WARNING: line length of 81 exceeds 80 columns
#43: FILE: tools/testing/selftests/bpf/progs/test_xdp_meta.c:52:
+static bool check_skb_metadata(const char *file, int line, struct __sk_buff *skb)

WARNING: line length of 88 exceeds 80 columns
#48: FILE: tools/testing/selftests/bpf/progs/test_xdp_meta.c:57:
+	return data_meta + META_SIZE <= data && (check_metadata)(file, line, data_meta);

total: 0 errors, 2 warnings, 0 checks, 65 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 a3e4e74fe8bd ("selftests/bpf: Cover skb metadata access after vlan push/pop 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, 2 warnings, 0 checks, 65 lines checked