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: (1429 commits)
  net: Allow dependancies of FDDI & Tokenring to be modular.
  igb: Fix build warning when DCA is disabled.
  net: Fix warning fallout from recent NAPI interface changes.
  gro: Fix potential use after free
  sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
  sfc: When disabling the NIC, close the device rather than unregistering it
  sfc: SFT9001: Add cable diagnostics
  sfc: Add support for multiple PHY self-tests
  sfc: Merge top-level functions for self-tests
  sfc: Clean up PHY mode management in loopback self-test
  sfc: Fix unreliable link detection in some loopback modes
  sfc: Generate unique names for per-NIC workqueues
  802.3ad: use standard ethhdr instead of ad_header
  802.3ad: generalize out mac address initializer
  802.3ad: initialize ports LACPDU from const initializer
  802.3ad: remove typedef around ad_system
  802.3ad: turn ports is_individual into a bool
  802.3ad: turn ports is_enabled into a bool
  802.3ad: make ntt bool
  ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
  ...

Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).

1 files changed, 15 insertions, 14 deletions

diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index 8592f8fb8475..ff4d75205c25 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -379,8 +379,8 @@ static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
 
 	/* Wakeup Tx queue if this ring stopped it */
 	if (unlikely(ring->blocked)) {
-		if (((u32) (ring->prod - ring->cons) <=
-		     ring->size - HEADROOM - MAX_DESC_TXBBS) && !cq->armed) {
+		if ((u32) (ring->prod - ring->cons) <=
+		     ring->size - HEADROOM - MAX_DESC_TXBBS) {
 
 			/* TODO: support multiqueue netdevs. Currently, we block
 			 * when *any* ring is full. Note that:
@@ -404,14 +404,11 @@ void mlx4_en_tx_irq(struct mlx4_cq *mcq)
 	struct mlx4_en_priv *priv = netdev_priv(cq->dev);
 	struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
 
-	spin_lock_irq(&ring->comp_lock);
-	cq->armed = 0;
+	if (!spin_trylock(&ring->comp_lock))
+		return;
 	mlx4_en_process_tx_cq(cq->dev, cq);
-	if (ring->blocked)
-		mlx4_en_arm_cq(priv, cq);
-	else
-		mod_timer(&cq->timer, jiffies + 1);
-	spin_unlock_irq(&ring->comp_lock);
+	mod_timer(&cq->timer, jiffies + 1);
+	spin_unlock(&ring->comp_lock);
 }
 
 
@@ -424,8 +421,10 @@ void mlx4_en_poll_tx_cq(unsigned long data)
 
 	INC_PERF_COUNTER(priv->pstats.tx_poll);
 
-	netif_tx_lock(priv->dev);
-	spin_lock_irq(&ring->comp_lock);
+	if (!spin_trylock(&ring->comp_lock)) {
+		mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
+		return;
+	}
 	mlx4_en_process_tx_cq(cq->dev, cq);
 	inflight = (u32) (ring->prod - ring->cons - ring->last_nr_txbb);
 
@@ -435,8 +434,7 @@ void mlx4_en_poll_tx_cq(unsigned long data)
 	if (inflight && priv->port_up)
 		mod_timer(&cq->timer, jiffies + MLX4_EN_TX_POLL_TIMEOUT);
 
-	spin_unlock_irq(&ring->comp_lock);
-	netif_tx_unlock(priv->dev);
+	spin_unlock(&ring->comp_lock);
 }
 
 static struct mlx4_en_tx_desc *mlx4_en_bounce_to_desc(struct mlx4_en_priv *priv,
@@ -479,7 +477,10 @@ static inline void mlx4_en_xmit_poll(struct mlx4_en_priv *priv, int tx_ind)
 
 	/* Poll the CQ every mlx4_en_TX_MODER_POLL packets */
 	if ((++ring->poll_cnt & (MLX4_EN_TX_POLL_MODER - 1)) == 0)
-		mlx4_en_process_tx_cq(priv->dev, cq);
+		if (spin_trylock(&ring->comp_lock)) {
+			mlx4_en_process_tx_cq(priv->dev, cq);
+			spin_unlock(&ring->comp_lock);
+		}
 }
 
 static void *get_frag_ptr(struct sk_buff *skb)