alx: Remove casts of pointer to same type

Author: Joe Perches <joe@perches.com>

Casting a pointer to a pointer of the same type is pointless,
so remove these unnecessary casts.

Done via coccinelle script:

$ cat typecast_2.cocci
@@
type T;
T *foo;
@@

-	(T *)foo
+	foo

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller 
---
 drivers/net/ethernet/atheros/alx/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index 96f3edb..17bb9ce 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -535,7 +535,7 @@ static int alx_alloc_descriptors(struct alx_priv *alx)
 	if (!alx->descmem.virt)
 		goto out_free;
 
-	alx->txq.tpd = (void *)alx->descmem.virt;
+	alx->txq.tpd = alx->descmem.virt;
 	alx->txq.tpd_dma = alx->descmem.dma;
 
 	/* alignment requirement for next block */