netdev - [PATCH] net: phy: don't reschedule state machine when PHY is halted

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Message-ID: <d32d4101-03cb-df57-66d2-29e9a17fc2c5@gmail.com>
Date:   Tue, 18 Sep 2018 21:12:14 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH] net: phy: don't reschedule state machine when PHY is halted

I think I've seen a similar or same patch before, not sure why it
didn't make it yet. When being in state PHY_HALTED we don't have to
reschedule the state machine, phy_start() will start it again.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/phy/phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 1ee25877c..c78203b25 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1123,7 +1123,7 @@ void phy_state_machine(struct work_struct *work)
 	 * PHY, if PHY_IGNORE_INTERRUPT is set, then we will be moving
 	 * between states from phy_mac_interrupt()
 	 */
-	if (phy_polling_mode(phydev))
+	if (phy_polling_mode(phydev) && old_state != PHY_HALTED)
 		queue_delayed_work(system_power_efficient_wq, &phydev->state_queue,
 				   PHY_STATE_TIME * HZ);
 }
-- 
2.19.0