CHECK: Alignment should match open parenthesis
#100: FILE: tools/bpf/resolve_btfids/main.c:795:
+static int update_elf(const char *path, const struct btf *btf,
+				  const char *btf_secname)

CHECK: Comparison to NULL could be written "!elf"
#123: FILE: tools/bpf/resolve_btfids/main.c:818:
+	if (elf == NULL) {

CHECK: Comparison to NULL could be written "!shdr"
#135: FILE: tools/bpf/resolve_btfids/main.c:830:
+		if (shdr == NULL)

WARNING: line length of 84 exceeds 80 columns
#191: FILE: tools/bpf/resolve_btfids/main.c:886:
+		pr_err("FAILED: load BTF from %s: %s\n", obj->path, strerror(-err));

CHECK: Alignment should match open parenthesis
#237: FILE: tools/bpf/resolve_btfids/main.c:932:
+			pr_err("FAILED to generate distilled base BTF: %s\n",
+				strerror(errno));

WARNING: line length of 86 exceeds 80 columns
#243: FILE: tools/bpf/resolve_btfids/main.c:938:
+			err = update_elf(obj->path, distilled_base, BTF_BASE_ELF_SEC);

WARNING: line length of 84 exceeds 80 columns
#245: FILE: tools/bpf/resolve_btfids/main.c:940:
+				pr_err("FAILED to update '%s'\n", BTF_BASE_ELF_SEC);

total: 0 errors, 3 warnings, 4 checks, 252 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 64de8e10bfc1 ("tools/resolve_btfids: Add --btf_sort option for BTF name sorting") 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, 4 checks, 252 lines checked