linux-kernel - [PATCH 4.14 097/159] phylink: ensure we take the link down when phylink

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Date:   Fri, 23 Feb 2018 19:26:45 +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, Florian Fainelli <f.fainelli@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.14 097/159] phylink: ensure we take the link down when phylink_stop() is called

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Russell King <rmk+kernel@...linux.org.uk>


[ Upstream commit 2012b7d6b2868c532f22d9172c8b24611637eb48 ]

Ensure that we tell the MAC to take the link down when phylink_stop()
is called, and that this completes prior to phylink_stop() returns.

Reported-by: Florian Fainelli <f.fainelli@...il.com>
Tested-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/phy/phylink.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -772,6 +772,7 @@ void phylink_stop(struct phylink *pl)
 		sfp_upstream_stop(pl->sfp_bus);
 
 	set_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state);
+	queue_work(system_power_efficient_wq, &pl->resolve);
 	flush_work(&pl->resolve);
 }
 EXPORT_SYMBOL_GPL(phylink_stop);