netdev - [PATCH] net: phy: unmask link partner capabilities

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Message-ID: <1392999496-29753-1-git-send-email-cristian.bercaru@freescale.com>
Date:	Fri, 21 Feb 2014 18:18:16 +0200
From:	<cristian.bercaru@...escale.com>
To:	<netdev@...r.kernel.org>
CC:	Cristian Bercaru <cristian.bercaru@...escale.com>,
	<madalin.bucur@...escale.com>, <shaohui.xie@...escale.com>,
	<shruti@...escale.com>
Subject: [PATCH] net: phy: unmask link partner capabilities

From: Cristian Bercaru <cristian.bercaru@...escale.com>

Masking the link partner's capabilities with local capabilities can be
misleading in autonegotiation scenarios such as PAUSE frame
autonegotiation.
Therefore, this patch unmasks the link partner's capabilities.

Signed-off-by: Cristian Bercaru <cristian.bercaru@...escale.com>
---
 drivers/net/phy/phy_device.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index a70b604..e57825e6 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -967,8 +967,6 @@ int genphy_read_status(struct phy_device *phydev)
 		if (adv < 0)
 			return adv;
 
-		lpa &= adv;
-
 		phydev->speed = SPEED_10;
 		phydev->duplex = DUPLEX_HALF;
 		phydev->pause = 0;
@@ -979,13 +977,13 @@ int genphy_read_status(struct phy_device *phydev)
 
 			if (lpagb & LPA_1000FULL)
 				phydev->duplex = DUPLEX_FULL;
-		} else if (lpa & (LPA_100FULL | LPA_100HALF)) {
+		} else if (lpa & adv & (LPA_100FULL | LPA_100HALF)) {
 			phydev->speed = SPEED_100;
 
-			if (lpa & LPA_100FULL)
+			if (lpa & adv & LPA_100FULL)
 				phydev->duplex = DUPLEX_FULL;
 		} else
-			if (lpa & LPA_10FULL)
+			if (lpa & adv & LPA_10FULL)
 				phydev->duplex = DUPLEX_FULL;
 
 		if (phydev->duplex == DUPLEX_FULL) {
-- 
1.7.11.7


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