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>

1 files changed, 4 insertions, 15 deletions

diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index 22f29d75947e..8df5836cc99c 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);
-                }
         }
 }