e1000e: use BIT() macro for bit defines

This prevents signed bitshift issues when the shift would overwrite the
signed bit, and prevents making this mistake in the future when copying
and modifying code.

Use GENMASK or the unsigned postfix for cases which aren't suitable for
BIT() macro.

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

drivers/net/ethernet/intel/e1000e/80003es2lan.c

@@ -121,7 +121,7 @@ static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
 	/* EEPROM access above 16k is unsupported */
 	if (size > 14)
 		size = 14;
-	nvm->word_size = 1 << size;
+	nvm->word_size = BIT(size);
 
 	return 0;
 }
@@ -845,27 +845,27 @@ static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
 
 	/* Transmit Descriptor Control 0 */
 	reg = er32(TXDCTL(0));
-	reg |= (1 << 22);
+	reg |= BIT(22);
 	ew32(TXDCTL(0), reg);
 
 	/* Transmit Descriptor Control 1 */
 	reg = er32(TXDCTL(1));
-	reg |= (1 << 22);
+	reg |= BIT(22);
 	ew32(TXDCTL(1), reg);
 
 	/* Transmit Arbitration Control 0 */
 	reg = er32(TARC(0));
 	reg &= ~(0xF << 27);	/* 30:27 */
 	if (hw->phy.media_type != e1000_media_type_copper)
-		reg &= ~(1 << 20);
+		reg &= ~BIT(20);
 	ew32(TARC(0), reg);
 
 	/* Transmit Arbitration Control 1 */
 	reg = er32(TARC(1));
 	if (er32(TCTL) & E1000_TCTL_MULR)
-		reg &= ~(1 << 28);
+		reg &= ~BIT(28);
 	else
-		reg |= (1 << 28);
+		reg |= BIT(28);
 	ew32(TARC(1), reg);
 
 	/* Disable IPv6 extension header parsing because some malformed

drivers/net/ethernet/intel/e1000e/82571.c

@@ -185,7 +185,7 @@ static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
 		/* EEPROM access above 16k is unsupported */
 		if (size > 14)
 			size = 14;
-		nvm->word_size = 1 << size;
+		nvm->word_size = BIT(size);
 		break;
 	}
 
@@ -1163,12 +1163,12 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 
 	/* Transmit Descriptor Control 0 */
 	reg = er32(TXDCTL(0));
-	reg |= (1 << 22);
+	reg |= BIT(22);
 	ew32(TXDCTL(0), reg);
 
 	/* Transmit Descriptor Control 1 */
 	reg = er32(TXDCTL(1));
-	reg |= (1 << 22);
+	reg |= BIT(22);
 	ew32(TXDCTL(1), reg);
 
 	/* Transmit Arbitration Control 0 */
@@ -1177,11 +1177,11 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 	switch (hw->mac.type) {
 	case e1000_82571:
 	case e1000_82572:
-		reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26);
+		reg |= BIT(23) | BIT(24) | BIT(25) | BIT(26);
 		break;
 	case e1000_82574:
 	case e1000_82583:
-		reg |= (1 << 26);
+		reg |= BIT(26);
 		break;
 	default:
 		break;
@@ -1193,12 +1193,12 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 	switch (hw->mac.type) {
 	case e1000_82571:
 	case e1000_82572:
-		reg &= ~((1 << 29) | (1 << 30));
-		reg |= (1 << 22) | (1 << 24) | (1 << 25) | (1 << 26);
+		reg &= ~(BIT(29) | BIT(30));
+		reg |= BIT(22) | BIT(24) | BIT(25) | BIT(26);
 		if (er32(TCTL) & E1000_TCTL_MULR)
-			reg &= ~(1 << 28);
+			reg &= ~BIT(28);
 		else
-			reg |= (1 << 28);
+			reg |= BIT(28);
 		ew32(TARC(1), reg);
 		break;
 	default:
@@ -1211,7 +1211,7 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 	case e1000_82574:
 	case e1000_82583:
 		reg = er32(CTRL);
-		reg &= ~(1 << 29);
+		reg &= ~BIT(29);
 		ew32(CTRL, reg);
 		break;
 	default:
@@ -1224,8 +1224,8 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 	case e1000_82574:
 	case e1000_82583:
 		reg = er32(CTRL_EXT);
-		reg &= ~(1 << 23);
-		reg |= (1 << 22);
+		reg &= ~BIT(23);
+		reg |= BIT(22);
 		ew32(CTRL_EXT, reg);
 		break;
 	default:
@@ -1261,7 +1261,7 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 	case e1000_82574:
 	case e1000_82583:
 		reg = er32(GCR);
-		reg |= (1 << 22);
+		reg |= BIT(22);
 		ew32(GCR, reg);
 
