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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (46 commits)
  [NET] ifb: set separate lockdep classes for queue locks
  [IPV6] KCONFIG: Fix description about IPV6_TUNNEL.
  [TCP]: Fix shrinking windows with window scaling
  netpoll: zap_completion_queue: adjust skb->users counter
  bridge: use time_before() in br_fdb_cleanup()
  [TG3]: Fix build warning on sparc32.
  MAINTAINERS: bluez-devel is subscribers-only
  audit: netlink socket can be auto-bound to pid other than current->pid (v2)
  [NET]: Fix permissions of /proc/net
  [SCTP]: Fix a race between module load and protosw access
  [NETFILTER]: ipt_recent: sanity check hit count
  [NETFILTER]: nf_conntrack_h323: logical-bitwise & confusion in process_setup()
  [RT2X00] drivers/net/wireless/rt2x00/rt2x00dev.c: remove dead code, fix warning
  [IPV4]: esp_output() misannotations
  [8021Q]: vlan_dev misannotations
  xfrm: ->eth_proto is __be16
  [IPV4]: ipv4_is_lbcast() misannotations
  [SUNRPC]: net/* NULL noise
  [SCTP]: fix misannotated __sctp_rcv_asconf_lookup()
  [PKT_SCHED]: annotate cls_u32
  ...

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index 15949d3df17e..af233b591534 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -35,6 +35,7 @@
 #include <linux/moduleparam.h>
 #include <net/pkt_sched.h>
 #include <net/net_namespace.h>
+#include <linux/lockdep.h>
 
 #define TX_TIMEOUT  (2*HZ)
 
@@ -227,6 +228,16 @@ static struct rtnl_link_ops ifb_link_ops __read_mostly = {
 module_param(numifbs, int, 0);
 MODULE_PARM_DESC(numifbs, "Number of ifb devices");
 
+/*
+ * dev_ifb->queue_lock is usually taken after dev->ingress_lock,
+ * reversely to e.g. qdisc_lock_tree(). It should be safe until
+ * ifb doesn't take dev->queue_lock with dev_ifb->ingress_lock.
+ * But lockdep should know that ifb has different locks from dev.
+ */
+static struct lock_class_key ifb_queue_lock_key;
+static struct lock_class_key ifb_ingress_lock_key;
+
+
 static int __init ifb_init_one(int index)
 {
         struct net_device *dev_ifb;
@@ -246,6 +257,10 @@ static int __init ifb_init_one(int index)
         err = register_netdevice(dev_ifb);
         if (err < 0)
                 goto err;
+
+        lockdep_set_class(&dev_ifb->queue_lock, &ifb_queue_lock_key);
+        lockdep_set_class(&dev_ifb->ingress_lock, &ifb_ingress_lock_key);
+
         return 0;
 
 err: