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r8169: Preserve other Device Control bits when setting NOSNOOP_EN 

Previously, when we turned on the "Enable No Snoop Bit," we cleared all
the other Device Control bits, including error reporting enables,
Max_Payload_Size, Max_Read_Request_Size, etc.  This patch preserves
all the other bits.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2012-08-22 10:29:42 -06:00
parent 7d7903b2a2
commit 8200bc72a8
1 changed files with 2 additions and 2 deletions
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2
drivers/net/ethernet/realtek/r8169.c
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@ -5385,7 +5385,7 @@ static void rtl_hw_start_8101(struct net_device *dev)
if (tp->mac_version == RTL_GIGA_MAC_VER_13 ||
tp->mac_version == RTL_GIGA_MAC_VER_16)
pcie_capability_write_word(pdev, PCI_EXP_DEVCTL,
pcie_capability_set_word(pdev, PCI_EXP_DEVCTL,
PCI_EXP_DEVCTL_NOSNOOP_EN);
RTL_W8(Cfg9346, Cfg9346_Unlock);