 		/* Workaround for hardware errata.
@@ -1308,8 +1308,8 @@ static void e1000_clear_vfta_82571(struct e1000_hw *hw)
 				       E1000_VFTA_ENTRY_SHIFT) &
 			    E1000_VFTA_ENTRY_MASK;
 			vfta_bit_in_reg =
-			    1 << (hw->mng_cookie.vlan_id &
-				  E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
+			    BIT(hw->mng_cookie.vlan_id &
+				E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
 		}
 		break;
 	default:

drivers/net/ethernet/intel/e1000e/e1000.h

@@ -109,18 +109,18 @@ struct e1000_info;
 #define E1000_TXDCTL_DMA_BURST_ENABLE                          \
 	(E1000_TXDCTL_GRAN | /* set descriptor granularity */  \
 	 E1000_TXDCTL_COUNT_DESC |                             \
-	 (1 << 16) | /* wthresh must be +1 more than desired */\
-	 (1 << 8)  | /* hthresh */                             \
-	 0x1f)       /* pthresh */
+	 (1u << 16) | /* wthresh must be +1 more than desired */\
+	 (1u << 8)  | /* hthresh */                             \
+	 0x1f)        /* pthresh */
 
 #define E1000_RXDCTL_DMA_BURST_ENABLE                          \
 	(0x01000000 | /* set descriptor granularity */         \
-	 (4 << 16)  | /* set writeback threshold    */         \
-	 (4 << 8)   | /* set prefetch threshold     */         \
+	 (4u << 16) | /* set writeback threshold    */         \
+	 (4u << 8)  | /* set prefetch threshold     */         \
 	 0x20)        /* set hthresh                */
 
-#define E1000_TIDV_FPD (1 << 31)
-#define E1000_RDTR_FPD (1 << 31)
+#define E1000_TIDV_FPD BIT(31)
+#define E1000_RDTR_FPD BIT(31)
 
 enum e1000_boards {
 	board_82571,
@@ -404,53 +404,53 @@ s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
 #define E1000_82574_SYSTIM_EPSILON	(1ULL << 35ULL)
 
