3 files changed, 4 insertions, 17 deletions
diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
index bfb903506367..b8948d5b779a 100644
--- a/drivers/net/ethernet/sun/cassini.c
+++ b/drivers/net/ethernet/sun/cassini.c
@@ -73,6 +73,7 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
+#include <linux/skbuff_ref.h>
 #include <linux/ethtool.h>
 #include <linux/crc32.h>
 #include <linux/random.h>
@@ -3803,7 +3804,7 @@ static int cas_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct cas *cp = netdev_priv(dev);
 
-	dev->mtu = new_mtu;
+	WRITE_ONCE(dev->mtu, new_mtu);
 	if (!netif_running(dev) || !netif_device_present(dev))
 		return 0;
 
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index f68aa813d4fb..41a27ae58ced 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -6751,7 +6751,7 @@ static int niu_change_mtu(struct net_device *dev, int new_mtu)
 	orig_jumbo = (dev->mtu > ETH_DATA_LEN);
 	new_jumbo = (new_mtu > ETH_DATA_LEN);
 
-	dev->mtu = new_mtu;
+	WRITE_ONCE(dev->mtu, new_mtu);
 
 	if (!netif_running(dev) ||
 	    (orig_jumbo == new_jumbo))
diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c
index 9bd1df8308d2..3e5f9b17c777 100644
--- a/drivers/net/ethernet/sun/sungem.c
+++ b/drivers/net/ethernet/sun/sungem.c
@@ -949,17 +949,6 @@ static irqreturn_t gem_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void gem_poll_controller(struct net_device *dev)
-{
-	struct gem *gp = netdev_priv(dev);
-
-	disable_irq(gp->pdev->irq);
-	gem_interrupt(gp->pdev->irq, dev);
-	enable_irq(gp->pdev->irq);
-}
-#endif
-
 static void gem_tx_timeout(struct net_device *dev, unsigned int txqueue)
 {
 	struct gem *gp = netdev_priv(dev);
@@ -2499,7 +2488,7 @@ static int gem_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct gem *gp = netdev_priv(dev);
 
-	dev->mtu = new_mtu;
+	WRITE_ONCE(dev->mtu, new_mtu);
 
 	/* We'll just catch it later when the device is up'd or resumed */
 	if (!netif_running(dev) || !netif_device_present(dev))
@@ -2839,9 +2828,6 @@ static const struct net_device_ops gem_netdev_ops = {
 	.ndo_change_mtu		= gem_change_mtu,
 	.ndo_validate_addr	= eth_validate_addr,
 	.ndo_set_mac_address    = gem_set_mac_address,
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	.ndo_poll_controller    = gem_poll_controller,
-#endif
 };
 
 static int gem_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)