CHECK: No space is necessary after a cast
#86: FILE: tools/testing/selftests/bpf/progs/fsession_test.c:106:
+		test6_exit_result = (const void *) addr == &bpf_fentry_test1;

CHECK: No space is necessary after a cast
#88: FILE: tools/testing/selftests/bpf/progs/fsession_test.c:108:
+		test6_entry_result = (const void *) addr == &bpf_fentry_test1;

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#97: FILE: tools/testing/selftests/bpf/progs/fsession_test.c:117:
+	volatile __u64 *cookie = bpf_session_cookie(ctx);

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#115: FILE: tools/testing/selftests/bpf/progs/fsession_test.c:135:
+	volatile __u64 *cookie = bpf_session_cookie(ctx);

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, 3 warnings, 2 checks, 113 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 27a55bc8d852 ("selftests/bpf: add testcases for fsession cookie") 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, 3 warnings, 2 checks, 113 lines checked