From: Gabor Juhos <juhosg@openwrt.org>
Date: Sun, 26 Feb 2012 10:54:13 +0000 (+0000)
Subject: ramips: don't read RAMIPS_RX_CALC_IDX0 register in the loop
X-Git-Tag: reboot~14719
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=72599f0c610cf73c91b2fa589d084ef44a4a4d00;p=openwrt%2Fstaging%2Fxback.git

ramips: don't read RAMIPS_RX_CALC_IDX0 register in the loop

SVN-Revision: 30733
---

diff --git a/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_main.c b/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_main.c
index 60001e3bc1..beceb9441e 100644
--- a/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_main.c
+++ b/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_main.c
@@ -717,13 +717,15 @@ ramips_eth_rx_hw(unsigned long ptr)
 	int rx;
 	int max_rx = 16;
 
+	rx = ramips_fe_rr(RAMIPS_RX_CALC_IDX0);
+
 	while (max_rx) {
 		struct raeth_rx_info *rxi;
 		struct ramips_rx_dma *rxd;
 		struct sk_buff *rx_skb, *new_skb;
 		int pktlen;
 
-		rx = (ramips_fe_rr(RAMIPS_RX_CALC_IDX0) + 1) % NUM_RX_DESC;
+		rx = (rx + 1) % NUM_RX_DESC;
 
 		rxi = &re->rx_info[rx];
 		rxd = rxi->rx_desc;