CHECK: Alignment should match open parenthesis
#25: FILE: tools/testing/selftests/bpf/cgroup_helpers.c:130:
+static ssize_t __read_cgroup_file(const char *cgroup_path, const char *file,
+				 char *buf, size_t size)

CHECK: Alignment should match open parenthesis
#89: FILE: tools/testing/selftests/bpf/cgroup_helpers.h:16:
+ssize_t read_cgroup_file(const char *relative_path, const char *file,
+			char *buf, size_t size);

total: 0 errors, 0 warnings, 2 checks, 66 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 04a91badf358 ("bpf: selftests: introduce read_cgroup_file() helper") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 0 warnings, 2 checks, 66 lines checked