ixgbe: update all DESC_ADV macros to accept a ring pointer

All of the DESC_ADV macros are currently needing the pointers to be
de-referenced before accessing the ring.  Instead of having to add all of
the asterisks it is easier to just update the macro to expect a pointer to
the ring.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index 7233fef..ac4b90e 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -256,11 +256,11 @@
 	(R)->next_to_clean - (R)->next_to_use - 1)
 
 #define IXGBE_RX_DESC_ADV(R, i)	    \
-	(&(((union ixgbe_adv_rx_desc *)((R).desc))[i]))
+	(&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
 #define IXGBE_TX_DESC_ADV(R, i)	    \
-	(&(((union ixgbe_adv_tx_desc *)((R).desc))[i]))
+	(&(((union ixgbe_adv_tx_desc *)((R)->desc))[i]))
 #define IXGBE_TX_CTXTDESC_ADV(R, i)	    \
-	(&(((struct ixgbe_adv_tx_context_desc *)((R).desc))[i]))
+	(&(((struct ixgbe_adv_tx_context_desc *)((R)->desc))[i]))
 
 #define IXGBE_MAX_JUMBO_FRAME_SIZE        16128
 #ifdef IXGBE_FCOE