linux/debian/patches/bugfix/net-r8169-hotplug_loop.patch

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From netdev-owner@vger.kernel.org Fri Oct 13 07:35:57 2006
Date: Thu, 12 Oct 2006 22:30:46 +0200
From: Francois Romieu <romieu@fr.zoreil.com>
Arnaud Patard:
r8169: fix infinite loop during hotplug
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 4c47c5b..c2c9a86 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2701,6 +2702,7 @@ static void rtl8169_down(struct net_devi
struct rtl8169_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
unsigned int poll_locked = 0;
+ unsigned int intrmask;
rtl8169_delete_timer(dev);
@@ -2739,8 +2741,11 @@ core_down:
* 2) dev->change_mtu
* -> rtl8169_poll can not be issued again and re-enable the
* interruptions. Let's simply issue the IRQ down sequence again.
+ *
+ * No loop if hotpluged or major error (0xffff).
*/
- if (RTL_R16(IntrMask))
+ intrmask = RTL_R16(IntrMask);
+ if (intrmask && (intrmask != 0xffff))
goto core_down;
rtl8169_tx_clear(tp);
--
Ueimor