From: Matt Carlson <mcarlson@broadcom.com>
Date: Mon, 5 Apr 2010 10:19:20 +0000 (+0000)
Subject: tg3: Restore likely() check in tg3_poll_msix()
X-Git-Tag: v2.6.35-rc1~473^2~577
X-Git-Url: https://bbs.cooldavid.org/git/?p=net-next-2.6.git;a=commitdiff_plain;h=6d40db7beaef823621ff3d340ef53d08445960b4

tg3: Restore likely() check in tg3_poll_msix()

When creating the new tg3_poll_msix() function, the likely() compiler
hint was dropped.  This patch reintroduces it.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index aff11f84f52..4c71f3efe07 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -4987,8 +4987,8 @@ static int tg3_poll_msix(struct napi_struct *napi, int budget)
 		rmb();
 
 		/* check for RX/TX work to do */
-		if (sblk->idx[0].tx_consumer == tnapi->tx_cons &&
-		    *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr) {
+		if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
+			   *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
 			napi_complete(napi);
 			/* Reenable interrupts. */
 			tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);