static int io_recvmsg_mshot_prep(struct io_kiocb *req,
				 struct io_async_msghdr *iomsg,
				 size_t namelen, size_t controllen)
static int io_recvmsg_mshot_prep(struct io_kiocb *req,
				 struct io_async_msghdr *iomsg,
				 int namelen, size_t controllen)