switch sctp_user_addto_chunk() and sctp_datamsg_from_user() to passing iov_iter
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 158701d..a338091 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -164,7 +164,7 @@
*/
struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
struct sctp_sndrcvinfo *sinfo,
- struct msghdr *msgh, int msg_len)
+ struct iov_iter *from)
{
int max, whole, i, offset, over, err;
int len, first_len;
@@ -172,6 +172,7 @@
struct sctp_chunk *chunk;
struct sctp_datamsg *msg;
struct list_head *pos, *temp;
+ size_t msg_len = iov_iter_count(from);
__u8 frag;
msg = sctp_datamsg_new(GFP_KERNEL);
@@ -279,12 +280,10 @@
goto errout;
}
- err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov);
+ err = sctp_user_addto_chunk(chunk, len, from);
if (err < 0)
goto errout_chunk_free;
- offset += len;
-
/* Put the chunk->skb back into the form expected by send. */
__skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr
- (__u8 *)chunk->skb->data);
@@ -317,7 +316,7 @@
goto errout;
}
- err = sctp_user_addto_chunk(chunk, offset, over, msgh->msg_iov);
+ err = sctp_user_addto_chunk(chunk, over, from);
/* Put the chunk->skb back into the form expected by send. */
__skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr