WARNING: line length of 82 exceeds 80 columns
#34: FILE: kernel/bpf/trampoline.c:178:
+static int bpf_trampoline_update_fentry(struct bpf_trampoline *tr, u32 orig_flags,

WARNING: line length of 83 exceeds 80 columns
#63: FILE: kernel/bpf/trampoline.c:205:
+		ret = bpf_trampoline_update_fentry(tr, orig_flags, old_addr, NULL);

WARNING: line length of 85 exceeds 80 columns
#121: FILE: kernel/bpf/trampoline.c:463:
+			tr->flags |= BPF_TRAMP_F_ORIG_STACK | 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, 4 warnings, 0 checks, 134 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 86e993ca6b5f ("bpf: implement "jmp" mode for 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, 4 warnings, 0 checks, 134 lines checked