linux-kernel - [PATCH 3.12 086/104] igb: Don't let ethtool try to write to iNVM in i210/i211

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Date:	Wed, 20 Aug 2014 13:43:49 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	"Fujinaka, Todd" <todd.fujinaka@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 086/104] igb: Don't let ethtool try to write to iNVM in i210/i211

From: "Fujinaka, Todd" <todd.fujinaka@...el.com>

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

===============

commit a71fc313c4f569be5788caff07ef1fe346842c5b upstream.

Don't let ethtool try to write to iNVM in i210/i211.

This fixes an issue seen by Marek Vasut.

Reported-by: Marek Vasut <marex@...x.de>
Signed-off-by: Todd Fujinaka <todd.fujinaka@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 7bcf1ce59b41..6a5b67ba45c8 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -771,8 +771,10 @@ static int igb_set_eeprom(struct net_device *netdev,
 	if (eeprom->len == 0)
 		return -EOPNOTSUPP;
 
-	if (hw->mac.type == e1000_i211)
+	if ((hw->mac.type >= e1000_i210) &&
+	    !igb_get_flash_presence_i210(hw)) {
 		return -EOPNOTSUPP;
+	}
 
 	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 		return -EFAULT;
-- 
2.0.4

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