linux-kernel - [PATCH 5.4 40/46] r8169: fix resume on cable plug-in

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Message-Id: <20191203212802.666805566@linuxfoundation.org>
Date:   Tue,  3 Dec 2019 23:36:00 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, jhdskag3 <jhdskag3@...anota.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 5.4 40/46] r8169: fix resume on cable plug-in

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

[ Upstream commit 398fd408ccfb5e44b1cbe73a209d2281d3efa83c ]

It was reported [0] that network doesn't wake up on cable plug-in with
certain chip versions. Reason is that on these chip versions the PHY
doesn't detect cable plug-in when being in power-down mode. So prevent
the PHY from powering down if WoL is enabled.

[0] https://bugzilla.kernel.org/show_bug.cgi?id=202103

Fixes: 95fb8bb3181b ("net: phy: force phy suspend when calling phy_stop")
Reported-by: jhdskag3 <jhdskag3@...anota.com>
Tested-by: jhdskag3 <jhdskag3@...anota.com>
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/realtek/r8169_main.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -1516,6 +1516,7 @@ static void __rtl8169_set_wol(struct rtl
 	rtl_lock_config_regs(tp);
 
 	device_set_wakeup_enable(tp_to_dev(tp), wolopts);
+	tp->dev->wol_enabled = wolopts ? 1 : 0;
 }
 
 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)