WARNING: Missing a blank line after declarations
#100: FILE: tools/testing/selftests/bpf/prog_tests/fsession_test.c:78:
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);

WARNING: line length of 83 exceeds 80 columns
#255: FILE: tools/testing/selftests/bpf/progs/fsession_test.c:91:
+		test4_entry_result = a == (void *)7 && b == 8 && c == 9 && d == 10;

WARNING: line length of 88 exceeds 80 columns
#303: FILE: tools/testing/selftests/bpf/progs/fsession_test.c:139:
+		test6_entry_result = a == 11 && b == (void *)12 && c == 13 && d == 14 &&

WARNING: line length of 88 exceeds 80 columns
#331: FILE: tools/testing/selftests/bpf/progs/fsession_test.c:167:
+		test7_entry_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&

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, 5 warnings, 0 checks, 314 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 be291a099aad ("selftests/bpf: add testcases for tracing session") 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, 5 warnings, 0 checks, 314 lines checked