forcedeth: optimize the xmit with unlikely
In xmit, it is very impossible that TX_ERROR occurs. So using unlikely optimizes the xmit process. CC: Srinivas Eeda <srinivas.eeda@oracle.com> CC: Joe Jin <joe.jin@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -2563,7 +2563,7 @@ static int nv_tx_done(struct net_device *dev, int limit)
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if (np->desc_ver == DESC_VER_1) {
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if (flags & NV_TX_LASTPACKET) {
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if (flags & NV_TX_ERROR) {
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if (unlikely(flags & NV_TX_ERROR)) {
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if ((flags & NV_TX_RETRYERROR)
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&& !(flags & NV_TX_RETRYCOUNT_MASK))
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nv_legacybackoff_reseed(dev);
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@ -2580,7 +2580,7 @@ static int nv_tx_done(struct net_device *dev, int limit)
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}
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} else {
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if (flags & NV_TX2_LASTPACKET) {
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if (flags & NV_TX2_ERROR) {
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if (unlikely(flags & NV_TX2_ERROR)) {
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if ((flags & NV_TX2_RETRYERROR)
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&& !(flags & NV_TX2_RETRYCOUNT_MASK))
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nv_legacybackoff_reseed(dev);
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@ -2626,7 +2626,7 @@ static int nv_tx_done_optimized(struct net_device *dev, int limit)
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nv_unmap_txskb(np, np->get_tx_ctx);
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if (flags & NV_TX2_LASTPACKET) {
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if (flags & NV_TX2_ERROR) {
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if (unlikely(flags & NV_TX2_ERROR)) {
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if ((flags & NV_TX2_RETRYERROR)
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&& !(flags & NV_TX2_RETRYCOUNT_MASK)) {
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if (np->driver_data & DEV_HAS_GEAR_MODE)
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