linux-kernel - [PATCH net v4] net: mvpp2: fix the phylink mode validation

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Date:   Wed, 19 Dec 2018 18:00:12 +0100
From:   Antoine Tenart <antoine.tenart@...tlin.com>
To:     davem@...emloft.net, linux@...linux.org.uk
Cc:     Antoine Tenart <antoine.tenart@...tlin.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        thomas.petazzoni@...tlin.com, maxime.chevallier@...tlin.com,
        gregory.clement@...tlin.com, miquel.raynal@...tlin.com,
        nadavh@...vell.com, stefanc@...vell.com, ymarkman@...vell.com,
        mw@...ihalf.com
Subject: [PATCH net v4] net: mvpp2: fix the phylink mode validation

The mvpp2_phylink_validate() sets all modes that are supported by a
given PPv2 port. An mistake made the 10000baseT_Full mode being
advertised in some cases when a port wasn't configured to perform at
10G. This patch fixes this.

Fixes: d97c9f4ab000 ("net: mvpp2: 1000baseX support")
Reported-by: Russell King <linux@...linux.org.uk>
Signed-off-by: Antoine Tenart <antoine.tenart@...tlin.com>
---

Since v3:
  - Rebase on top of net/master.

Since v2, v1:
  - N/A.

 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 88aa488054a8..f1dab0b55769 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4406,6 +4406,7 @@ static void mvpp2_phylink_validate(struct net_device *dev,
 	case PHY_INTERFACE_MODE_XAUI:
 	case PHY_INTERFACE_MODE_NA:
 		if (port->gop_id == 0) {
+			phylink_set(mask, 10000baseT_Full);
 			phylink_set(mask, 10000baseCR_Full);
 			phylink_set(mask, 10000baseSR_Full);
 			phylink_set(mask, 10000baseLR_Full);
@@ -4423,7 +4424,6 @@ static void mvpp2_phylink_validate(struct net_device *dev,
 		phylink_set(mask, 10baseT_Full);
 		phylink_set(mask, 100baseT_Half);
 		phylink_set(mask, 100baseT_Full);
-		phylink_set(mask, 10000baseT_Full);
 		/* Fall-through */
 	case PHY_INTERFACE_MODE_1000BASEX:
 	case PHY_INTERFACE_MODE_2500BASEX:
-- 
2.19.2