From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 9 Apr 2010 12:06:06 +0000 (+0000)
Subject: backfire: ar71xx: ag71xx: avoid unalinged accesses when using the phy specific receiv... 
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=10c8998f6978a71610770ae3aed91beb3fd09824;p=openwrt%2Fsvn-archive%2Farchive.git

backfire: ar71xx: ag71xx: avoid unalinged accesses when using the phy specific receive functions (backport of r20751)


SVN-Revision: 20760
---

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
index 77551dd625..af41972481 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
@@ -38,7 +38,7 @@
 #define ETH_FCS_LEN	4
 
 #define AG71XX_DRV_NAME		"ag71xx"
-#define AG71XX_DRV_VERSION	"0.5.34"
+#define AG71XX_DRV_VERSION	"0.5.35"
 
 #define AG71XX_NAPI_WEIGHT	64
 #define AG71XX_OOM_REFILL	(1 + HZ/10)
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index 27c19564fc..8d61294beb 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -764,6 +764,9 @@ static int ag71xx_rx_copy_skb(struct ag71xx *ag, struct sk_buff **pskb,
 {
 	struct sk_buff *copy_skb;
 
+	if (ag->phy_dev && (ag->phy_dev->pkt_align % 4) == 2)
+		goto keep;
+
 	copy_skb = netdev_alloc_skb(ag->dev, pktlen + NET_IP_ALIGN);
 	if (!copy_skb)
 		return -ENOMEM;
@@ -776,6 +779,10 @@ static int ag71xx_rx_copy_skb(struct ag71xx *ag, struct sk_buff **pskb,
 	*pskb = copy_skb;
 
 	return 0;
+
+ keep:
+	skb_put(*pskb, pktlen);
+	return 0;
 }
 
 static int ag71xx_rx_packets(struct ag71xx *ag, int limit)