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Commit a058a632 authored by Sathya Perla's avatar Sathya Perla Committed by David S. Miller
Browse files

be2net: a mini optimization in rx_compl_process() code 



Introduce unlikely() for skb alloc failure and vlanf checks...

Signed-off-by: default avatarSathya Perla <sathyap@serverengines.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent aa13bd6e

drivers/net/benet/be_main.c

+10 −10
Original line number Diff line number Diff line
@@ -768,16 +768,8 @@ static void be_rx_compl_process(struct be_adapter *adapter, 
	u32 vlanf, vid;

	u8 vtm;



	vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);

	vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);



	/* vlanf could be wrongly set in some cards.

	 * ignore if vtm is not set */

	if ((adapter->cap & 0x400) && !vtm)

		vlanf = 0;



	skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);

	if (!skb) {

	if (unlikely(!skb)) {

		if (net_ratelimit())

			dev_warn(&adapter->pdev->dev, "skb alloc failed\n");

		be_rx_compl_discard(adapter, rxcp);
@@ -795,7 +787,15 @@ static void be_rx_compl_process(struct be_adapter *adapter, 
	skb->protocol = eth_type_trans(skb, adapter->netdev);

	skb->dev = adapter->netdev;



	if (vlanf) {

	vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);

	vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);



	/* vlanf could be wrongly set in some cards.

	 * ignore if vtm is not set */

	if ((adapter->cap & 0x400) && !vtm)

		vlanf = 0;



	if (unlikely(vlanf)) {

		if (!adapter->vlan_grp || adapter->vlans_added == 0) {

			kfree_skb(skb);

			return;