linux-kernel - [PATCH 5.1 19/40] r8169: fix MAC address being lost in PCI D3

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Date:   Mon,  3 Jun 2019 11:09:12 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Heiner Kallweit <hkallweit1@...il.com>,
        Albert Astals Cid <aacid@....org>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 5.1 19/40] r8169: fix MAC address being lost in PCI D3

From: Heiner Kallweit <hkallweit1@...il.com>

[ Upstream commit 59715171fbd0172a579576f46821031800a63bc5 ]

(At least) RTL8168e forgets its MAC address in PCI D3. To fix this set
the MAC address when resuming. For resuming from runtime-suspend we
had this in place already, for resuming from S3/S5 it was missing.

The commit referenced as being fixed isn't wrong, it's just the first
one where the patch applies cleanly.

Fixes: 0f07bd850d36 ("r8169: use dev_get_drvdata where possible")
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
Reported-by: Albert Astals Cid <aacid@....org>
Tested-by: Albert Astals Cid <aacid@....org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/realtek/r8169.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -6914,6 +6914,8 @@ static int rtl8169_resume(struct device
 	struct net_device *dev = dev_get_drvdata(device);
 	struct rtl8169_private *tp = netdev_priv(dev);
 
+	rtl_rar_set(tp, dev->dev_addr);
+
 	clk_prepare_enable(tp->clk);
 
 	if (netif_running(dev))
@@ -6947,6 +6949,7 @@ static int rtl8169_runtime_resume(struct
 {
 	struct net_device *dev = dev_get_drvdata(device);
 	struct rtl8169_private *tp = netdev_priv(dev);
+
 	rtl_rar_set(tp, dev->dev_addr);
 
 	if (!tp->TxDescArray)