 /* hardware capability, feature, and workaround flags */
-#define FLAG_HAS_AMT                      (1 << 0)
-#define FLAG_HAS_FLASH                    (1 << 1)
-#define FLAG_HAS_HW_VLAN_FILTER           (1 << 2)
-#define FLAG_HAS_WOL                      (1 << 3)
-/* reserved bit4 */
-#define FLAG_HAS_CTRLEXT_ON_LOAD          (1 << 5)
-#define FLAG_HAS_SWSM_ON_LOAD             (1 << 6)
-#define FLAG_HAS_JUMBO_FRAMES             (1 << 7)
-#define FLAG_READ_ONLY_NVM                (1 << 8)
-#define FLAG_IS_ICH                       (1 << 9)
-#define FLAG_HAS_MSIX                     (1 << 10)
-#define FLAG_HAS_SMART_POWER_DOWN         (1 << 11)
-#define FLAG_IS_QUAD_PORT_A               (1 << 12)
-#define FLAG_IS_QUAD_PORT                 (1 << 13)
-#define FLAG_HAS_HW_TIMESTAMP             (1 << 14)
-#define FLAG_APME_IN_WUC                  (1 << 15)
-#define FLAG_APME_IN_CTRL3                (1 << 16)
-#define FLAG_APME_CHECK_PORT_B            (1 << 17)
-#define FLAG_DISABLE_FC_PAUSE_TIME        (1 << 18)
-#define FLAG_NO_WAKE_UCAST                (1 << 19)
-#define FLAG_MNG_PT_ENABLED               (1 << 20)
-#define FLAG_RESET_OVERWRITES_LAA         (1 << 21)
-#define FLAG_TARC_SPEED_MODE_BIT          (1 << 22)
-#define FLAG_TARC_SET_BIT_ZERO            (1 << 23)
-#define FLAG_RX_NEEDS_RESTART             (1 << 24)
-#define FLAG_LSC_GIG_SPEED_DROP           (1 << 25)
-#define FLAG_SMART_POWER_DOWN             (1 << 26)
-#define FLAG_MSI_ENABLED                  (1 << 27)
-/* reserved (1 << 28) */
-#define FLAG_TSO_FORCE                    (1 << 29)
-#define FLAG_RESTART_NOW                  (1 << 30)
-#define FLAG_MSI_TEST_FAILED              (1 << 31)
-
-#define FLAG2_CRC_STRIPPING               (1 << 0)
-#define FLAG2_HAS_PHY_WAKEUP              (1 << 1)
-#define FLAG2_IS_DISCARDING               (1 << 2)
-#define FLAG2_DISABLE_ASPM_L1             (1 << 3)
-#define FLAG2_HAS_PHY_STATS               (1 << 4)
-#define FLAG2_HAS_EEE                     (1 << 5)
-#define FLAG2_DMA_BURST                   (1 << 6)
-#define FLAG2_DISABLE_ASPM_L0S            (1 << 7)
-#define FLAG2_DISABLE_AIM                 (1 << 8)
-#define FLAG2_CHECK_PHY_HANG              (1 << 9)
-#define FLAG2_NO_DISABLE_RX               (1 << 10)
-#define FLAG2_PCIM2PCI_ARBITER_WA         (1 << 11)
-#define FLAG2_DFLT_CRC_STRIPPING          (1 << 12)
-#define FLAG2_CHECK_RX_HWTSTAMP           (1 << 13)
+#define FLAG_HAS_AMT                      BIT(0)
+#define FLAG_HAS_FLASH                    BIT(1)
+#define FLAG_HAS_HW_VLAN_FILTER           BIT(2)
+#define FLAG_HAS_WOL                      BIT(3)
+/* reserved BIT(4) */
+#define FLAG_HAS_CTRLEXT_ON_LOAD          BIT(5)
+#define FLAG_HAS_SWSM_ON_LOAD             BIT(6)
+#define FLAG_HAS_JUMBO_FRAMES             BIT(7)
+#define FLAG_READ_ONLY_NVM                BIT(8)
+#define FLAG_IS_ICH                       BIT(9)
+#define FLAG_HAS_MSIX                     BIT(10)
+#define FLAG_HAS_SMART_POWER_DOWN         BIT(11)
+#define FLAG_IS_QUAD_PORT_A               BIT(12)
+#define FLAG_IS_QUAD_PORT                 BIT(13)
+#define FLAG_HAS_HW_TIMESTAMP             BIT(14)
+#define FLAG_APME_IN_WUC                  BIT(15)
+#define FLAG_APME_IN_CTRL3                BIT(16)
+#define FLAG_APME_CHECK_PORT_B            BIT(17)
+#define FLAG_DISABLE_FC_PAUSE_TIME        BIT(18)
+#define FLAG_NO_WAKE_UCAST                BIT(19)
+#define FLAG_MNG_PT_ENABLED               BIT(20)
+#define FLAG_RESET_OVERWRITES_LAA         BIT(21)
+#define FLAG_TARC_SPEED_MODE_BIT          BIT(22)
+#define FLAG_TARC_SET_BIT_ZERO            BIT(23)
+#define FLAG_RX_NEEDS_RESTART             BIT(24)
+#define FLAG_LSC_GIG_SPEED_DROP           BIT(25)
+#define FLAG_SMART_POWER_DOWN             BIT(26)
+#define FLAG_MSI_ENABLED                  BIT(27)
+/* reserved BIT(28) */
+#define FLAG_TSO_FORCE                    BIT(29)
+#define FLAG_RESTART_NOW                  BIT(30)
+#define FLAG_MSI_TEST_FAILED              BIT(31)
+
+#define FLAG2_CRC_STRIPPING               BIT(0)
+#define FLAG2_HAS_PHY_WAKEUP              BIT(1)
+#define FLAG2_IS_DISCARDING               BIT(2)
+#define FLAG2_DISABLE_ASPM_L1             BIT(3)
+#define FLAG2_HAS_PHY_STATS               BIT(4)
+#define FLAG2_HAS_EEE                     BIT(5)
+#define FLAG2_DMA_BURST                   BIT(6)
+#define FLAG2_DISABLE_ASPM_L0S            BIT(7)
+#define FLAG2_DISABLE_AIM                 BIT(8)
+#define FLAG2_CHECK_PHY_HANG              BIT(9)
+#define FLAG2_NO_DISABLE_RX               BIT(10)
+#define FLAG2_PCIM2PCI_ARBITER_WA         BIT(11)
+#define FLAG2_DFLT_CRC_STRIPPING          BIT(12)
+#define FLAG2_CHECK_RX_HWTSTAMP           BIT(13)
 
