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authorAl Viro <viro@zeniv.linux.org.uk>2014-11-15 01:11:23 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-11-24 05:16:40 -0500
commite0eb093e794452791b0f932a0120f410f614ad82 (patch)
tree598ab3c7b9f2d179e3b3c318cc0619e304c2bd5f /net/sctp/sm_make_chunk.c
parent8feb2fb2bb986c533e18037d3c45a5f779421992 (diff)
downloadop-kernel-dev-e0eb093e794452791b0f932a0120f410f614ad82.zip
op-kernel-dev-e0eb093e794452791b0f932a0120f410f614ad82.tar.gz
switch sctp_user_addto_chunk() and sctp_datamsg_from_user() to passing iov_iter
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/sctp/sm_make_chunk.c')
-rw-r--r--net/sctp/sm_make_chunk.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index e49bcce..e49e231 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1491,26 +1491,26 @@ static void *sctp_addto_chunk_fixed(struct sctp_chunk *chunk,
* chunk is not big enough.
* Returns a kernel err value.
*/
-int sctp_user_addto_chunk(struct sctp_chunk *chunk, int off, int len,
- struct iovec *data)
+int sctp_user_addto_chunk(struct sctp_chunk *chunk, int len,
+ struct iov_iter *from)
{
- __u8 *target;
- int err = 0;
+ void *target;
+ ssize_t copied;
/* Make room in chunk for data. */
target = skb_put(chunk->skb, len);
/* Copy data (whole iovec) into chunk */
- if ((err = memcpy_fromiovecend(target, data, off, len)))
- goto out;
+ copied = copy_from_iter(target, len, from);
+ if (copied != len)
+ return -EFAULT;
/* Adjust the chunk length field. */
chunk->chunk_hdr->length =
htons(ntohs(chunk->chunk_hdr->length) + len);
chunk->chunk_end = skb_tail_pointer(chunk->skb);
-out:
- return err;
+ return 0;
}
/* Helper function to assign a TSN if needed. This assumes that both
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