diff options
| author | Hou Tao <houtao1@huawei.com> | 2021-10-04 17:48:57 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2021-10-08 13:22:57 -0700 |
| commit | fa7f17d066bd0996b930b664aa0ed1f213fc1828 (patch) | |
| tree | e2abd0f4d04594fc4204db299cb5b74be0d222f8 /tools/testing/selftests/bpf/test_progs.c | |
| parent | ccaf12d6215a56836472db220520cda8024d6c4f (diff) | |
| download | lwn-fa7f17d066bd0996b930b664aa0ed1f213fc1828.tar.gz lwn-fa7f17d066bd0996b930b664aa0ed1f213fc1828.zip | |
bpf/selftests: Add test for writable bare tracepoint
Add a writable bare tracepoint in bpf_testmod module, and
trigger its calling when reading /sys/kernel/bpf_testmod
with a specific buffer length. The reading will return
the value in writable context if the early return flag
is enabled in writable context.
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211004094857.30868-4-hotforest@gmail.com
Diffstat (limited to 'tools/testing/selftests/bpf/test_progs.c')
| -rw-r--r-- | tools/testing/selftests/bpf/test_progs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index 2ed01f615d20..007b4ff85fea 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -747,7 +747,7 @@ int trigger_module_test_read(int read_sz) { int fd, err; - fd = open("/sys/kernel/bpf_testmod", O_RDONLY); + fd = open(BPF_TESTMOD_TEST_FILE, O_RDONLY); err = -errno; if (!ASSERT_GE(fd, 0, "testmod_file_open")) return err; @@ -769,7 +769,7 @@ int trigger_module_test_write(int write_sz) memset(buf, 'a', write_sz); buf[write_sz-1] = '\0'; - fd = open("/sys/kernel/bpf_testmod", O_WRONLY); + fd = open(BPF_TESTMOD_TEST_FILE, O_WRONLY); err = -errno; if (!ASSERT_GE(fd, 0, "testmod_file_open")) { free(buf); |