WARNING: line length of 84 exceeds 80 columns
#147: FILE: tools/testing/selftests/bpf/progs/read_vsyscall.c:51:
+	read_ret[2] = bpf_copy_from_user_str((char *)buf, sizeof(buf), user_ptr, 0);

total: 0 errors, 1 warnings, 0 checks, 118 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 da5e4400e753 ("selftests/bpf: Split read_vsyscall into subtests") 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, 1 warnings, 0 checks, 118 lines checked