Commit-ID: ad0dd7aed5df8009b3ffa39bec73ad93283332c9
Gitweb: http://git.kernel.org/tip/ad0dd7aed5df8009b3ffa39bec73ad93283332c9
Author: Wang Nan <wangnan0@xxxxxxxxxx>
AuthorDate: Tue, 17 Nov 2015 08:32:46 +0000
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 18 Nov 2015 17:51:04 -0300
perf test: Fix 'perf test BPF' when it fails to find a suitable vmlinux
Two bugs in 'perf test BPF' are found when testing BPF prologue without
vmlinux:
# mv /lib/modules/4.3.0-rc4+/build/vmlinux{,.bak}
# ./perf test BPF
37: Test BPF filter :Failed to find the path for kernel: No such file or directory
Ok
Test BPF should fail in this case.
After this patch:
# ./perf test BPF
37: Test BPF filter :Failed to find the path for kernel: No such file or directory
FAILED!
# mv /lib/modules/4.3.0-rc4+/build/vmlinux{.bak,}
# ./perf test BPF
37: Test BPF filter : Ok
Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>
Cc: Alexei Starovoitov <ast@xxxxxxxxxx>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Cc: Zefan Li <lizefan@xxxxxxxxxx>
Cc: pi3orama@xxxxxxx
Link: http://lkml.kernel.org/r/1447749170-175898-2-git-send-email-wangnan0@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/tests/bpf.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
index d584422..232043c 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -102,8 +102,7 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
err = parse_events_load_bpf_obj(&parse_evlist, &parse_evlist.list, obj);
if (err || list_empty(&parse_evlist.list)) {
pr_debug("Failed to add events selected by BPF\n");
- if (!err)
- return TEST_FAIL;
+ return TEST_FAIL;
}
snprintf(pid, sizeof(pid), "%d", getpid());
@@ -157,8 +156,10 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
}
}
- if (count != expect)
+ if (count != expect) {
pr_debug("BPF filter result incorrect\n");
+ goto out_delete_evlist;
+ }
ret = TEST_OK;
--
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