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mac80211: use offchannel queue only when supported

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Commit 3a25a8c ("mac80211: add improved HW queue control")
added support for offchannel queue mapping. However, this
mapping is only valid when the driver supports
IEEE80211_HW_QUEUE_CONTROL.

Check whether the driver supports IEEE80211_HW_QUEUE_CONTROL
before setting the hw_queue to the mapped offchannel queue.

(This patch doesn't have any actual effect, because
hw_queue is overridden in ieee80211_tx() anyway,
so this is merely some cleanup)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Eliad Peller 2012-05-13 16:47:05 +03:00 committed by John W. Linville
parent 72d7872852
commit c53f7e150e
1 changed files with 5 additions and 3 deletions
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8
net/mac80211/cfg.c
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@ -2304,7 +2304,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
IEEE80211_SKB_CB(skb)->flags = flags;
if (flags & IEEE80211_TX_CTL_TX_OFFCHAN)
if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL &&
flags & IEEE80211_TX_CTL_TX_OFFCHAN)
IEEE80211_SKB_CB(skb)->hw_queue =
local->hw.offchannel_tx_hw_queue;
@ -2349,8 +2350,9 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
/* modify cookie to prevent API mismatches */
*cookie ^= 2;
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
IEEE80211_SKB_CB(skb)->hw_queue =
local->hw.offchannel_tx_hw_queue;
if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
IEEE80211_SKB_CB(skb)->hw_queue =
local->hw.offchannel_tx_hw_queue;
local->hw_roc_skb = skb;
local->hw_roc_skb_for_status = skb;
mutex_unlock(&local->mtx);