WARNING: line length of 93 exceeds 80 columns
#80: FILE: kernel/bpf/verifier.c:13232:
+				if (!type_is_non_owning_ref(reg->type) && !reg->ref_obj_id) {

WARNING: line length of 131 exceeds 80 columns
#81: FILE: kernel/bpf/verifier.c:13233:
+					verbose(env, "%s can only take non-owning or refcounted bpf_rb_node pointer\n", func_name);

WARNING: line length of 95 exceeds 80 columns
#139: FILE: tools/testing/selftests/bpf/progs/rbtree_fail.c:182:
+__failure __msg("bpf_rbtree_remove can only take non-owning or refcounted bpf_rb_node pointer")

WARNING: line length of 95 exceeds 80 columns
#148: FILE: tools/testing/selftests/bpf/progs/rbtree_fail.c:206:
+__failure __msg("bpf_rbtree_remove can only take non-owning or refcounted bpf_rb_node pointer")

total: 0 errors, 4 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 b70632dcaa86 ("bpf: Allow refcounted bpf_rb_node used in bpf_rbtree_{remove,left,right}") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE 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, 69 lines checked