 #define E1000_RX_DESC_PS(R, i)	    \
 	(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))

drivers/net/ethernet/intel/e1000e/ethtool.c

@@ -447,8 +447,9 @@ static void e1000_get_regs(struct net_device *netdev,
 
 	memset(p, 0, E1000_REGS_LEN * sizeof(u32));
 
-	regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
-	    adapter->pdev->device;
+	regs->version = (1u << 24) |
+			(adapter->pdev->revision << 16) |
+			adapter->pdev->device;
 
 	regs_buff[0] = er32(CTRL);
 	regs_buff[1] = er32(STATUS);
@@ -903,7 +904,7 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 	case e1000_pch2lan:
 	case e1000_pch_lpt:
 	case e1000_pch_spt:
-		mask |= (1 << 18);
+		mask |= BIT(18);
 		break;
 	default:
 		break;
@@ -922,9 +923,9 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 
 			/* SHRAH[9] different than the others */
 			if (i == 10)
-				mask |= (1 << 30);
+				mask |= BIT(30);
 			else
-				mask &= ~(1 << 30);
+				mask &= ~BIT(30);
 		}
 		if (mac->type == e1000_pch2lan) {
 			/* SHRAH[0,1,2] different than previous */
@@ -932,7 +933,7 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
 				mask &= 0xFFF4FFFF;
 			/* SHRAH[3] different than SHRAH[0,1,2] */
 			if (i == 4)
-				mask |= (1 << 30);
+				mask |= BIT(30);
 			/* RAR[1-6] owned by management engine - skipping */
 			if (i > 0)
 				i += 6;
@@ -1027,7 +1028,7 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
 	/* Test each interrupt */
 	for (i = 0; i < 10; i++) {
 		/* Interrupt to test */
-		mask = 1 << i;
+		mask = BIT(i);
 
 		if (adapter->flags & FLAG_IS_ICH) {
 			switch (mask) {
@@ -1395,7 +1396,7 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
 	case e1000_phy_82579:
 		/* Disable PHY energy detect power down */
 		e1e_rphy(hw, PHY_REG(0, 21), &phy_reg);
-		e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~(1 << 3));
+		e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~BIT(3));
 		/* Disable full chip energy detect */
 		e1e_rphy(hw, PHY_REG(776, 18), &phy_reg);
 		e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1);
@@ -1461,7 +1462,7 @@ static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
 
 	/* disable autoneg */
 	ctrl = er32(TXCW);
-	ctrl &= ~(1 << 31);
+	ctrl &= ~BIT(31);
 	ew32(TXCW, ctrl);
 
 	link = (er32(STATUS) & E1000_STATUS_LU);
@@ -2291,19 +2292,19 @@ static int e1000e_get_ts_info(struct net_device *netdev,
 				  SOF_TIMESTAMPING_RX_HARDWARE |
 				  SOF_TIMESTAMPING_RAW_HARDWARE);
 
