302 	const struct btf_type *func_proto;  member
3268 	const struct btf_type *func, *func_proto;  in add_kfunc_call()  local
3345 	func_proto = btf_type_by_id(desc_btf, func->type);  in add_kfunc_call()
3346 	if (!func_proto || !btf_type_is_func_proto(func_proto)) {  in add_kfunc_call()
3367 				     func_proto, func_name,  in add_kfunc_call()
8847 	btf_id = btf_check_iter_arg(meta->btf, meta->func_proto, regno - 1);  in process_iter_arg()
13166 	args = (const struct btf_param *)(meta->func_proto + 1);  in check_kfunc_args()
13167 	nargs = btf_type_vlen(meta->func_proto);  in check_kfunc_args()
13702 	const struct btf_type *func, *func_proto;  in fetch_kfunc_meta()  local
13722 	func_proto = btf_type_by_id(desc_btf, func->type);  in fetch_kfunc_meta()
13733 	meta->func_proto = func_proto;  in fetch_kfunc_meta()
14156 	t = btf_type_skip_modifiers(desc_btf, meta.func_proto->type, NULL);  in check_kfunc_call()
14274 	nargs = btf_type_vlen(meta.func_proto);  in check_kfunc_call()
14275 	args = (const struct btf_param *)(meta.func_proto + 1);  in check_kfunc_call()
17739 		cs->num_params = btf_type_vlen(meta.func_proto);  in get_call_summary()
17741 		cs->is_void = btf_type_is_void(btf_type_by_id(meta.btf, meta.func_proto->type));  in get_call_summary()
18470 	const struct btf_type *type, *func_proto;  in check_btf_func_early()  local
18549 		func_proto = btf_type_by_id(btf, type->type);  in check_btf_func_early()
18550 		if (unlikely(!func_proto || !btf_type_is_func_proto(func_proto)))  in check_btf_func_early()
18571 	const struct btf_type *type, *func_proto, *ret_type;  in check_btf_func()  local
18617 		func_proto = btf_type_by_id(btf, type->type);  in check_btf_func()
18619 		ret_type = btf_type_skip_modifiers(btf, func_proto->type, NULL);  in check_btf_func()
23990 	const struct btf_type *t, *func_proto;  in check_struct_ops_btf_id()  local
24039 	func_proto = btf_type_resolve_func_ptr(btf, member->type,  in check_struct_ops_btf_id()
24041 	if (!func_proto) {  in check_struct_ops_btf_id()
24090 	prog->aux->attach_func_proto = func_proto;  in check_struct_ops_btf_id()