CHECK: Lines should not end with a '(' #52: FILE: tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c:90: + asm volatile ( WARNING: line length of 83 exceeds 80 columns #55: FILE: tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c:93: + : [rtt_min_off] "i"(offsetof(struct bpf_sock_ops, rtt_min)) WARNING: From:/Signed-off-by: email address mismatch: 'From: Werner Kasselman ' != 'Signed-off-by: Werner Kasselman ' total: 0 errors, 2 warnings, 1 checks, 43 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 6ab6e1e4b924 ("selftests/bpf: cover same-reg sock_ops rtt_min request_sock access") 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, 2 warnings, 1 checks, 43 lines checked