WARNING: line length of 89 exceeds 80 columns
#74: FILE: arch/x86/net/bpf_jit_comp.c:3385:
+		save_args(m, &prog, arg_stack_off, true, bpf_trampoline_need_jmp(flags));

WARNING: line length of 82 exceeds 80 columns
#89: FILE: include/linux/bpf.h:1270:
+	return flags & BPF_TRAMP_F_CALL_ORIG && !(flags & BPF_TRAMP_F_SKIP_FRAME);

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, 0 checks, 63 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 c191858491d9 ("bpf,x86: adjust the "jmp" mode for bpf trampoline") 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, 0 checks, 63 lines checked