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: (34 commits)
  net: fix build erros with CONFIG_BUG=n, CONFIG_GENERIC_BUG=n
  ipv6: skb_dst() can be NULL in ipv6_hop_jumbo().
  tg3: Update copyright and driver version
  tg3: Disable 5717 serdes and B0 support
  tg3: Add reliable serdes detection for 5717 A0
  tg3: Fix std rx prod ring handling
  tg3: Fix std prod ring nicaddr for 5787 and 57765
  sfc: Fix conditions for MDIO self-test
  sfc: Fix polling for slow MCDI operations
  e1000e: workaround link issues on busy hub in half duplex on 82577/82578
  e1000e: MDIO slow mode should always be done for 82577
  ixgbe: update copyright dates
  ixgbe: Do not attempt to perform interrupts in netpoll when down
  cfg80211: fix refcount imbalance when wext is disabled
  mac80211: fix queue selection for data frames on monitor interfaces
  iwlwifi: silence buffer overflow warning
  iwlwifi: disable tx on beacon update notification
  iwlwifi: fix iwl_queue_used bug when read_ptr == write_ptr
  mac80211: fix endian error
  mac80211: add missing sanity checks for action frames
  ...

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 06c43ca39bf8..265e66dba552 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -686,7 +686,17 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
         /*
          * Initialize extra TX headroom required.
          */
-        rt2x00dev->hw->extra_tx_headroom = rt2x00dev->ops->extra_tx_headroom;
+        rt2x00dev->hw->extra_tx_headroom =
+                max_t(unsigned int, IEEE80211_TX_STATUS_HEADROOM,
+                      rt2x00dev->ops->extra_tx_headroom);
+
+        /*
+         * Take TX headroom required for alignment into account.
+         */
+        if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags))
+                rt2x00dev->hw->extra_tx_headroom += RT2X00_L2PAD_SIZE;
+        else if (test_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags))
+                rt2x00dev->hw->extra_tx_headroom += RT2X00_ALIGN_SIZE;
 
         /*
          * Register HW.