net: mii: make mii_ethtool_gset() return void

mii_ethtool_gset() does not return any errors. Since there are no users
of this function that rely on its return value, it can be
made void.
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/mii.c

@@ -49,10 +49,8 @@ static u32 mii_get_an(struct mii_if_info *mii, u16 addr)
  *
  * The @ecmd parameter is expected to have been cleared before calling
  * mii_ethtool_gset().
- *
- * Returns 0 for success, negative on error.
  */
-int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
+void mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
 {
 	struct net_device *dev = mii->dev;
 	u16 bmcr, bmsr, ctrl1000 = 0, stat1000 = 0;
@@ -131,8 +129,6 @@ int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
 	mii->full_duplex = ecmd->duplex;
 
 	/* ignore maxtxpkt, maxrxpkt for now */
-
-	return 0;
 }
 
 /**

include/linux/mii.h

@@ -32,7 +32,7 @@ struct mii_if_info {
 
 extern int mii_link_ok (struct mii_if_info *mii);
 extern int mii_nway_restart (struct mii_if_info *mii);
-extern int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
+extern void mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
 extern void mii_ethtool_get_link_ksettings(
 	struct mii_if_info *mii, struct ethtool_link_ksettings *cmd);
 extern int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);