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| author | David S. Miller <davem@davemloft.net> | 2009-04-15 07:28:00 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-15 07:28:00 +0400 |
| commit | 6fd4777a1fec1f7757b5a302ad3fdcc1eae2abba (patch) | |
| tree | 620a872de67c78c392ed92a93810557da72fb86f | |
| parent | 239795adf7f1a40cf0be0e05544d37706c9b4cf9 (diff) | |
| download | linux-6fd4777a1fec1f7757b5a302ad3fdcc1eae2abba.tar.xz | |
Revert "rose: zero length frame filtering in af_rose.c"
This reverts commit 244f46ae6e9e18f6fc0be7d1f49febde4762c34b.
Alan Cox did the research, and just like the other radio protocols
zero-length frames have meaning because at the top level ROSE is
X.25 PLP.
So this zero-length filtering is invalid.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/rose/af_rose.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 0f36e8d59b29..877a7f65f707 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1072,10 +1072,6 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, unsigned char *asmptr; int n, size, qbit = 0; - /* ROSE empty 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; @@ -1273,12 +1269,6 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock, skb_reset_transport_header(skb); copied = skb->len; - /* ROSE empty frame has no meaning : ignore it */ - if (copied == 0) { - skb_free_datagram(sk, skb); - return copied; - } - if (copied > size) { copied = size; msg->msg_flags |= MSG_TRUNC; |