[BRIDGE]: make dev->features unsigned

The features field in netdevice is really a bitmask, and bitmask's should
be unsigned.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/netdevice.h

@@ -401,7 +401,7 @@ struct net_device
 	} reg_state;
 
 	/* Net device features */
-	int			features;
+	unsigned long		features;
 #define NETIF_F_SG		1	/* Scatter/gather IO. */
 #define NETIF_F_IP_CSUM		2	/* Can checksum only TCP/UDP over IPv4. */
 #define NETIF_F_NO_CSUM		4	/* Does not require checksum. F.e. loopack. */

net/core/ethtool.c

@@ -682,7 +682,7 @@ int dev_ethtool(struct ifreq *ifr)
 	void __user *useraddr = ifr->ifr_data;
 	u32 ethcmd;
 	int rc;
-	int old_features;
+	unsigned long old_features;
 
 	/*
 	 * XXX: This can be pushed down into the ethtool_* handlers that