Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1750 commits)
  ixgbe: Allow Priority Flow Control settings to survive a device reset
  net: core: remove unneeded include in net/core/utils.c.
  e1000e: update version number
  e1000e: fix close interrupt race
  e1000e: fix loss of multicast packets
  e1000e: commonize tx cleanup routine to match e1000 & igb
  netfilter: fix nf_logger name in ebt_ulog.
  netfilter: fix warning in ebt_ulog init function.
  netfilter: fix warning about invalid const usage
  e1000: fix close race with interrupt
  e1000: cleanup clean_tx_irq routine so that it completely cleans ring
  e1000: fix tx hang detect logic and address dma mapping issues
  bridge: bad error handling when adding invalid ether address
  bonding: select current active slave when enslaving device for mode tlb and alb
  gianfar: reallocate skb when headroom is not enough for fcb
  Bump release date to 25Mar2009 and version to 0.22
  r6040: Fix second PHY address
  qeth: fix wait_event_timeout handling
  qeth: check for completion of a running recovery
  qeth: unregister MAC addresses during recovery.
  ...

Manually fixed up conflicts in:
	drivers/infiniband/hw/cxgb3/cxio_hal.h
	drivers/infiniband/hw/nes/nes_nic.c

1 files changed, 15 insertions, 6 deletions

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 00d9e5e13158..7da5ebb84e97 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1435,6 +1435,11 @@ static int ax25_sendmsg(struct kiocb *iocb, struct socket *sock,
 	size_t size;
 	int lv, err, addr_len = msg->msg_namelen;
 
+	/* AX.25 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;
 
@@ -1529,10 +1534,8 @@ static int ax25_sendmsg(struct kiocb *iocb, struct socket *sock,
 		dp = ax25->digipeat;
 	}
 
-	SOCK_DEBUG(sk, "AX.25: sendto: Addresses built.\n");
-
 	/* Build a packet */
-	SOCK_DEBUG(sk, "AX.25: sendto: building packet.\n");
+	SOCK_DEBUG(sk, "AX.25: sendto: Addresses built. Building packet.\n");
 
 	/* Assume the worst case */
 	size = len + ax25->ax25_dev->dev->hard_header_len;
@@ -1636,6 +1639,13 @@ static int ax25_recvmsg(struct kiocb *iocb, struct socket *sock,
 	skb_reset_transport_header(skb);
 	copied = skb->len;
 
+	/* AX.25 empty data frame has no meaning : ignore it */
+	if (copied == 0) {
+		err = copied;
+		skb_free_datagram(sk, skb);
+		goto out;
+	}
+
 	if (copied > size) {
 		copied = size;
 		msg->msg_flags |= MSG_TRUNC;
@@ -1985,9 +1995,8 @@ static const struct proto_ops ax25_proto_ops = {
 /*
  *	Called by socket.c on kernel start up
  */
-static struct packet_type ax25_packet_type = {
-	.type	=	__constant_htons(ETH_P_AX25),
-	.dev	=	NULL,				/* All devices */
+static struct packet_type ax25_packet_type __read_mostly = {
+	.type	=	cpu_to_be16(ETH_P_AX25),
 	.func	=	ax25_kiss_rcv,
 };