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| author | David S. Miller <davem@davemloft.net> | 2009-03-27 17:22:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-27 17:22:55 -0700 |
| commit | 80e20f6f360078b4852eac6825883e5aa25564bb (patch) | |
| tree | 817c24d119c64984a4c68f565118b5398937ab15 /net/netrom | |
| parent | 79675900cbf2c4e67e95f94983ec4ee800b83739 (diff) | |
| download | kernel_samsung_smdk4412-80e20f6f360078b4852eac6825883e5aa25564bb.zip kernel_samsung_smdk4412-80e20f6f360078b4852eac6825883e5aa25564bb.tar.gz kernel_samsung_smdk4412-80e20f6f360078b4852eac6825883e5aa25564bb.tar.bz2 | |
Revert "netrom: zero length frame filtering in NetRom"
This reverts commit a3ac80a130300573de351083cf4a5b46d233e8bf.
Alan Cox says that zero length writes do have special meaning
and are useful in this protocol.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netrom')
| -rw-r--r-- | net/netrom/af_netrom.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index d1c16bb..4e705f8 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1037,10 +1037,6 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock, unsigned char *asmptr; int size; - /* Netrom empty data frame has no meaning : don't send */ - if (len == 0) - return 0; - if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT)) return -EINVAL; @@ -1175,11 +1171,6 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock, skb_reset_transport_header(skb); copied = skb->len; - /* NetRom empty data frame has no meaning : ignore it */ - if (copied == 0) { - goto out; - } - if (copied > size) { copied = size; msg->msg_flags |= MSG_TRUNC; @@ -1195,7 +1186,7 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock, msg->msg_namelen = sizeof(*sax); -out: skb_free_datagram(sk, skb); + skb_free_datagram(sk, skb); release_sock(sk); return copied; |