WARNING: line length of 89 exceeds 80 columns
#57: FILE: include/linux/bpf.h:1855:
+static inline int bpf_struct_ops_supported(const struct bpf_struct_ops *st_ops, u32 moff)

CHECK: Please use a blank line after function/struct/union/enum declarations
#57: FILE: include/linux/bpf.h:1855:
 }
+static inline int bpf_struct_ops_supported(const struct bpf_struct_ops *st_ops, u32 moff)

WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
#59: FILE: include/linux/bpf.h:1857:
+	return -ENOTSUPP;

WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
#76: FILE: kernel/bpf/bpf_struct_ops.c:1047:
+	return func_ptr ? 0 : -ENOTSUPP;

WARNING: line length of 87 exceeds 80 columns
#98: FILE: kernel/bpf/verifier.c:21183:
+	err = bpf_struct_ops_supported(st_ops, __btf_member_bit_offset(t, member) / 8);

total: 0 errors, 4 warnings, 1 checks, 103 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 3ff1ecd666d4 ("bpf: Check unsupported ops from the bpf_struct_ops's cfi_stubs") 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, 103 lines checked