290 	const struct btf_type *func_proto;  member
2621 	const struct btf_type *func, *func_proto;  in add_kfunc_call()  local
2698 	func_proto = btf_type_by_id(desc_btf, func->type);  in add_kfunc_call()
2699 	if (!func_proto || !btf_type_is_func_proto(func_proto)) {  in add_kfunc_call()
2738 				     func_proto, func_name,  in add_kfunc_call()
7472 	arg = &btf_params(meta->func_proto)[0];  in process_iter_arg()
10845 	args = (const struct btf_param *)(meta->func_proto + 1);  in check_kfunc_args()
10846 	nargs = btf_type_vlen(meta->func_proto);  in check_kfunc_args()
11246 	const struct btf_type *func, *func_proto;  in fetch_kfunc_meta()  local
11266 	func_proto = btf_type_by_id(desc_btf, func->type);  in fetch_kfunc_meta()
11277 	meta->func_proto = func_proto;  in fetch_kfunc_meta()
11408 	t = btf_type_skip_modifiers(desc_btf, meta.func_proto->type, NULL);  in check_kfunc_call()
11606 	nargs = btf_type_vlen(meta.func_proto);  in check_kfunc_call()
11607 	args = (const struct btf_param *)(meta.func_proto + 1);  in check_kfunc_call()
14978 	const struct btf_type *type, *func_proto, *ret_type;  in check_btf_func()  local
15074 		func_proto = btf_type_by_id(btf, type->type);  in check_btf_func()
15075 		if (unlikely(!func_proto || !btf_type_is_func_proto(func_proto)))  in check_btf_func()
15078 		ret_type = btf_type_skip_modifiers(btf, func_proto->type, NULL);  in check_btf_func()
19179 	const struct btf_type *t, *func_proto;  in check_struct_ops_btf_id()  local
19209 	func_proto = btf_type_resolve_func_ptr(btf_vmlinux, member->type,  in check_struct_ops_btf_id()
19211 	if (!func_proto) {  in check_struct_ops_btf_id()
19227 	prog->aux->attach_func_proto = func_proto;  in check_struct_ops_btf_id()