CHECK: No space is necessary after a cast
#29: FILE: tools/lib/bpf/bpf_helpers.h:142:
+	return (void *) error;

WARNING: line length of 97 exceeds 80 columns
#45: FILE: tools/lib/bpf/bpf_helpers.h:355:
+					(void)bpf_iter_##type##_destroy,			\

WARNING: line length of 97 exceeds 80 columns
#46: FILE: tools/lib/bpf/bpf_helpers.h:356:
+					ERR_PTR(bpf_iter_##type##_new(&___it, ##args)));	\

WARNING: line length of 97 exceeds 80 columns
#49: FILE: tools/lib/bpf/bpf_helpers.h:358:
+	((!___p) && ((cur) = bpf_iter_##type##_next(&___it)));					\

total: 0 errors, 3 warnings, 1 checks, 32 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 2f97217626b3 ("libbpf: Check the return value of bpf_iter_<type>_new()") 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, 3 warnings, 1 checks, 32 lines checked