i40e/i40evf: Only track one ITR setting per ring instead of Tx/Rx

The rings are already split out into Tx and Rx rings so it doesn't make
sense to have any single ring store both a Tx and Rx itr_setting value.
Since that is the case drop the pair in favor of storing just a single ITR
value.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index ddd4b30..b9121a8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2290,12 +2290,12 @@ static u32 i40e_buildreg_itr(const int type, const u16 itr)
 #define INTREG I40E_PFINT_DYN_CTLN
 static inline int get_rx_itr(struct i40e_vsi *vsi, int idx)
 {
-	return vsi->rx_rings[idx]->rx_itr_setting;
+	return vsi->rx_rings[idx]->itr_setting;
 }
 
 static inline int get_tx_itr(struct i40e_vsi *vsi, int idx)
 {
-	return vsi->tx_rings[idx]->tx_itr_setting;
+	return vsi->tx_rings[idx]->itr_setting;
 }
 
 /**
@@ -2322,7 +2322,7 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi,
 	/* avoid dynamic calculation if in countdown mode OR if
 	 * all dynamic is disabled
 	 */
-	rxval = txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
+	txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
 
 	rx_itr_setting = get_rx_itr(vsi, idx);
 	tx_itr_setting = get_tx_itr(vsi, idx);