diff mbox

[2/4] rtlwifi: usb: remove extra skb copy on RX path

Message ID 20130317095918.24983.57848.stgit@localhost6.localdomain6 (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Jussi Kivilinna March 17, 2013, 9:59 a.m. UTC 
RX path has extra copying of packets, that can be avoided.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
---
 drivers/net/wireless/rtlwifi/usb.c |   19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)


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diff mbox

Patch

diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index 146d2b4..8563818 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -513,22 +513,11 @@  static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
 			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);
-			}
-			dev_kfree_skb_any(skb);
-		} else {
+
+		if (likely(rtl_action_proc(hw, skb, false)))
+			ieee80211_rx_irqsafe(hw, skb);
+		else
 			dev_kfree_skb_any(skb);
-		}
 	}
 }