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, 8 insertions, 5 deletions

diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 29a74c01d8de..f11931c18381 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -801,8 +801,11 @@ static int arp_process(struct sk_buff *skb)
  *  cache.
  */
 
-	/* Special case: IPv4 duplicate address detection packet (RFC2131) */
-	if (sip == 0) {
+	/*
+	 *  Special case: IPv4 duplicate address detection packet (RFC2131)
+	 *  and Gratuitous ARP/ARP Announce. (RFC3927, Section 2.4)
+	 */
+	if (sip == 0 || tip == sip) {
 		if (arp->ar_op == htons(ARPOP_REQUEST) &&
 		    inet_addr_type(net, tip) == RTN_LOCAL &&
 		    !arp_ignore(in_dev, sip, tip))
@@ -892,7 +895,7 @@ static int arp_process(struct sk_buff *skb)
 out:
 	if (in_dev)
 		in_dev_put(in_dev);
-	kfree_skb(skb);
+	consume_skb(skb);
 	return 0;
 }
 
@@ -1225,8 +1228,8 @@ void arp_ifdown(struct net_device *dev)
  *	Called once on startup.
  */
 
-static struct packet_type arp_packet_type = {
-	.type =	__constant_htons(ETH_P_ARP),
+static struct packet_type arp_packet_type __read_mostly = {
+	.type =	cpu_to_be16(ETH_P_ARP),
 	.func =	arp_rcv,
 };