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Commit d7d0f081 authored by Jussi Kivilinna's avatar Jussi Kivilinna Committed by John W. Linville
Browse files

rtlwifi: usb: remove extra skb copy on RX path 



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

Signed-off-by: default avatarJussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 872de8ff

drivers/net/wireless/rtlwifi/usb.c

+4 −15
Original line number Diff line number Diff line
@@ -513,24 +513,13 @@ 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);

	}

}

}



static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)

{