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 (file)
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -3811,22 +3811,11 @@ static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
 
 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 struct dev_pm_ops rtl8169_pm_ops = {
 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);