2305 int __copy_msghdr_from_user(struct msghdr *kmsg,  in __copy_msghdr_from_user()  argument
2316 	kmsg->msg_control_is_user = true;  in __copy_msghdr_from_user()
2317 	kmsg->msg_control_user = msg.msg_control;  in __copy_msghdr_from_user()
2318 	kmsg->msg_controllen = msg.msg_controllen;  in __copy_msghdr_from_user()
2319 	kmsg->msg_flags = msg.msg_flags;  in __copy_msghdr_from_user()
2321 	kmsg->msg_namelen = msg.msg_namelen;  in __copy_msghdr_from_user()
2323 		kmsg->msg_namelen = 0;  in __copy_msghdr_from_user()
2325 	if (kmsg->msg_namelen < 0)  in __copy_msghdr_from_user()
2328 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))  in __copy_msghdr_from_user()
2329 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);  in __copy_msghdr_from_user()
2334 	if (msg.msg_name && kmsg->msg_namelen) {  in __copy_msghdr_from_user()
2337 						  kmsg->msg_namelen,  in __copy_msghdr_from_user()
2338 						  kmsg->msg_name);  in __copy_msghdr_from_user()
2343 		kmsg->msg_name = NULL;  in __copy_msghdr_from_user()
2344 		kmsg->msg_namelen = 0;  in __copy_msghdr_from_user()
2350 	kmsg->msg_iocb = NULL;  in __copy_msghdr_from_user()
2356 static int copy_msghdr_from_user(struct msghdr *kmsg,  in copy_msghdr_from_user()  argument
2364 	err = __copy_msghdr_from_user(kmsg, umsg, save_addr, &msg.msg_iov,  in copy_msghdr_from_user()
2371 			    UIO_FASTIOV, iov, &kmsg->msg_iter);  in copy_msghdr_from_user()