ASIX: Simplify condition in rx_fixup()

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index 5250288..d5b62a4 100644
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -314,10 +314,9 @@
 	skb_pull(skb, 4);
 
 	while (skb->len > 0) {
-		if ((short)(header & 0x0000ffff) !=
-		    ~((short)((header & 0xffff0000) >> 16))) {
+		if ((header & 0xffff) != ((~header >> 16) & 0xffff))
 			netdev_err(dev->net, "asix_rx_fixup() Bad Header Length\n");
-		}
+
 		/* get the packet length */
 		size = (u16) (header & 0x0000ffff);