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

Pull networking fixes from David S. Miller:

This has the fix for the wireless issues I ran into the other week as
well as:

 1) Fix CAN c_can driver transmit handling resulting in BUG check
    triggers, from AnilKumar Ch.

 2) Fix packet drop monitor sleeping in atomic context, from Eric
    Dumazet.

 3) Fix mv643xx_eth driver build regression, from Andrew Lunn.

 4) Inetpeer freeing needs an RCU grace period in order to avoid races
    during tree invalidation.  From Eric Dumazet.

 5) Fix endianness bugs in xt_HMARK netfilter module, from Hans
    Schillstrom.

 6) Add proper module refcounting to l2tp_eth to avoid crash on module
    unload, from Eric Dumazet.

 7) Fix truncation of neighbour entry dumps due to logic errors in
    neigh_dump_info() and friends, from Eric Dumazet.

 8) The conversion of fib6_age() to dst_neigh_lookup() accidently
    reversed the logic of a flags test, fix from Thomas Graf.

 9) Fix checksum configuration in newer sky2 chips, from Stephen
    Hemminger.

10) Revert BQL support in NIU driver, doesn't work.

11) l2tp_ip_sendmsg() illegally uses a route without a proper reference.
    From Eric Dumazet.

12) be2net driver references an SKB after it's potentially been freed,
    also from Eric Dumazet.

13) Fix RCU stalls in dummy net driver init.  Also from Eric Dumazet.

14) lpc_eth has several bugs in it's transmit engine leading to packet
    leaks and improper queue wakes, from Eric Dumazet.

15) Apply short DMA workaround to more tg3 chips, from Matt Carlson.

16) Add tilegx network driver.

17) Bonding queue mapping for a packet can get corrupted, fix from Eric
    Dumazet.

18) Fix bug in netpoll_send_udp() SKB management that can leave garbage
    in the payload in certain situations.  From Eric Dumazet.

19) bnx2x driver interprets chip RX checksum offload incorrectly in
    encapsulation situations.  Fix from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (75 commits)
  bnx2x: fix checksum validation
  netpoll: fix netpoll_send_udp() bugs
  bonding: Fix corrupted queue_mapping
  bonding:record primary when modify it via sysfs
  tilegx network driver: initial support
  tg3: Apply short DMA frag workaround to 5906
  net: stmmac: Fix clock en-/disable calls
  lpc_eth: fix tx completion
  lpc_eth: add missing ndo_change_mtu()
  dummy: fix rcu_sched self-detected stalls
  net: Reorder initialization in ip_route_output to fix gcc warning
  virtio-net: fix a race on 32bit arches
  r8169: avoid NAPI scheduling delay.
  net: Make linux/tcp.h C++ friendly (trivial)
  netdev: fix drivers/net/phy/ kernel-doc warnings
  net/core: fix kernel-doc warnings
  be2net: fix a race in be_xmit()
  l2tp: fix a race in l2tp_ip_sendmsg()
  mac80211: add back channel change flag
  NFC: Fix possible NULL ptr deref when getting the name of a socket
  ...

1 files changed, 9 insertions, 7 deletions

diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 536bda072a16..8dc84d66eea1 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -686,7 +686,7 @@ static int c_can_get_berr_counter(const struct net_device *dev,
  *
  * We iterate from priv->tx_echo to priv->tx_next and check if the
  * packet has been transmitted, echo it back to the CAN framework.
- * If we discover a not yet transmitted package, stop looking for more.
+ * If we discover a not yet transmitted packet, stop looking for more.
  */
 static void c_can_do_tx(struct net_device *dev)
 {
@@ -698,7 +698,7 @@ static void c_can_do_tx(struct net_device *dev)
 	for (/* nix */; (priv->tx_next - priv->tx_echo) > 0; priv->tx_echo++) {
 		msg_obj_no = get_tx_echo_msg_obj(priv);
 		val = c_can_read_reg32(priv, &priv->regs->txrqst1);
-		if (!(val & (1 << msg_obj_no))) {
+		if (!(val & (1 << (msg_obj_no - 1)))) {
 			can_get_echo_skb(dev,
 					msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST);
 			stats->tx_bytes += priv->read_reg(priv,
@@ -706,6 +706,8 @@ static void c_can_do_tx(struct net_device *dev)
 					& IF_MCONT_DLC_MASK;
 			stats->tx_packets++;
 			c_can_inval_msg_object(dev, 0, msg_obj_no);
+		} else {
+			break;
 		}
 	}
 
@@ -950,7 +952,7 @@ static int c_can_poll(struct napi_struct *napi, int quota)
 	struct net_device *dev = napi->dev;
 	struct c_can_priv *priv = netdev_priv(dev);
 
-	irqstatus = priv->read_reg(priv, &priv->regs->interrupt);
+	irqstatus = priv->irqstatus;
 	if (!irqstatus)
 		goto end;
 
@@ -1028,12 +1030,11 @@ end:
 
 static irqreturn_t c_can_isr(int irq, void *dev_id)
 {
-	u16 irqstatus;
 	struct net_device *dev = (struct net_device *)dev_id;
 	struct c_can_priv *priv = netdev_priv(dev);
 
-	irqstatus = priv->read_reg(priv, &priv->regs->interrupt);
-	if (!irqstatus)
+	priv->irqstatus = priv->read_reg(priv, &priv->regs->interrupt);
+	if (!priv->irqstatus)
 		return IRQ_NONE;
 
 	/* disable all interrupts and schedule the NAPI */
@@ -1063,10 +1064,11 @@ static int c_can_open(struct net_device *dev)
 		goto exit_irq_fail;
 	}
 
+	napi_enable(&priv->napi);
+
 	/* start the c_can controller */
 	c_can_start(dev);
 
-	napi_enable(&priv->napi);
 	netif_start_queue(dev);
 
 	return 0;