1665 	const struct btf_type *func, *func_proto;  in add_kfunc_call()  local
1716 	func_proto = btf_type_by_id(btf_vmlinux, func->type);  in add_kfunc_call()
1717 	if (!func_proto || !btf_type_is_func_proto(func_proto)) {  in add_kfunc_call()
1735 				     func_proto, func_name,  in add_kfunc_call()
6484 	const struct btf_type *t, *func, *func_proto, *ptr_type;  in check_kfunc_call()  local
6494 	func_proto = btf_type_by_id(btf_vmlinux, func->type);  in check_kfunc_call()
6512 	t = btf_type_skip_modifiers(btf_vmlinux, func_proto->type, NULL);  in check_kfunc_call()
6534 	nargs = btf_type_vlen(func_proto);  in check_kfunc_call()
6535 	args = (const struct btf_param *)(func_proto + 1);  in check_kfunc_call()
9757 	const struct btf_type *type, *func_proto, *ret_type;  in check_btf_func()  local
9853 		func_proto = btf_type_by_id(btf, type->type);  in check_btf_func()
9854 		if (unlikely(!func_proto || !btf_type_is_func_proto(func_proto)))  in check_btf_func()
9857 		ret_type = btf_type_skip_modifiers(btf, func_proto->type, NULL);  in check_btf_func()
13250 	const struct btf_type *t, *func_proto;  in check_struct_ops_btf_id()  local
13280 	func_proto = btf_type_resolve_func_ptr(btf_vmlinux, member->type,  in check_struct_ops_btf_id()
13282 	if (!func_proto) {  in check_struct_ops_btf_id()
13298 	prog->aux->attach_func_proto = func_proto;  in check_struct_ops_btf_id()