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

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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  dca: disable dca on IOAT ver.3.0 multiple-IOH platforms
  netpoll: Disable IRQ around RCU dereference in netpoll_rx
  sctp: Do not reset the packet during sctp_packet_config().
  net/llc: storing negative error codes in unsigned short
  MAINTAINERS: move atlx discussions to netdev
  drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack memory
  drivers/net/eql.c: prevent reading uninitialized stack memory
  drivers/net/usb/hso.c: prevent reading uninitialized memory
  xfrm: dont assume rcu_read_lock in xfrm_output_one()
  r8169: Handle rxfifo errors on 8168 chips
  3c59x: Remove atomic context inside vortex_{set|get}_wol
  tcp: Prevent overzealous packetization by SWS logic.
  net: RPS needs to depend upon USE_GENERIC_SMP_HELPERS
  phylib: fix PAL state machine restart on resume
  net: use rcu_barrier() in rollback_registered_many
  bonding: correctly process non-linear skbs
  ipv4: enable getsockopt() for IP_NODEFRAG
  ipv4: force_igmp_version ignored when a IGMPv3 query received
  ppp: potential NULL dereference in ppp_mp_explode()
  net/llc: make opt unsigned in llc_ui_setsockopt()
  ...
This commit is contained in:
Linus Torvalds
2010-09-19 11:05:50 -07:00
parent f1c9c9797a 4e8cec269d
commit 7d7dee96e1
22 changed files with 136 additions and 35 deletions
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8
include/linux/netpoll.h
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@@ -63,20 +63,20 @@ static inline bool netpoll_rx(struct sk_buff *skb)
unsigned long flags;
bool ret = false;
rcu_read_lock_bh();
local_irq_save(flags);
npinfo = rcu_dereference_bh(skb->dev->npinfo);
if (!npinfo || (list_empty(&npinfo->rx_np) && !npinfo->rx_flags))
goto out;
spin_lock_irqsave(&npinfo->rx_lock, flags);
spin_lock(&npinfo->rx_lock);
/* check rx_flags again with the lock held */
if (npinfo->rx_flags && __netpoll_rx(skb))
ret = true;
spin_unlock_irqrestore(&npinfo->rx_lock, flags);
spin_unlock(&npinfo->rx_lock);
out:
rcu_read_unlock_bh();
local_irq_restore(flags);
return ret;
}