WARNING: line length of 84 exceeds 80 columns
#139: FILE: tools/testing/selftests/net/cmsg_sender.c:554:
+				fprintf(stderr, "send more: %s\n", strerror(errno));

total: 0 errors, 1 warnings, 0 checks, 105 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 f6a69687cf86 ("selftests/net: expand cmsg_ip with MSG_MORE") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE 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, 1 warnings, 0 checks, 105 lines checked