WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#38: 
new file mode 100644

CHECK: No space is necessary after a cast
#99: FILE: tools/testing/selftests/bpf/prog_tests/trace_bench.c:57:
+	opts.syms = (const char **) syms;

WARNING: line length of 83 exceeds 80 columns
#102: FILE: tools/testing/selftests/bpf/prog_tests/trace_bench.c:60:
+	link = bpf_program__attach_trace_multi_opts(skel->progs.fentry_multi_empty,

CHECK: No space is necessary after a cast
#152: FILE: tools/testing/selftests/bpf/prog_tests/trace_bench.c:110:
+		opts.syms = (const char **) syms;

CHECK: No space is necessary after a cast
#155: FILE: tools/testing/selftests/bpf/prog_tests/trace_bench.c:113:
+		opts.syms = (const char **) &test_func;

WARNING: line length of 83 exceeds 80 columns
#158: FILE: tools/testing/selftests/bpf/prog_tests/trace_bench.c:116:
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_empty,

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, 4 warnings, 3 checks, 211 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 2756afca6c1d ("selftests/bpf: add performance bench test for trace prog") 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, 4 warnings, 3 checks, 211 lines checked