WARNING: line length of 81 exceeds 80 columns
#109: FILE: tools/lib/bpf/libbpf.c:10696:
+	err = validate_map_op(map, key_sz, 0, false /* check_value_sz */, flags);

total: 0 errors, 1 warnings, 0 checks, 115 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 edc772230401 ("libbpf: Add BPF_F_CPU and BPF_F_ALL_CPUS flags support for percpu maps") 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, 1 warnings, 0 checks, 115 lines checked