mac80211: use offchannel queue only when supported
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>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 495831e..7ad5423 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2304,7 +2304,8 @@
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 @@
/* 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);