WARNING: line length of 85 exceeds 80 columns
#55: FILE: kernel/trace/bpf_trace.c:3636:
+	seq_printf(seq, "%s\t %s\t %s\t %s\n", "obj-id", "btf-id", "cookie", "func");

WARNING: line length of 84 exceeds 80 columns
#60: FILE: kernel/trace/bpf_trace.c:3641:
+		bpf_trampoline_unpack_key(mnode->trampoline->key, &obj_id, &btf_id);

CHECK: No space is necessary after a cast
#64: FILE: kernel/trace/bpf_trace.c:3645:
+			   (void *) mnode->trampoline->ip);

total: 0 errors, 2 warnings, 1 checks, 39 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 1f004763321e ("bpf: Add support for tracing_multi link fdinfo") 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, 2 warnings, 1 checks, 39 lines checked