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: (1436 commits)
  cassini: Use local-mac-address prom property for Cassini MAC address
  net: remove the duplicate #ifdef __KERNEL__
  net: bridge: check the length of skb after nf_bridge_maybe_copy_header()
  netconsole: clarify stopping message
  netconsole: don't announce stopping if nothing happened
  cnic: Fix the type field in SPQ messages
  netfilter: fix export secctx error handling
  netfilter: fix the race when initializing nf_ct_expect_hash_rnd
  ipv4: IP defragmentation must be ECN aware
  net: r6040: Return proper error for r6040_init_one
  dcb: use after free in dcb_flushapp()
  dcb: unlock on error in dcbnl_ieee_get()
  net: ixp4xx_eth: Return proper error for eth_init_one
  include/linux/if_ether.h: Add #define ETH_P_LINK_CTL for HPNA and wlan local tunnel
  net: add POLLPRI to sock_def_readable()
  af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks.
  net_sched: pfifo_head_drop problem
  mac80211: remove stray extern
  mac80211: implement off-channel TX using hw r-o-c offload
  mac80211: implement hardware offload for remain-on-channel
  ...

1 files changed, 18 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index dc7b30b170d0..870df8c42622 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -428,6 +428,7 @@ static void carl9170_cancel_worker(struct ar9170 *ar)
 	cancel_delayed_work_sync(&ar->led_work);
 #endif /* CONFIG_CARL9170_LEDS */
 	cancel_work_sync(&ar->ps_work);
+	cancel_work_sync(&ar->ping_work);
 	cancel_work_sync(&ar->ampdu_work);
 }
 
@@ -533,6 +534,21 @@ void carl9170_restart(struct ar9170 *ar, const enum carl9170_restart_reasons r)
 	 */
 }
 
+static void carl9170_ping_work(struct work_struct *work)
+{
+	struct ar9170 *ar = container_of(work, struct ar9170, ping_work);
+	int err;
+
+	if (!IS_STARTED(ar))
+		return;
+
+	mutex_lock(&ar->mutex);
+	err = carl9170_echo_test(ar, 0xdeadbeef);
+	if (err)
+		carl9170_restart(ar, CARL9170_RR_UNRESPONSIVE_DEVICE);
+	mutex_unlock(&ar->mutex);
+}
+
 static int carl9170_init_interface(struct ar9170 *ar,
 				   struct ieee80211_vif *vif)
 {
@@ -1614,6 +1630,7 @@ void *carl9170_alloc(size_t priv_size)
 		skb_queue_head_init(&ar->tx_pending[i]);
 	}
 	INIT_WORK(&ar->ps_work, carl9170_ps_work);
+	INIT_WORK(&ar->ping_work, carl9170_ping_work);
 	INIT_WORK(&ar->restart_work, carl9170_restart_work);
 	INIT_WORK(&ar->ampdu_work, carl9170_ampdu_work);
 	INIT_DELAYED_WORK(&ar->tx_janitor, carl9170_tx_janitor);
@@ -1829,7 +1846,7 @@ int carl9170_register(struct ar9170 *ar)
 	err = carl9170_led_register(ar);
 	if (err)
 		goto err_unreg;
-#endif /* CONFIG_CAR9L170_LEDS */
+#endif /* CONFIG_CARL9170_LEDS */
 
 #ifdef CONFIG_CARL9170_WPC
 	err = carl9170_register_wps_button(ar);