WARNING: const array should probably be static const
#112: FILE: tools/testing/selftests/drivers/net/xdp_helper.c:20:
+	const char msg[7] = "ready\n";

total: 0 errors, 1 warnings, 0 checks, 194 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 05eb762a6998 ("selftests: drv-net: add a way to wait for a local process") 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, 194 lines checked