0 on success. Correct checks from 'val > 0' to 'val >= 0' to ensure that they cover all possible success return values. Signed-off-by: Yuntao Wang <ytcoode@gmail.com> --- v1 -> v2: update commit message tools/testing/selftests/bpf/progs/perf_event_stackmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)