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

Pull networking fixes from David Miller:

 1) Fix ARM BPF JIT handling of negative 'k' values, from Chen Gang.

 2) Insufficient space reserved for bridge netlink values, fix from
    Stephen Hemminger.

 3) Some dst_neigh_lookup*() callers don't interpret error pointer
    correctly, fix from Zhouyi Zhou.

 4) Fix transport match in SCTP active_path loops, from Xugeng Zhang.

 5) Fix qeth driver handling of multi-order SKB frags, from Frank
    Blaschka.

 6) fec driver is missing napi_disable() call, resulting in crashes on
    unload, from Georg Hofmann.

 7) Don't try to handle PMTU events on a listening socket, fix from Eric
    Dumazet.

 8) Fix timestamp location calculations in IP option processing, from
    David Ward.

 9) FIB_TABLE_HASHSZ setting is not controlled by the correct kconfig
    tests, from Denis V Lunev.

10) Fix TX descriptor push handling in SFC driver, from Ben Hutchings.

11) Fix isdn/hisax and tulip/de4x5 kconfig dependencies, from Arnd
    Bergmann.

12) bnx2x statistics don't handle 4GB rollover correctly, fix from
    Maciej Żenczykowski.

13) Openvswitch bug fixes for vport del/new error reporting, missing
    genlmsg_end() call in netlink processing, and mis-parsing of
    LLC/SNAP ethernet types.  From Rich Lane.

14) SKB pfmemalloc state should only be propagated from the head page of
    a compound page, fix from Pavel Emelyanov.

15) Fix link handling in tg3 driver for 5715 chips when autonegotation
    is disabled.  From Nithin Sujir.

16) Fix inverted test of cpdma_check_free_tx_desc return value in
    davinci_emac driver, from Mugunthan V N.

17) vlan_depth is incorrectly calculated in skb_network_protocol(), from
    Li RongQing.

18) Fix probing of Gobi 1K devices in qmi_wwan driver, and fix NCM
    device mode backwards compat in cdc_ncm driver.  From Bjørn Mork.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
  inet: limit length of fragment queue hash table bucket lists
  qeth: Fix scatter-gather regression
  qeth: Fix invalid router settings handling
  qeth: delay feature trace
  tcp: dont handle MTU reduction on LISTEN socket
  bnx2x: fix occasional statistics off-by-4GB error
  vhost/net: fix heads usage of ubuf_info
  bridge: Add support for setting BR_ROOT_BLOCK flag.
  bnx2x: add missing napi deletion in error path
  drivers: net: ethernet: ti: davinci_emac: fix usage of cpdma_check_free_tx_desc()
  ethernet/tulip: DE4x5 needs VIRT_TO_BUS
  isdn: hisax: netjet requires VIRT_TO_BUS
  net: cdc_ncm, cdc_mbim: allow user to prefer NCM for backwards compatibility
  rtnetlink: Mask the rta_type when range checking
  Revert "ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally"
  Fix dst_neigh_lookup/dst_neigh_lookup_skb return value handling bug
  smsc75xx: configuration help incorrectly mentions smsc95xx
  net: fec: fix missing napi_disable call
  net: fec: restart the FEC when PHY speed changes
  skb: Propagate pfmemalloc on skb from head page only
  ...

1 files changed, 9 insertions, 6 deletions

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 37add21..59ac143 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -666,6 +666,7 @@ static int netconsole_netdev_event(struct notifier_block *this,
 		goto done;
 
 	spin_lock_irqsave(&target_list_lock, flags);
+restart:
 	list_for_each_entry(nt, &target_list, list) {
 		netconsole_target_get(nt);
 		if (nt->np.dev == dev) {
@@ -678,15 +679,17 @@ static int netconsole_netdev_event(struct notifier_block *this,
 			case NETDEV_UNREGISTER:
 				/*
 				 * rtnl_lock already held
+				 * we might sleep in __netpoll_cleanup()
 				 */
-				if (nt->np.dev) {
-					__netpoll_cleanup(&nt->np);
-					dev_put(nt->np.dev);
-					nt->np.dev = NULL;
-				}
+				spin_unlock_irqrestore(&target_list_lock, flags);
+				__netpoll_cleanup(&nt->np);
+				spin_lock_irqsave(&target_list_lock, flags);
+				dev_put(nt->np.dev);
+				nt->np.dev = NULL;
 				nt->enabled = 0;
 				stopped = true;
-				break;
+				netconsole_target_put(nt);
+				goto restart;
 			}
 		}
 		netconsole_target_put(nt);