summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorFeng Yang <yangfeng@kylinos.cn>2025-09-08 14:08:10 +0800
committerMartin KaFai Lau <martin.lau@kernel.org>2025-09-08 09:51:13 -0700
commit93a83d044314b041ffe2bb1d43b8b0cea7f60921 (patch)
tree17eec3cec729a6a0748d604a42b7157ad67f2a5a
parente12873ee856ffa6f104869b8ea10c0f741606f13 (diff)
selftests/bpf: Fix the issue where the error code is 0
The error message printed here only uses the previous err value, which results in it being printed as 0. When bpf_map__attach_struct_ops encounters an error, it uses libbpf_err_ptr(err) to set errno = -err and returns NULL. Therefore, Using -errno can fix this issue. Fix before: run_subtest:FAIL:1019 bpf_map__attach_struct_ops failed for map pro_epilogue: err=0 Fix after: run_subtest:FAIL:1019 bpf_map__attach_struct_ops failed for map pro_epilogue: err=-9 Signed-off-by: Feng Yang <yangfeng@kylinos.cn> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20250908060810.1054341-1-yangfeng59949@163.com
-rw-r--r--tools/testing/selftests/bpf/test_loader.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/test_loader.c b/tools/testing/selftests/bpf/test_loader.c
index a9388ac88358..9f684d0dc5b4 100644
--- a/tools/testing/selftests/bpf/test_loader.c
+++ b/tools/testing/selftests/bpf/test_loader.c
@@ -1088,7 +1088,7 @@ void run_subtest(struct test_loader *tester,
link = bpf_map__attach_struct_ops(map);
if (!link) {
PRINT_FAIL("bpf_map__attach_struct_ops failed for map %s: err=%d\n",
- bpf_map__name(map), err);
+ bpf_map__name(map), -errno);
goto tobj_cleanup;
}
links[links_cnt++] = link;