WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#35: 
new file mode 100644

WARNING: Improper SPDX comment style for 'tools/testing/selftests/bpf/io_helpers.h', please use '/*' instead
#67: FILE: tools/testing/selftests/bpf/io_helpers.h:1:
+// SPDX-License-Identifier: GPL-2.0

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
#67: FILE: tools/testing/selftests/bpf/io_helpers.h:1:
+// SPDX-License-Identifier: GPL-2.0

total: 0 errors, 3 warnings, 0 checks, 35 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 b944cd3c5d6f ("selftests/bpf: add read_with_timeout() utility function") 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, 3 warnings, 0 checks, 35 lines checked