-	info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
-
-	info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
-			    (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
-			    (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
-			    (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
-			    (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
-			    (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
-			    (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
-			    (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
-			    (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
-			    (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
-			    (1 << HWTSTAMP_FILTER_ALL));
+	info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
+
+	info->rx_filters = (BIT(HWTSTAMP_FILTER_NONE) |
+			    BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
+			    BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
+			    BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
+			    BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
+			    BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
+			    BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
+			    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
+			    BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
+			    BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
+			    BIT(HWTSTAMP_FILTER_ALL));
 
 	if (adapter->ptp_clock)
 		info->phc_index = ptp_clock_index(adapter->ptp_clock);

drivers/net/ethernet/intel/e1000e/ich8lan.c

@@ -1048,7 +1048,7 @@ static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link)
 
 		while (value > PCI_LTR_VALUE_MASK) {
 			scale++;
-			value = DIV_ROUND_UP(value, (1 << 5));
+			value = DIV_ROUND_UP(value, BIT(5));
 		}
 		if (scale > E1000_LTRV_SCALE_MAX) {
 			e_dbg("Invalid LTR latency scale %d\n", scale);
@@ -1573,7 +1573,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 		phy_reg &= ~HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK;
 
 		if ((er32(STATUS) & E1000_STATUS_FD) != E1000_STATUS_FD)
-			phy_reg |= (1 << HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT);
+			phy_reg |= BIT(HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT);
 
 		e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, phy_reg);
 		break;
@@ -2044,9 +2044,9 @@ static s32 e1000_write_smbus_addr(struct e1000_hw *hw)
 		/* Restore SMBus frequency */
 		if (freq--) {
 			phy_data &= ~HV_SMB_ADDR_FREQ_MASK;
-			phy_data |= (freq & (1 << 0)) <<
+			phy_data |= (freq & BIT(0)) <<
 			    HV_SMB_ADDR_FREQ_LOW_SHIFT;
-			phy_data |= (freq & (1 << 1)) <<
+			phy_data |= (freq & BIT(1)) <<
 			    (HV_SMB_ADDR_FREQ_HIGH_SHIFT - 1);
 		} else {
 			e_dbg("Unsupported SMB frequency in PHY\n");
@@ -2530,7 +2530,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 
 	/* disable Rx path while enabling/disabling workaround */
 	e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
-	ret_val = e1e_wphy(hw, PHY_REG(769, 20), phy_reg | (1 << 14));
+	ret_val = e1e_wphy(hw, PHY_REG(769, 20), phy_reg | BIT(14));
 	if (ret_val)
 		return ret_val;
 
@@ -2561,7 +2561,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 
 		/* Enable jumbo frame workaround in the MAC */
 		mac_reg = er32(FFLT_DBG);
-		mac_reg &= ~(1 << 14);
+		mac_reg &= ~BIT(14);
 		mac_reg |= (7 << 15);
 		ew32(FFLT_DBG, mac_reg);
 
@@ -2576,7 +2576,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 			return ret_val;
 		ret_val = e1000e_write_kmrn_reg(hw,
 						E1000_KMRNCTRLSTA_CTRL_OFFSET,
-						data | (1 << 0));
+						data | BIT(0));
 		if (ret_val)
 			return ret_val;
 		ret_val = e1000e_read_kmrn_reg(hw,
@@ -2600,7 +2600,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 		if (ret_val)
 			return ret_val;
 		e1e_rphy(hw, PHY_REG(769, 16), &data);
-		data &= ~(1 << 13);
+		data &= ~BIT(13);
 		ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
 		if (ret_val)
 			return ret_val;
@@ -2614,7 +2614,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 		if (ret_val)
 			return ret_val;
 		e1e_rphy(hw, HV_PM_CTRL, &data);
-		ret_val = e1e_wphy(hw, HV_PM_CTRL, data | (1 << 10));
+		ret_val = e1e_wphy(hw, HV_PM_CTRL, data | BIT(10));
 		if (ret_val)
 			return ret_val;
 	} else {
@@ -2634,7 +2634,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 			return ret_val;
 		ret_val = e1000e_write_kmrn_reg(hw,
 						E1000_KMRNCTRLSTA_CTRL_OFFSET,
-						data & ~(1 << 0));
+						data & ~BIT(0));
 		if (ret_val)
 			return ret_val;
 		ret_val = e1000e_read_kmrn_reg(hw,
@@ -2657,7 +2657,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 		if (ret_val)
 			return ret_val;
 		e1e_rphy(hw, PHY_REG(769, 16), &data);
-		data |= (1 << 13);
+		data |= BIT(13);
 		ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
 		if (ret_val)
 			return ret_val;
@@ -2671,13 +2671,13 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
 		if (ret_val)
 			return ret_val;
 		e1e_rphy(hw, HV_PM_CTRL, &data);
-		ret_val = e1e_wphy(hw, HV_PM_CTRL, data & ~(1 << 10));
+		ret_val = e1e_wphy(hw, HV_PM_CTRL, data & ~BIT(10));
 		if (ret_val)
 			return ret_val;
 	}
 
