Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=99f252b097a3bd6280047ba2175b605671da4a23
Commit: 99f252b097a3bd6280047ba2175b605671da4a23
Parent: cda22aa94d3fe3942476b3652b8b92c653b96ee3
Author: Francois Romieu <[EMAIL PROTECTED]>
AuthorDate: Mon Apr 2 22:59:59 2007 +0200
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Tue Apr 3 22:31:10 2007 -0400
r8169: issue request_irq after the private data are completely initialized
The irq handler schedules a NAPI poll request unconditionally as soon as
the status register is not clean. It has been there - and wrong - for
ages but a recent timing change made it apparently easier to trigger.
Signed-off-by: Francois Romieu <[EMAIL PROTECTED]>
Cc: Jay Cliburn <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/net/r8169.c | 33 ++++++++++++++++++---------------
1 files changed, 18 insertions(+), 15 deletions(-)
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 521b5f0..60f630e 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -66,6 +66,7 @@ VERSION 2.2LK <2005/01/25>
#include <linux/init.h>
#include <linux/dma-mapping.h>
+#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -486,6 +487,7 @@ static int rtl8169_rx_interrupt(struct net_device *, struct
rtl8169_private *,
void __iomem *);
static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
static void rtl8169_down(struct net_device *dev);
+static void rtl8169_rx_clear(struct rtl8169_private *tp);
#ifdef CONFIG_R8169_NAPI
static int rtl8169_poll(struct net_device *dev, int *budget);
@@ -1751,16 +1753,10 @@ static int rtl8169_open(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);
struct pci_dev *pdev = tp->pci_dev;
- int retval;
+ int retval = -ENOMEM;
- rtl8169_set_rxbufsize(tp, dev);
-
- retval =
- request_irq(dev->irq, rtl8169_interrupt, IRQF_SHARED, dev->name,
dev);
- if (retval < 0)
- goto out;
- retval = -ENOMEM;
+ rtl8169_set_rxbufsize(tp, dev);
/*
* Rx and Tx desscriptors needs 256 bytes alignment.
@@ -1769,19 +1765,26 @@ static int rtl8169_open(struct net_device *dev)
tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
&tp->TxPhyAddr);
if (!tp->TxDescArray)
- goto err_free_irq;
+ goto out;
tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
&tp->RxPhyAddr);
if (!tp->RxDescArray)
- goto err_free_tx;
+ goto err_free_tx_0;
retval = rtl8169_init_ring(dev);
if (retval < 0)
- goto err_free_rx;
+ goto err_free_rx_1;
INIT_DELAYED_WORK(&tp->task, NULL);
+ smp_mb();
+
+ retval = request_irq(dev->irq, rtl8169_interrupt, IRQF_SHARED,
+ dev->name, dev);
+ if (retval < 0)
+ goto err_release_ring_2;
+
rtl8169_hw_start(dev);
rtl8169_request_timer(dev);
@@ -1790,14 +1793,14 @@ static int rtl8169_open(struct net_device *dev)
out:
return retval;
-err_free_rx:
+err_release_ring_2:
+ rtl8169_rx_clear(tp);
+err_free_rx_1:
pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
tp->RxPhyAddr);
-err_free_tx:
+err_free_tx_0:
pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
tp->TxPhyAddr);
-err_free_irq:
- free_irq(dev->irq, dev);
goto out;
}
-
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