[PATCH v1] selftests: cgroup: Fixes code style errors

Atul Kumar Pant
2023-11-06T18:11:55Z

Fixes following checkpatch.pl issues:
ERROR: do not use assignment in if condition
ERROR: Macros starting with if should be enclosed by a do - while

Signed-off-by: Atul Kumar Pant <atulpant.linux@gmail.com>
---
tools/testing/selftests/cgroup/cgroup_util.c | 14 ++++++++------
tools/testing/selftests/cgroup/test_core.c | 3 ++-
2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index 0340d4ca8f51..e165c4a703a6 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -411,12 +411,14 @@ int dirfd_open_opath(const char *dir)
return open(dir, O_DIRECTORY | O_CLOEXEC | O_NOFOLLOW | O_PATH);
}

-#define close_prot_errno(fd) \
- if (fd >= 0) { \
- int _e_ = errno; \
- close(fd); \
- errno = _e_; \
- }
+#define close_prot_errno(fd) \
+ do { \
+ if (fd >= 0) { \
+ int _e_ = errno; \
+ close(fd); \
+ errno = _e_; \
+ } \
+ } while (0);

static int clone_into_cgroup_run_nowait(const char *cgroup,
int (*fn)(const char *cgroup, void *arg),
diff --git a/tools/testing/selftests/cgroup/test_core.c b/tools/testing/selftests/cgroup/test_core.c
index 80aa6b2373b9..ad758e510174 100644
--- a/tools/testing/selftests/cgroup/test_core.c
+++ b/tools/testing/selftests/cgroup/test_core.c
@@ -817,7 +817,8 @@ static int test_cgcore_lesser_ns_open(const char *root)
if (cg_enter_current(cg_test_a))
goto cleanup;

- if ((status = write(cg_test_b_procs_fd, "0", 1)) >= 0 || errno != ENOENT)
+ status = write(cg_test_b_procs_fd, "0", 1);
+ if (status >= 0 || errno != ENOENT)
goto cleanup;

ret = KSFT_PASS;
--
2.25.1