netdev: Do not use TX lock to protect address lists.

Now that we have a specific lock to protect the network
device unicast and multicast lists, remove extraneous
grabs of the TX lock in cases where the code only needs
address list protection.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 6 insertions, 12 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 095b7d928d64..af0056e7e5b3 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -291,11 +291,9 @@ static int ieee80211_open(struct net_device *dev)
                 if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
                         local->fif_other_bss++;
 
-                netif_tx_lock_bh(local->mdev);
-                netif_addr_lock(local->mdev);
+                netif_addr_lock_bh(local->mdev);
                 ieee80211_configure_filter(local);
-                netif_addr_unlock(local->mdev);
-                netif_tx_unlock_bh(local->mdev);
+                netif_addr_unlock_bh(local->mdev);
                 break;
         case IEEE80211_IF_TYPE_STA:
         case IEEE80211_IF_TYPE_IBSS:
@@ -492,11 +490,9 @@ static int ieee80211_stop(struct net_device *dev)
                 if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
                         local->fif_other_bss--;
 
-                netif_tx_lock_bh(local->mdev);
-                netif_addr_lock(local->mdev);
+                netif_addr_lock_bh(local->mdev);
                 ieee80211_configure_filter(local);
-                netif_addr_unlock(local->mdev);
-                netif_tx_unlock_bh(local->mdev);
+                netif_addr_unlock_bh(local->mdev);
                 break;
         case IEEE80211_IF_TYPE_MESH_POINT:
         case IEEE80211_IF_TYPE_STA:
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1232ba25e1e9..d7c371e36bf0 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -4064,16 +4064,14 @@ static int ieee80211_sta_start_scan(struct net_device *dev,
         local->scan_band = IEEE80211_BAND_2GHZ;
         local->scan_dev = dev;
 
-        netif_tx_lock_bh(local->mdev);
-        netif_addr_lock(local->mdev);
+        netif_addr_lock_bh(local->mdev);
         local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
         local->ops->configure_filter(local_to_hw(local),
                                      FIF_BCN_PRBRESP_PROMISC,
                                      &local->filter_flags,
                                      local->mdev->mc_count,
                                      local->mdev->mc_list);
-        netif_addr_unlock(local->mdev);
-        netif_tx_unlock_bh(local->mdev);
+        netif_addr_unlock_bh(local->mdev);
 
         /* TODO: start scan as soon as all nullfunc frames are ACKed */
         queue_delayed_work(local->hw.workqueue, &local->scan_work,