openwrt/package/mac80211/patches/540-mac80211_tx_optimizatio...

15 lines
404 B
Diff

--- 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
+ return 0;
if (pskb_expand_head(skb, head_need, tail_need, GFP_ATOMIC)) {
wiphy_debug(local->hw.wiphy,