 	/* re-enable Rx path after enabling/disabling workaround */
-	return e1e_wphy(hw, PHY_REG(769, 20), phy_reg & ~(1 << 14));
+	return e1e_wphy(hw, PHY_REG(769, 20), phy_reg & ~BIT(14));
 }
 
 /**
@@ -4841,7 +4841,7 @@ static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
 
 	/* Extended Device Control */
 	reg = er32(CTRL_EXT);
-	reg |= (1 << 22);
+	reg |= BIT(22);
 	/* Enable PHY low-power state when MAC is at D3 w/o WoL */
 	if (hw->mac.type >= e1000_pchlan)
 		reg |= E1000_CTRL_EXT_PHYPDEN;
@@ -4849,34 +4849,34 @@ static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
 
 	/* Transmit Descriptor Control 0 */
 	reg = er32(TXDCTL(0));
-	reg |= (1 << 22);
+	reg |= BIT(22);
 	ew32(TXDCTL(0), reg);
 
 	/* Transmit Descriptor Control 1 */
 	reg = er32(TXDCTL(1));
-	reg |= (1 << 22);
+	reg |= BIT(22);
 	ew32(TXDCTL(1), reg);
 
 	/* Transmit Arbitration Control 0 */
 	reg = er32(TARC(0));
 	if (hw->mac.type == e1000_ich8lan)
-		reg |= (1 << 28) | (1 << 29);
-	reg |= (1 << 23) | (1 << 24) | (1 << 26) | (1 << 27);
+		reg |= BIT(28) | BIT(29);
+	reg |= BIT(23) | BIT(24) | BIT(26) | BIT(27);
 	ew32(TARC(0), reg);
 
 	/* Transmit Arbitration Control 1 */
 	reg = er32(TARC(1));
 	if (er32(TCTL) & E1000_TCTL_MULR)
-		reg &= ~(1 << 28);
+		reg &= ~BIT(28);
 	else
-		reg |= (1 << 28);
-	reg |= (1 << 24) | (1 << 26) | (1 << 30);
+		reg |= BIT(28);
+	reg |= BIT(24) | BIT(26) | BIT(30);
 	ew32(TARC(1), reg);
 
 	/* Device Status */
 	if (hw->mac.type == e1000_ich8lan) {
 		reg = er32(STATUS);
-		reg &= ~(1 << 31);
+		reg &= ~BIT(31);
 		ew32(STATUS, reg);
 	}
 

drivers/net/ethernet/intel/e1000e/mac.c

@@ -346,7 +346,7 @@ void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,
 		hash_reg = (hash_value >> 5) & (hw->mac.mta_reg_count - 1);
 		hash_bit = hash_value & 0x1F;
 
