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From:   Sasha Levin <sashal@kernel.org>
To:     stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Stefan Wahren <stefan.wahren@i2se.com>,
        "David S . Miller" <davem@davemloft.net>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.19 65/73] net: smsc95xx: Fix MTU range
Date:   Wed, 14 Nov 2018 17:21:59 -0500
Message-Id: <20181114222207.98701-65-sashal@kernel.org>
In-Reply-To: <20181114222207.98701-1-sashal@kernel.org>
References: <20181114222207.98701-1-sashal@kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Stefan Wahren <stefan.wahren@i2se.com>

[ Upstream commit 85b18b0237ce9986a81a1b9534b5e2ee116f5504 ]

The commit f77f0aee4da4 ("net: use core MTU range checking in USB NIC
drivers") introduce a common MTU handling for usbnet. But it's missing
the necessary changes for smsc95xx. So set the MTU range accordingly.

This patch has been tested on a Raspberry Pi 3.

Fixes: f77f0aee4da4 ("net: use core MTU range checking in USB NIC drivers")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/smsc95xx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 2d17f3b9bb16..f2d01cb6f958 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1321,6 +1321,8 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
 	dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
 	dev->net->flags |= IFF_MULTICAST;
 	dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM;
+	dev->net->min_mtu = ETH_MIN_MTU;
+	dev->net->max_mtu = ETH_DATA_LEN;
 	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
 
 	pdata->dev = dev;
-- 
2.17.1