diff options
| author |   Al Viro <viro@zeniv.linux.org.uk> | 2014-11-28 15:48:29 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-02-04 01:34:15 -0500 |
| commit | 21226abb4e9f14d88238964d89b279e461ddc30c (patch) | |
| tree | 011a9d9ba825248de5ad0bb6d25a61d69d22ffeb /net/ipv4/ping.c | |
| parent | ip: convert tcp_sendmsg() to iov_iter primitives (diff) | |
| download | wireguard-linux-21226abb4e9f14d88238964d89b279e461ddc30c.tar.xz wireguard-linux-21226abb4e9f14d88238964d89b279e461ddc30c.zip | |
net: switch memcpy_fromiovec()/memcpy_fromiovecend() users to copy_from_iter()
That takes care of the majority of ->sendmsg() instances - most of them
via memcpy_to_msg() or assorted getfrag() callbacks. One place where we
still keep memcpy_fromiovecend() is tipc - there we potentially read the
same data over and over; separate patch, that...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/ipv4/ping.c')
| -rw-r--r-- | net/ipv4/ping.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 9e15ba701401..e9f66e1cda50 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -599,18 +599,18 @@ int ping_getfrag(void *from, char *to, struct pingfakehdr *pfh = (struct pingfakehdr *)from; if (offset == 0) { - if (fraglen < sizeof(struct icmphdr)) + fraglen -= sizeof(struct icmphdr); + if (fraglen < 0) BUG(); - if (csum_partial_copy_fromiovecend(to + sizeof(struct icmphdr), - pfh->msg->msg_iter.iov, 0, fraglen - sizeof(struct icmphdr), - &pfh->wcheck)) + if (csum_and_copy_from_iter(to + sizeof(struct icmphdr), + fraglen, &pfh->wcheck, + &pfh->msg->msg_iter) != fraglen) return -EFAULT; } else if (offset < sizeof(struct icmphdr)) { BUG(); } else { - if (csum_partial_copy_fromiovecend - (to, pfh->msg->msg_iter.iov, offset - sizeof(struct icmphdr), - fraglen, &pfh->wcheck)) + if (csum_and_copy_from_iter(to, fraglen, &pfh->wcheck, + &pfh->msg->msg_iter) != fraglen) return -EFAULT; } |