CHECK: No space is necessary after a cast
#57: FILE: tools/testing/selftests/bpf/progs/get_func_args_test.c:136:
+	test5_result &= err == 0 && ((int) a == 1);

CHECK: No space is necessary after a cast
#78: FILE: tools/testing/selftests/bpf/progs/get_func_args_test.c:157:
+	test6_result &= err == 0 && (int) a == 2;

CHECK: Alignment should match open parenthesis
#98: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod-events.h:67:
+DECLARE_TRACE(bpf_testmod_fentry_test1,
+	TP_PROTO(int a),

CHECK: Alignment should match open parenthesis
#103: FILE: tools/testing/selftests/bpf/test_kmods/bpf_testmod-events.h:72:
+DECLARE_TRACE(bpf_testmod_fentry_test2,
+	TP_PROTO(int a, u64 b),

WARNING: From:/Signed-off-by: email address mismatch: 'From: Menglong Dong <menglong8.dong@gmail.com>' != 'Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>'

total: 0 errors, 1 warnings, 4 checks, 92 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 d6df597566a2 ("selftests/bpf: test bpf_get_func_arg() for tp_btf") 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, 4 checks, 92 lines checked