WARNING: line length of 82 exceeds 80 columns
#28: FILE: include/linux/btf.h:583:
+int btf_check_iter_arg(struct btf *btf, const struct btf_type *func, int arg_idx);

WARNING: line length of 95 exceeds 80 columns
#36: FILE: include/linux/btf.h:658:
+static inline int btf_check_iter_arg(struct btf *btf, const struct btf_type *func, int arg_idx)

CHECK: Please use a blank line after function/struct/union/enum declarations
#36: FILE: include/linux/btf.h:658:
 }
+static inline int btf_check_iter_arg(struct btf *btf, const struct btf_type *func, int arg_idx)

WARNING: line length of 81 exceeds 80 columns
#55: FILE: kernel/bpf/btf.c:8059:
+int btf_check_iter_arg(struct btf *btf, const struct btf_type *func, int arg_idx)

WARNING: line length of 83 exceeds 80 columns
#124: FILE: kernel/bpf/btf.c:8117:
+	iter_name = btf_name_by_offset(btf, t->name_off) + sizeof(ITER_PREFIX) - 1;

total: 0 errors, 4 warnings, 1 checks, 96 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 e0dd52905684 ("bpf: extract iterator argument type and name validation logic") 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, 1 checks, 96 lines checked