---

yaml
---
r: 41451
b: refs/heads/master
c: 3c3070d
h: refs/heads/master
i:
  41449: efa6c9c
  41447: 9be948a
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 13df29f69749a61b5209d52b71fcbf7300e5d6fb
+refs/heads/master: 3c3070d713d798f7f9e7ee3614e49b47655d14d8

trunk/drivers/net/phy/phy.c

@@ -7,6 +7,7 @@
  * Author: Andy Fleming
  *
  * Copyright (c) 2004 Freescale Semiconductor, Inc.
+ * Copyright (c) 2006  Maciej W. Rozycki
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -32,6 +33,8 @@
 #include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/phy.h>
+#include <linux/timer.h>
+#include <linux/workqueue.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -484,6 +487,9 @@ static irqreturn_t phy_interrupt(int irq, void *phy_dat)
 {
 	struct phy_device *phydev = phy_dat;
 
+	if (PHY_HALTED == phydev->state)
+		return IRQ_NONE;		/* It can't be ours.  */
+
 	/* The MDIO bus is not allowed to be written in interrupt
 	 * context, so we need to disable the irq here.  A work
 	 * queue will write the PHY to disable and clear the
@@ -577,6 +583,13 @@ int phy_stop_interrupts(struct phy_device *phydev)
 	if (err)
 		phy_error(phydev);
 
+	/*
+	 * Finish any pending work; we might have been scheduled
+	 * to be called from keventd ourselves, though.
+	 */
+	if (!current_is_keventd())
+		flush_scheduled_work();
+
 	free_irq(phydev->irq, phydev);
 
 	return err;
@@ -603,7 +616,8 @@ static void phy_change(void *data)
 	enable_irq(phydev->irq);
 
 	/* Reenable interrupts */
-	err = phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED);
+	if (PHY_HALTED != phydev->state)
+		err = phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED);
 
 	if (err)
 		goto irq_enable_err;
@@ -624,18 +638,24 @@ void phy_stop(struct phy_device *phydev)
 	if (PHY_HALTED == phydev->state)
 		goto out_unlock;
 
-	if (phydev->irq != PHY_POLL) {
-		/* Clear any pending interrupts */
-		phy_clear_interrupt(phydev);
+	phydev->state = PHY_HALTED;
 
+	if (phydev->irq != PHY_POLL) {
 		/* Disable PHY Interrupts */
 		phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED);
-	}
 
-	phydev->state = PHY_HALTED;
+		/* Clear any pending interrupts */
+		phy_clear_interrupt(phydev);
+	}
 
 out_unlock:
 	spin_unlock(&phydev->lock);
+
+	/*
+	 * Cannot call flush_scheduled_work() here as desired because
+	 * of rtnl_lock(), but PHY_HALTED shall guarantee phy_change()
+	 * will not reenable interrupts.
+	 */
 }