WARNING: Prefer __printf(a, b) over __attribute__((format(printf, a, b)))
#33: FILE: tools/testing/selftests/bpf/veristat.c:244:
+#define __printf(a, b)	__attribute__((format(printf, a, b)))

WARNING: Prefer __scanf(a, b) over __attribute__((format(scanf, a, b)))
#37: FILE: tools/testing/selftests/bpf/veristat.c:248:
+#define __scanf(a, b)	__attribute__((format(scanf, a, b)))

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 e9d9ecc78472 ("selftests/bpf: allow veristat compile standalone") 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