Merge branch 'x86/core' into cpus4096

1 files changed, 19 insertions, 6 deletions

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index efcbeb6c867..9831b3f408a 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -351,6 +351,9 @@ static int gfar_probe(struct of_device *ofdev,
 	/* Reset MAC layer */
 	gfar_write(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
 
+	/* We need to delay at least 3 TX clocks */
+	udelay(2);
+
 	tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
 	gfar_write(&priv->regs->maccfg1, tempval);
 
@@ -1281,7 +1284,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	spin_lock_irqsave(&priv->txlock, flags);
 
 	/* check if there is space to queue this packet */
-	if (nr_frags > priv->num_txbdfree) {
+	if ((nr_frags+1) > priv->num_txbdfree) {
 		/* no space, stop the queue */
 		netif_stop_queue(dev);
 		dev->stats.tx_fifo_errors++;
@@ -1423,15 +1426,11 @@ static void gfar_vlan_rx_register(struct net_device *dev,
 {
 	struct gfar_private *priv = netdev_priv(dev);
 	unsigned long flags;
-	struct vlan_group *old_grp;
 	u32 tempval;
 
 	spin_lock_irqsave(&priv->rxlock, flags);
 
-	old_grp = priv->vlgrp;
-
-	if (old_grp == grp)
-		return;
+	priv->vlgrp = grp;
 
 	if (grp) {
 		/* Enable VLAN tag insertion */
@@ -1622,10 +1621,24 @@ static int gfar_clean_tx_ring(struct net_device *dev)
 static void gfar_schedule_cleanup(struct net_device *dev)
 {
 	struct gfar_private *priv = netdev_priv(dev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->txlock, flags);
+	spin_lock(&priv->rxlock);
+
 	if (netif_rx_schedule_prep(&priv->napi)) {
 		gfar_write(&priv->regs->imask, IMASK_RTX_DISABLED);
 		__netif_rx_schedule(&priv->napi);
+	} else {
+		/*
+		 * Clear IEVENT, so interrupts aren't called again
+		 * because of the packets that have already arrived.
+		 */
+		gfar_write(&priv->regs->ievent, IEVENT_RTX_MASK);
 	}
+
+	spin_unlock(&priv->rxlock);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 }
 
 /* Interrupt Handler for Transmit complete */