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Message-Id: <1165235217.4525.100.camel@fuzzie.sanpeople.com>
Date:	04 Dec 2006 14:26:57 +0200
From:	Andrew Victor <andrew@...people.com>
To:	netdev@...r.kernel.org
Cc:	jgarzik@...ox.com
Subject: [PATCH 2.6.19] AT91RM9200 Ethernet update 1

This patch is an update to the Atmel AT91RM9200 Ethernet driver.

1. Remove the global 'at91_dev' variable. 
2. Move the global 'check_timer' variable into the private data
structure.


Signed-off-by: Andrew Victor <andrew@...people.com>


diff -urN linux-2.6.19-final.orig/drivers/net/arm/at91_ether.c linux-2.6.19-final/drivers/net/arm/at91_ether.c
--- linux-2.6.19-final.orig/drivers/net/arm/at91_ether.c	Sat Dec  2 17:28:27 2006
+++ linux-2.6.19-final/drivers/net/arm/at91_ether.c	Mon Dec  4 14:13:01 2006
@@ -41,9 +41,6 @@
 #define DRV_NAME	"at91_ether"
 #define DRV_VERSION	"1.0"
 
-static struct net_device *at91_dev;
-
-static struct timer_list check_timer;
 #define LINK_POLL_INTERVAL	(HZ)
 
 /* ..................................................................... */
@@ -252,8 +249,8 @@
 		 * PHY doesn't have an IRQ pin (RTL8201, DP83847, AC101L),
 		 * or board does not have it connected.
 		 */
-		check_timer.expires = jiffies + LINK_POLL_INTERVAL;
-		add_timer(&check_timer);
+		lp->check_timer.expires = jiffies + LINK_POLL_INTERVAL;
+		add_timer(&lp->check_timer);
 		return;
 	}
 
@@ -300,7 +297,7 @@
 
 	irq_number = lp->board_data.phy_irq_pin;
 	if (!irq_number) {
-		del_timer_sync(&check_timer);
+		del_timer_sync(&lp->check_timer);
 		return;
 	}
 
@@ -362,13 +359,14 @@
 static void at91ether_check_link(unsigned long dev_id)
 {
 	struct net_device *dev = (struct net_device *) dev_id;
+	struct at91_private *lp = (struct at91_private *) dev->priv;
 
 	enable_mdi();
 	update_linkspeed(dev, 1);
 	disable_mdi();
 
-	check_timer.expires = jiffies + LINK_POLL_INTERVAL;
-	add_timer(&check_timer);
+	lp->check_timer.expires = jiffies + LINK_POLL_INTERVAL;
+	add_timer(&lp->check_timer);
 }
 
 /* ......................... ADDRESS MANAGEMENT ........................ */
@@ -939,9 +937,6 @@
 	unsigned int val;
 	int res;
 
-	if (at91_dev)			/* already initialized */
-		return 0;
-
 	dev = alloc_etherdev(sizeof(struct at91_private));
 	if (!dev)
 		return -ENOMEM;
@@ -1024,7 +1019,6 @@
 		dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);
 		return res;
 	}
-	at91_dev = dev;
 
 	/* Determine current link speed */
 	spin_lock_irq(&lp->lock);
@@ -1036,9 +1030,9 @@
 
 	/* If board has no PHY IRQ, use a timer to poll the PHY */
 	if (!lp->board_data.phy_irq_pin) {
-		init_timer(&check_timer);
-		check_timer.data = (unsigned long)dev;
-		check_timer.function = at91ether_check_link;
+		init_timer(&lp->check_timer);
+		lp->check_timer.data = (unsigned long)dev;
+		lp->check_timer.function = at91ether_check_link;
 	}
 
 	/* Display ethernet banner */
@@ -1115,15 +1109,16 @@
 
 static int __devexit at91ether_remove(struct platform_device *pdev)
 {
-	struct at91_private *lp = (struct at91_private *) at91_dev->priv;
+	struct net_device *dev = platform_get_drvdata(pdev);
+	struct at91_private *lp = (struct at91_private *) dev->priv;
 
-	unregister_netdev(at91_dev);
-	free_irq(at91_dev->irq, at91_dev);
+	unregister_netdev(dev);
+	free_irq(dev->irq, dev);
 	dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);
 	clk_put(lp->ether_clk);
 
-	free_netdev(at91_dev);
-	at91_dev = NULL;
+	platform_set_drvdata(pdev, NULL);
+	free_netdev(dev);
 	return 0;
 }
 
@@ -1131,8 +1126,8 @@
 
 static int at91ether_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
-	struct at91_private *lp = (struct at91_private *) at91_dev->priv;
 	struct net_device *net_dev = platform_get_drvdata(pdev);
+	struct at91_private *lp = (struct at91_private *) net_dev->priv;
 	int phy_irq = lp->board_data.phy_irq_pin;
 
 	if (netif_running(net_dev)) {
@@ -1149,8 +1144,8 @@
 
 static int at91ether_resume(struct platform_device *pdev)
 {
-	struct at91_private *lp = (struct at91_private *) at91_dev->priv;
 	struct net_device *net_dev = platform_get_drvdata(pdev);
+	struct at91_private *lp = (struct at91_private *) net_dev->priv;
 	int phy_irq = lp->board_data.phy_irq_pin;
 
 	if (netif_running(net_dev)) {
diff -urN linux-2.6.19-final.orig/drivers/net/arm/at91_ether.h linux-2.6.19-final/drivers/net/arm/at91_ether.h
--- linux-2.6.19-final.orig/drivers/net/arm/at91_ether.h	Sat Dec  2 17:26:41 2006
+++ linux-2.6.19-final/drivers/net/arm/at91_ether.h	Mon Dec  4 14:12:30 2006
@@ -87,6 +87,7 @@
 	spinlock_t lock;			/* lock for MDI interface */
 	short phy_media;			/* media interface type */
 	unsigned short phy_address;		/* 5-bit MDI address of PHY (0..31) */
+	struct timer_list check_timer;		/* Poll link status */
 
 	/* Transmit */
 	struct sk_buff *skb;			/* holds skb until xmit interrupt completes */



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