WARNING: line length of 84 exceeds 80 columns
#47: FILE: tools/lib/bpf/linker.c:241:
+	linker->fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, 0644);

WARNING: line length of 83 exceeds 80 columns
#100: FILE: tools/lib/bpf/linker.c:452:
+		pr_warn("failed to open file '%s': %s\n", filename, errstr(errno));

WARNING: line length of 81 exceeds 80 columns
#165: FILE: tools/lib/bpf/linker.c:593:
+		pr_warn("byte order mismatch with ELF file %s\n", obj->filename);

WARNING: line length of 90 exceeds 80 columns
#180: FILE: tools/lib/bpf/linker.c:606:
+		pr_warn_elf("failed to get SHSTRTAB section index for %s", obj->filename);

total: 0 errors, 4 warnings, 0 checks, 199 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 ae453787e1e8 ("libbpf: Pull file-opening logic up to top-level functions") 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, 199 lines checked