-		hw->mac.mta_shadow[hash_reg] |= (1 << hash_bit);
+		hw->mac.mta_shadow[hash_reg] |= BIT(hash_bit);
 		mc_addr_list += (ETH_ALEN);
 	}
 

drivers/net/ethernet/intel/e1000e/netdev.c

@@ -317,8 +317,8 @@ static void e1000e_dump(struct e1000_adapter *adapter)
 		else
 			next_desc = "";
 		pr_info("T%c[0x%03X]    %016llX %016llX %016llX %04X  %3X %016llX %p%s\n",
-			(!(le64_to_cpu(u0->b) & (1 << 29)) ? 'l' :
-			 ((le64_to_cpu(u0->b) & (1 << 20)) ? 'd' : 'c')),
+			(!(le64_to_cpu(u0->b) & BIT(29)) ? 'l' :
+			 ((le64_to_cpu(u0->b) & BIT(20)) ? 'd' : 'c')),
 			i,
 			(unsigned long long)le64_to_cpu(u0->a),
 			(unsigned long long)le64_to_cpu(u0->b),
@@ -2018,7 +2018,7 @@ static void e1000_configure_msix(struct e1000_adapter *adapter)
 	adapter->eiac_mask |= E1000_IMS_OTHER;
 
 	/* Cause Tx interrupts on every write back */
-	ivar |= (1 << 31);
+	ivar |= BIT(31);
 
 	ew32(IVAR, ivar);
 
@@ -2709,7 +2709,7 @@ static int e1000_vlan_rx_add_vid(struct net_device *netdev,
 	if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
 		index = (vid >> 5) & 0x7F;
 		vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index);
-		vfta |= (1 << (vid & 0x1F));
+		vfta |= BIT((vid & 0x1F));
 		hw->mac.ops.write_vfta(hw, index, vfta);
 	}
 
@@ -2737,7 +2737,7 @@ static int e1000_vlan_rx_kill_vid(struct net_device *netdev,
 	if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
 		index = (vid >> 5) & 0x7F;
 		vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index);
-		vfta &= ~(1 << (vid & 0x1F));
+		vfta &= ~BIT((vid & 0x1F));
 		hw->mac.ops.write_vfta(hw, index, vfta);
 	}
 
@@ -2878,7 +2878,7 @@ static void e1000_init_manageability_pt(struct e1000_adapter *adapter)
 
 			/* Enable this decision filter in MANC2H */
 			if (mdef)
-				manc2h |= (1 << i);
+				manc2h |= BIT(i);
 
 			j |= mdef;
 		}
@@ -2891,7 +2891,7 @@ static void e1000_init_manageability_pt(struct e1000_adapter *adapter)
 			if (er32(MDEF(i)) == 0) {
 				ew32(MDEF(i), (E1000_MDEF_PORT_623 |
 					       E1000_MDEF_PORT_664));
-				manc2h |= (1 << 1);
+				manc2h |= BIT(1);
 				j++;
 				break;
 			}
@@ -2971,7 +2971,7 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
 		/* set the speed mode bit, we'll clear it if we're not at
 		 * gigabit link later
 		 */
-#define SPEED_MODE_BIT (1 << 21)
+#define SPEED_MODE_BIT BIT(21)
 		tarc |= SPEED_MODE_BIT;
 		ew32(TARC(0), tarc);
 	}
@@ -3071,12 +3071,12 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
 
 		e1e_rphy(hw, PHY_REG(770, 26), &phy_data);
 		phy_data &= 0xfff8;
-		phy_data |= (1 << 2);
+		phy_data |= BIT(2);
 		e1e_wphy(hw, PHY_REG(770, 26), phy_data);
 
 		e1e_rphy(hw, 22, &phy_data);
 		phy_data &= 0x0fff;
-		phy_data |= (1 << 14);
+		phy_data |= BIT(14);
 		e1e_wphy(hw, 0x10, 0x2823);
 		e1e_wphy(hw, 0x11, 0x0003);
 		e1e_wphy(hw, 22, phy_data);
@@ -3503,8 +3503,8 @@ s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca)
 	    !(er32(TSYNCRXCTL) & E1000_TSYNCRXCTL_ENABLED)) {
 		u32 fextnvm7 = er32(FEXTNVM7);
 
