The details of the iov_iter types are appropriately abstracted, so
there's no need to check for specific type fields. Just let the
abstractions handle it.
This is preparing for io_uring/net's io_send to utilize the more
efficient ITER_UBUF.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/20230111184245.3784393-1-kbusch@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
if (msg->msg_namelen)
goto err;
- ret = -EINVAL;
- if (unlikely(msg->msg_iter.nr_segs == 0) ||
- unlikely(msg->msg_iter.iov->iov_base == NULL))
- goto err;
noblock = msg->msg_flags & MSG_DONTWAIT;
timeo = sock_sndtimeo(sk, noblock);