WARNING: line length of 81 exceeds 80 columns
#128: FILE: tools/testing/selftests/net/msg_zerocopy.c:823:
+			cfg_waittime_ms = 200 + strtoul(optarg, NULL, 10) * 1000;

total: 0 errors, 1 warnings, 0 checks, 126 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 06bd0b06b67d ("selftests: Add sendfile zerocopy notification test") 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, 126 lines checked