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[PATCH] mac80211: don't update dev->trans_start

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From: Johannes Berg <johannes.berg@xxxxxxxxx>

This isn't necessary any more as the stack will automatically
update the TXQ's trans_start after calling ndo_start_xmit().

Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
 net/mac80211/tx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index df62942653ad..83e3261dbf67 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2729,7 +2729,6 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
 
 	dev->stats.tx_packets++;
 	dev->stats.tx_bytes += skb->len + extra_head;
-	dev->trans_start = jiffies;
 
 	/* will not be crypto-handled beyond what we do here, so use false
 	 * as the may-encrypt argument for the resize to not account for
@@ -2912,7 +2911,6 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb,
 
 		dev->stats.tx_packets++;
 		dev->stats.tx_bytes += skb->len;
-		dev->trans_start = jiffies;
 
 		ieee80211_xmit(sdata, sta, skb);
 	}
-- 
2.1.4

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