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openwrt-xburst/package/mac80211/patches/540-mac80211_tx_optimization.patch

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mac80211: significantly reduce the cpu load caused by excessive skb header cloning git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24669 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-12-18 19:23:38 +02:00
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1549,8 +1549,10 @@ static int ieee80211_skb_resize(struct i
if (skb_header_cloned(skb))
I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
- else
+ else if (head_need || tail_need)
I802_DEBUG_INC(local->tx_expand_skb_head);
+ else
mac80211: fix a missing return value git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24671 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-12-18 19:40:09 +02:00
+ return 0;
mac80211: significantly reduce the cpu load caused by excessive skb header cloning git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24669 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-12-18 19:23:38 +02:00
if (pskb_expand_head(skb, head_need, tail_need, GFP_ATOMIC)) {
wiphy_debug(local->hw.wiphy,
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