commit d7d0f081c48951018133cac38c8c0796f37db727
author Jussi Kivilinna <jussi.kivilinna@iki.fi> Sun Mar 17 11:59:18 2013 +0200
committer John W. Linville <linville@tuxdriver.com> Mon Mar 25 16:42:22 2013 -0400
tree a949ef9f9a2482efedc25745a2bff81eea2209a6
parent 872de8ff04922e4ad95c5af39131ae9fbefe6ac5

rtlwifi: usb: remove extra skb copy on RX path

RX path has extra copying of packets, that can be avoided.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/usb.c

diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index 22f29d7..8df5836 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -513,22 +513,11 @@
 			if (unicast)
 				rtlpriv->link_info.num_rx_inperiod++;
 		}
-		if (likely(rtl_action_proc(hw, skb, false))) {
-			struct sk_buff *uskb = NULL;
-			u8 *pdata;
 
-			uskb = dev_alloc_skb(skb->len + 128);
-			if (uskb) {	/* drop packet on allocation failure */
-				memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status,
-				       sizeof(rx_status));
-				pdata = (u8 *)skb_put(uskb, skb->len);
-				memcpy(pdata, skb->data, skb->len);
-				ieee80211_rx_irqsafe(hw, uskb);
-			}
+		if (likely(rtl_action_proc(hw, skb, false)))
+			ieee80211_rx_irqsafe(hw, skb);
+		else
 			dev_kfree_skb_any(skb);
-		} else {
-			dev_kfree_skb_any(skb);
-		}
 	}
 }