-		if (!(fextnvm7 & (1 << 0))) {
-			ew32(FEXTNVM7, fextnvm7 | (1 << 0));
+		if (!(fextnvm7 & BIT(0))) {
+			ew32(FEXTNVM7, fextnvm7 | BIT(0));
 			e1e_flush();
 		}
 	}
@@ -3839,7 +3839,7 @@ static void e1000_flush_rx_ring(struct e1000_adapter *adapter)
 	/* update thresholds: prefetch threshold to 31, host threshold to 1
 	 * and make sure the granularity is "descriptors" and not "cache lines"
 	 */
-	rxdctl |= (0x1F | (1 << 8) | E1000_RXDCTL_THRESH_UNIT_DESC);
+	rxdctl |= (0x1F | BIT(8) | E1000_RXDCTL_THRESH_UNIT_DESC);
 
 	ew32(RXDCTL(0), rxdctl);
 	/* momentarily enable the RX ring for the changes to take effect */
@@ -6862,7 +6862,7 @@ static void e1000_eeprom_checks(struct e1000_adapter *adapter)
 
 	ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &buf);
 	le16_to_cpus(&buf);
-	if (!ret_val && (!(buf & (1 << 0)))) {
+	if (!ret_val && (!(buf & BIT(0)))) {
 		/* Deep Smart Power Down (DSPD) */
 		dev_warn(&adapter->pdev->dev,
 			 "Warning: detected DSPD enabled in EEPROM\n");

drivers/net/ethernet/intel/e1000e/nvm.c

@@ -67,7 +67,7 @@ static void e1000_shift_out_eec_bits(struct e1000_hw *hw, u16 data, u16 count)
 	u32 eecd = er32(EECD);
 	u32 mask;
 
-	mask = 0x01 << (count - 1);
+	mask = BIT(count - 1);
 	if (nvm->type == e1000_nvm_eeprom_spi)
 		eecd |= E1000_EECD_DO;
 

drivers/net/ethernet/intel/e1000e/phy.c

@@ -2894,11 +2894,11 @@ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data,
 		if ((hw->phy.type == e1000_phy_82578) &&
 		    (hw->phy.revision >= 1) &&
 		    (hw->phy.addr == 2) &&
-		    !(MAX_PHY_REG_ADDRESS & reg) && (data & (1 << 11))) {
+		    !(MAX_PHY_REG_ADDRESS & reg) && (data & BIT(11))) {
 			u16 data2 = 0x7EFF;
 
 			ret_val = e1000_access_phy_debug_regs_hv(hw,
-								 (1 << 6) | 0x3,
+								 BIT(6) | 0x3,
 								 &data2, false);
 			if (ret_val)
 				goto out;

drivers/net/ethernet/intel/e1000e/phy.h

@@ -104,9 +104,9 @@ s32 e1000_get_cable_length_82577(struct e1000_hw *hw);
 #define BM_WUC_DATA_OPCODE		0x12
 #define BM_WUC_ENABLE_PAGE		BM_PORT_CTRL_PAGE
 #define BM_WUC_ENABLE_REG		17
-#define BM_WUC_ENABLE_BIT		(1 << 2)
-#define BM_WUC_HOST_WU_BIT		(1 << 4)
-#define BM_WUC_ME_WU_BIT		(1 << 5)
+#define BM_WUC_ENABLE_BIT		BIT(2)
+#define BM_WUC_HOST_WU_BIT		BIT(4)
+#define BM_WUC_ME_WU_BIT		BIT(5)
 
 #define PHY_UPPER_SHIFT			21
 #define BM_PHY_REG(page, reg) \
@@ -124,8 +124,8 @@ s32 e1000_get_cable_length_82577(struct e1000_hw *hw);
 #define I82578_ADDR_REG			29
 #define I82577_ADDR_REG			16
 #define I82577_CFG_REG			22
-#define I82577_CFG_ASSERT_CRS_ON_TX	(1 << 15)
-#define I82577_CFG_ENABLE_DOWNSHIFT	(3 << 10)	/* auto downshift */
+#define I82577_CFG_ASSERT_CRS_ON_TX	BIT(15)
+#define I82577_CFG_ENABLE_DOWNSHIFT	(3u << 10)	/* auto downshift */
 #define I82577_CTRL_REG			23
 
 /* 82577 specific PHY registers */