WARNING: line length of 88 exceeds 80 columns
#53: FILE: tools/testing/selftests/bpf/progs/kfunc_implicit_args.c:9:
+extern int bpf_kfunc_implicit_arg_impl(int a, void *aux__prog) __weak __ksym; // illegal

WARNING: line length of 91 exceeds 80 columns
#55: FILE: tools/testing/selftests/bpf/progs/kfunc_implicit_args.c:11:
+extern int bpf_kfunc_implicit_arg_legacy_impl(int a, int b, void *aux__prog) __weak __ksym;

WARNING: externs should be avoided in .c files
#94: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1139:
+__bpf_kfunc int bpf_kfunc_implicit_arg(int a, struct bpf_prog_aux *aux);

WARNING: line length of 86 exceeds 80 columns
#95: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1140:
+__bpf_kfunc int bpf_kfunc_implicit_arg_legacy(int a, int b, struct bpf_prog_aux *aux);

WARNING: externs should be avoided in .c files
#95: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1140:
+__bpf_kfunc int bpf_kfunc_implicit_arg_legacy(int a, int b, struct bpf_prog_aux *aux);

WARNING: line length of 82 exceeds 80 columns
#96: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1141:
+__bpf_kfunc int bpf_kfunc_implicit_arg_legacy_impl(int a, int b, void *aux__prog);

WARNING: externs should be avoided in .c files
#96: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod.c:1141:
+__bpf_kfunc int bpf_kfunc_implicit_arg_legacy_impl(int a, int b, void *aux__prog);

total: 0 errors, 7 warnings, 0 checks, 95 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 3ee7266df8a2 ("selftests/bpf: Add tests for KF_IMPLICIT_ARGS") 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, 7 warnings, 0 checks, 95 lines checked