netdev - [net-next 3/9] i40e: Prevent setting link speed on KX

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Message-Id: <20180319175659.17685-4-jeffrey.t.kirsher@intel.com>
Date:   Mon, 19 Mar 2018 10:56:53 -0700
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Patryk Małek <patryk.malek@...el.com>,
        netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
        jogreene@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 3/9] i40e: Prevent setting link speed on KX_X722

From: Patryk Małek <patryk.malek@...el.com>

Setting link settings on backplane devices shouldn't be allowed.
This patch adds one more device id to the list which we check
that against.

Signed-off-by: Patryk Małek <patryk.malek@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 0ce68e8a45cc..d3d299ab9de3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -859,7 +859,8 @@ static int i40e_set_link_ksettings(struct net_device *netdev,
 	if (hw->device_id == I40E_DEV_ID_KX_B ||
 	    hw->device_id == I40E_DEV_ID_KX_C ||
 	    hw->device_id == I40E_DEV_ID_20G_KR2 ||
-	    hw->device_id == I40E_DEV_ID_20G_KR2_A) {
+	    hw->device_id == I40E_DEV_ID_20G_KR2_A ||
+	    hw->device_id == I40E_DEV_ID_KX_X722) {
 		netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 		return -EOPNOTSUPP;
 	}
-- 
2.14.3