net: Remove casts of void *

Unnecessary casts of void * clutter the code.

These are the remainder casts after several specific
patches to remove netdev_priv and dev_priv.

Done via coccinelle script:

$ cat cast_void_pointer.cocci
@@
type T;
T *pt;
void *pv;
@@

- pt = (T *)pv;
+ pt = pv;

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
diff --git a/net/irda/irqueue.c b/net/irda/irqueue.c
index 9715e6e..f06947c 100644
--- a/net/irda/irqueue.c
+++ b/net/irda/irqueue.c
@@ -780,7 +780,7 @@
 	/*
 	 * Search for entry
 	 */
-	entry = (irda_queue_t* ) hashbin_find( hashbin, hashv, name );
+	entry = hashbin_find(hashbin, hashv, name);
 
 	/* Release lock */
 	spin_unlock_irqrestore(&hashbin->hb_spinlock, flags);
@@ -813,7 +813,7 @@
 	 * This allow to check if the current item is still in the
 	 * hashbin or has been removed.
 	 */
-	entry = (irda_queue_t* ) hashbin_find( hashbin, hashv, name );
+	entry = hashbin_find(hashbin, hashv, name);
 
 	/*
 	 * Trick hashbin_get_next() to return what we want