netdev - [PATCH] r8169: remember WOL preferences on driver load

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Message-Id: <1376730002-9235-1-git-send-email-lekensteyn@gmail.com>
Date:	Sat, 17 Aug 2013 11:00:02 +0200
From:	Peter Wu <lekensteyn@...il.com>
To:	netdev@...r.kernel.org
Cc:	nic_swsd <nic_swsd@...ltek.com>,
	Hayes Wang <hayeswang@...ltek.com>,
	Francois Romieu <romieu@...zoreil.com>, lekensteyn@...il.com
Subject: [PATCH] r8169: remember WOL preferences on driver load

From: Peter Wu <lekensteyn@...il.com>

Do not clear Broadcast/Multicast/Unicast Wake Flag or LanWake in
Config5. This is necessary to preserve WOL state when the driver is
loaded. Although the r8168 vendor driver does not write Config5 (it has
been commented out), Hayes Wang from Realtek said that masking bits like
this is more sensible.

Signed-off-by: Peter Wu <lekensteyn@...il.com>
---
 drivers/net/ethernet/realtek/r8169.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 2943916..104eaef 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -7092,7 +7092,7 @@ rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	RTL_W8(Cfg9346, Cfg9346_Unlock);
 	RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
-	RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
+	RTL_W8(Config5, RTL_R8(Config5) & (BWF | MWF | UWF | LanWake | PMEStatus));
 	if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
 		tp->features |= RTL_FEATURE_WOL;
 	if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
-- 
1.8.3.4

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