CHECK: extern prototypes should be avoided in .h files
#55: FILE: tools/testing/selftests/bpf/bpf_kfuncs.h:82:
+extern bool bpf_session_is_return(void *ctx) __ksym __weak;

CHECK: extern prototypes should be avoided in .h files
#56: FILE: tools/testing/selftests/bpf/bpf_kfuncs.h:83:
+extern __u64 *bpf_session_cookie(void *ctx) __ksym __weak;

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, 2 checks, 138 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 73809788da83 ("bpf: change prototype of bpf_session_{cookie,is_return}") 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, 2 checks, 138 lines checked