r8169: do not bring device down when suspending
Stopping all activity through ChipCmd and blindly acking the irqs
is neither nice nor completely needed: the transition to low-power
mode does enough work and it apparently keeps the device in a sane
state.
Patch suggested by a fix for http://bugzilla.kernel.org/show_bug.cgi?id=9512
The rtl_shutdown path is kept unchanged so far.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Tested-by: Anders Eriksson <aeriksson@fastmail.fm>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 35196fa..4e22462 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -3811,22 +3811,11 @@
static void rtl8169_net_suspend(struct net_device *dev)
{
- struct rtl8169_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->mmio_addr;
-
if (!netif_running(dev))
return;
netif_device_detach(dev);
netif_stop_queue(dev);
-
- spin_lock_irq(&tp->lock);
-
- rtl8169_asic_down(ioaddr);
-
- rtl8169_rx_missed(dev, ioaddr);
-
- spin_unlock_irq(&tp->lock);
}
#ifdef CONFIG_PM
@@ -3876,9 +3865,17 @@
static void rtl_shutdown(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
+ struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
rtl8169_net_suspend(dev);
+ spin_lock_irq(&tp->lock);
+
+ rtl8169_asic_down(ioaddr);
+
+ spin_unlock_irq(&tp->lock);
+
if (system_state == SYSTEM_POWER_OFF) {
pci_wake_from_d3(pdev, true);
pci_set_power_state(pdev, PCI_D3hot);