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bpf: minor fix to selftest test_stacktrace_build_id() 

1. remove useless parameter list to ./urandom_read
2. add missing "\n" to the end of an error message

Fixes: 81f77fd0de ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Song Liu 2018-05-01 10:20:24 -07:00 committed by Daniel Borkmann
parent 815425567d
commit a4e21ff8d9
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/bpf/test_progs.c
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@ -1108,7 +1108,7 @@ static void test_stacktrace_build_id(void)
assert(system("dd if=/dev/urandom of=/dev/zero count=4 2> /dev/null")
== 0);
assert(system("./urandom_read if=/dev/urandom of=/dev/zero count=4 2> /dev/null") == 0);
assert(system("./urandom_read") == 0);
/* disable stack trace collection */
key = 0;
val = 1;
@ -1158,7 +1158,7 @@ static void test_stacktrace_build_id(void)
} while (bpf_map_get_next_key(stackmap_fd, &previous_key, &key) == 0);
CHECK(build_id_matches < 1, "build id match",
"Didn't find expected build ID from the map");
"Didn't find expected build ID from the map\n");
disable_pmu:
ioctl(pmu_fd, PERF_EVENT_IOC_DISABLE);