igbvf: use BIT() macro instead of shifts

To prevent signed bitshift issues, and improve code readability, use the
BIT() macro. Also make use of GENMASK or the unsigned postfix where this
is more appropriate than BIT()

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

5 files changed, 11 insertions, 10 deletions

diff --git a/drivers/net/ethernet/intel/igbvf/defines.h b/drivers/net/ethernet/intel/igbvf/defines.h
index ae3f28332fa0..ee1ef08d7fc4 100644
--- a/drivers/net/ethernet/intel/igbvf/defines.h
+++ b/drivers/net/ethernet/intel/igbvf/defines.h
@@ -113,7 +113,7 @@
 #define E1000_RXDCTL_QUEUE_ENABLE	0x02000000 /* Enable specific Rx Que */
 
 /* Direct Cache Access (DCA) definitions */
-#define E1000_DCA_TXCTRL_TX_WB_RO_EN	(1 << 11) /* Tx Desc writeback RO bit */
+#define E1000_DCA_TXCTRL_TX_WB_RO_EN	BIT(11) /* Tx Desc writeback RO bit */
 
 #define E1000_VF_INIT_TIMEOUT	200 /* Number of retries to clear RSTI */
 
diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c
index b74ce53d7b52..8dea1b1367ef 100644
--- a/drivers/net/ethernet/intel/igbvf/ethtool.c
+++ b/drivers/net/ethernet/intel/igbvf/ethtool.c
@@ -154,7 +154,8 @@ static void igbvf_get_regs(struct net_device *netdev,
 
 	memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
 
-	regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
+	regs->version = (1u << 24) |
+			(adapter->pdev->revision << 16) |
 			adapter->pdev->device;
 
 	regs_buff[0] = er32(CTRL);
diff --git a/drivers/net/ethernet/intel/igbvf/igbvf.h b/drivers/net/ethernet/intel/igbvf/igbvf.h
index f166baab8d7e..6f4290d6dc9f 100644
--- a/drivers/net/ethernet/intel/igbvf/igbvf.h
+++ b/drivers/net/ethernet/intel/igbvf/igbvf.h
@@ -287,8 +287,8 @@ struct igbvf_info {
 };
 
 /* hardware capability, feature, and workaround flags */
-#define IGBVF_FLAG_RX_CSUM_DISABLED	(1 << 0)
-#define IGBVF_FLAG_RX_LB_VLAN_BSWAP	(1 << 1)
+#define IGBVF_FLAG_RX_CSUM_DISABLED	BIT(0)
+#define IGBVF_FLAG_RX_LB_VLAN_BSWAP	BIT(1)
 #define IGBVF_RX_DESC_ADV(R, i)     \
 	(&((((R).desc))[i].rx_desc))
 #define IGBVF_TX_DESC_ADV(R, i)     \
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 78af4c7716d3..57894a80c469 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -964,7 +964,7 @@ static void igbvf_assign_vector(struct igbvf_adapter *adapter, int rx_queue,
 			ivar = ivar & 0xFFFFFF00;
 			ivar |= msix_vector | E1000_IVAR_VALID;
 		}
-		adapter->rx_ring[rx_queue].eims_value = 1 << msix_vector;
+		adapter->rx_ring[rx_queue].eims_value = BIT(msix_vector);
 		array_ew32(IVAR0, index, ivar);
 	}
 	if (tx_queue > IGBVF_NO_QUEUE) {
@@ -979,7 +979,7 @@ static void igbvf_assign_vector(struct igbvf_adapter *adapter, int rx_queue,
 			ivar = ivar & 0xFFFF00FF;
 			ivar |= (msix_vector | E1000_IVAR_VALID) << 8;
 		}
-		adapter->tx_ring[tx_queue].eims_value = 1 << msix_vector;
+		adapter->tx_ring[tx_queue].eims_value = BIT(msix_vector);
 		array_ew32(IVAR0, index, ivar);
 	}
 }
@@ -1014,8 +1014,8 @@ static void igbvf_configure_msix(struct igbvf_adapter *adapter)
 
 	ew32(IVAR_MISC, tmp);
 
-	adapter->eims_enable_mask = (1 << (vector)) - 1;
-	adapter->eims_other = 1 << (vector - 1);
+	adapter->eims_enable_mask = GENMASK(vector - 1, 0);
+	adapter->eims_other = BIT(vector - 1);
 	e1e_flush();
 }
 
@@ -2089,7 +2089,7 @@ static int igbvf_maybe_stop_tx(struct net_device *netdev, int size)
 }
 
 #define IGBVF_MAX_TXD_PWR	16
-#define IGBVF_MAX_DATA_PER_TXD	(1 << IGBVF_MAX_TXD_PWR)
+#define IGBVF_MAX_DATA_PER_TXD	(1u << IGBVF_MAX_TXD_PWR)
 
 static inline int igbvf_tx_map_adv(struct igbvf_adapter *adapter,
 				   struct igbvf_ring *tx_ring,
diff --git a/drivers/net/ethernet/intel/igbvf/vf.c b/drivers/net/ethernet/intel/igbvf/vf.c
index a13baa90ae20..335ba6642145 100644
--- a/drivers/net/ethernet/intel/igbvf/vf.c
+++ b/drivers/net/ethernet/intel/igbvf/vf.c
@@ -266,7 +266,7 @@ static s32 e1000_set_vfta_vf(struct e1000_hw *hw, u16 vid, bool set)
 	msgbuf[1] = vid;
 	/* Setting the 8 bit field MSG INFO to true indicates "add" */
 	if (set)
-		msgbuf[0] |= 1 << E1000_VT_MSGINFO_SHIFT;
+		msgbuf[0] |= BIT(E1000_VT_MSGINFO_SHIFT);
 
 	mbx->ops.write_posted(hw, msgbuf, 2);