WARNING: line length of 81 exceeds 80 columns
#209: FILE: scripts/gen-btf.sh:104:
+	# Create ${btf_data} which contains just .BTF section but no symbols. Add

WARNING: line length of 86 exceeds 80 columns
#226: FILE: scripts/gen-btf.sh:121:
+	printf "${et_rel}" | dd of="${btf_data}" conv=notrunc bs=1 seek=16 status=none

WARNING: line length of 84 exceeds 80 columns
#240: FILE: scripts/gen-btf.sh:135:
+		${OBJCOPY} --update-section .BTF_ids=${ELF_FILE}.btf_ids ${ELF_FILE}

WARNING: line length of 84 exceeds 80 columns
#389: FILE: tools/bpf/resolve_btfids/main.c:570:
+			pr_err("FAILED to distill base BTF: %s\n", strerror(errno));

CHECK: Comparison to NULL could be written "!raw_btf_data"
#473: FILE: tools/bpf/resolve_btfids/main.c:848:
+	if (raw_btf_data == NULL) {

total: 0 errors, 4 warnings, 1 checks, 450 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 ffe23629d53d ("resolve_btfids: change in-place update with raw binary output") 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, 1 checks, 450 lines checked