WARNING: line length of 86 exceeds 80 columns
#71: FILE: kernel/bpf/helpers.c:2455:
+	struct bpf_list_node_kern *n = (void *)new, *p = (void *)prev__nonown_allowed;

WARNING: line length of 91 exceeds 80 columns
#83: FILE: kernel/bpf/verifier.c:12305:
+static bool is_kfunc_arg_nonown_allowed(const struct btf *btf, const struct btf_param *arg)

WARNING: line length of 84 exceeds 80 columns
#96: FILE: kernel/bpf/verifier.c:13782:
+			    type_is_non_owning_ref(reg->type) && !reg->ref_obj_id) {

total: 0 errors, 3 warnings, 0 checks, 69 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 e40e8e03cc3c ("bpf: allow bpf_list_front/back result as the prev argument of bpf_list_add_impl") 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, 69 lines checked