net: dsa: do not cast dst

dsa_ptr is not a void pointer anymore since Nov 2011, as of cf50dcc2
("dsa: Change dsa_uses_{dsa, trailer}_tags() into inline functions"),
but an explicit dsa_switch_tree pointer, thus remove the (void *) cast.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/dsa/dsa2.c

@@ -454,7 +454,7 @@ static int dsa_dst_apply(struct dsa_switch_tree *dst)
 	 * sent to the tag format's receive function.
 	 */
 	wmb();
-	dst->master_netdev->dsa_ptr = (void *)dst;
+	dst->master_netdev->dsa_ptr = dst;
 	dst->applied = true;
 
 	return 0;

net/dsa/legacy.c

@@ -651,7 +651,7 @@ static int dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
 	 * sent to the tag format's receive function.
 	 */
 	wmb();
-	dev->dsa_ptr = (void *)dst;
+	dev->dsa_ptr = dst;
 
 	return 0;
 }