WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#36: FILE: tools/lib/bpf/libbpf.c:1532:
+static int sys_memfd_create(const char *name, unsigned flags)

WARNING: line length of 84 exceeds 80 columns
#46: FILE: tools/lib/bpf/libbpf.c:1541:
+	fd = ensure_good_fd(sys_memfd_create("libbpf-placeholder-fd", MFD_CLOEXEC));

total: 0 errors, 2 warnings, 0 checks, 21 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 086c5383a54e ("libbpf: call memfd_create() syscall directly") 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, 2 warnings, 0 checks, 21 lines checked