[PATCH 5.7 103/166] net: macb: fix macb_suspend() by removing call to netif_carrier_off()

From: Greg Kroah-Hartman
Date: Tue Jul 14 2020 - 15:03:19 EST


From: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>

[ Upstream commit 64febc5e56c9a748162f206dcc5be1a44436087a ]

As we now use the phylink call to phylink_stop() in the non-WoL path,
there is no need for this call to netif_carrier_off() anymore. It can
disturb the underlying phylink FSM.

Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Cc: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Cc: Harini Katakam <harini.katakam@xxxxxxxxxx>
Cc: Antoine Tenart <antoine.tenart@xxxxxxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/cadence/macb_main.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 79c2fe0543038..548815255e22b 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4604,7 +4604,6 @@ static int __maybe_unused macb_suspend(struct device *dev)
bp->pm_data.scrt2 = gem_readl_n(bp, ETHT, SCRT2_ETHT);
}

- netif_carrier_off(netdev);
if (bp->ptp_info)
bp->ptp_info->ptp_remove(netdev);
pm_runtime_force_suspend(dev);
--
2.25.1