sfc: Use explicit bool for boolean variables, parameters and return values

Replace (cond ? 1 : 0) with cond or !!cond as appropriate, and
(cond ? 0 : 1) with !cond.

Remove some redundant boolean temporaries.

Rename one field that looks like a flag but isn't.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

18 files changed, 175 insertions, 178 deletions

diff --git a/drivers/net/sfc/boards.c b/drivers/net/sfc/boards.c
index d3d3dd0a117..99e60237326 100644
--- a/drivers/net/sfc/boards.c
+++ b/drivers/net/sfc/boards.c
@@ -31,23 +31,23 @@ static void blink_led_timer(unsigned long context)
 		mod_timer(&bl->timer, jiffies + BLINK_INTERVAL);
 }
 
-static void board_blink(struct efx_nic *efx, int blink)
+static void board_blink(struct efx_nic *efx, bool blink)
 {
 	struct efx_blinker *blinker = &efx->board_info.blinker;
 
 	/* The rtnl mutex serialises all ethtool ioctls, so
 	 * nothing special needs doing here. */
 	if (blink) {
-		blinker->resubmit = 1;
-		blinker->state = 0;
+		blinker->resubmit = true;
+		blinker->state = false;
 		setup_timer(&blinker->timer, blink_led_timer,
 			    (unsigned long)efx);
 		mod_timer(&blinker->timer, jiffies + BLINK_INTERVAL);
 	} else {
-		blinker->resubmit = 0;
+		blinker->resubmit = false;
 		if (blinker->timer.function)
 			del_timer_sync(&blinker->timer);
-		efx->board_info.set_fault_led(efx, 0);
+		efx->board_info.set_fault_led(efx, false);
 	}
 }
 
@@ -78,7 +78,7 @@ static int sfe4002_init_leds(struct efx_nic *efx)
 	return 0;
 }
 
-static void sfe4002_fault_led(struct efx_nic *efx, int state)
+static void sfe4002_fault_led(struct efx_nic *efx, bool state)
 {
 	xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON :
 			QUAKE_LED_OFF);
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index d3b76bd5809..7eb11d32deb 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -51,7 +51,7 @@ static struct workqueue_struct *refill_workqueue;
  * This sets the default for new devices.  It can be controlled later
  * using ethtool.
  */
-static int lro = 1;
+static int lro = true;
 module_param(lro, int, 0644);
 MODULE_PARM_DESC(lro, "Large receive offload acceleration");
 
@@ -64,7 +64,7 @@ MODULE_PARM_DESC(lro, "Large receive offload acceleration");
  * This is forced to 0 for MSI interrupt mode as the interrupt vector
  * is not written
  */
-static unsigned int separate_tx_and_rx_channels = 1;
+static unsigned int separate_tx_and_rx_channels = true;
 
 /* This is the weight assigned to each of the (per-channel) virtual
  * NAPI devices.
@@ -80,7 +80,7 @@ unsigned int efx_monitor_interval = 1 * HZ;
 /* This controls whether or not the hardware monitor will trigger a
  * reset when it detects an error condition.
  */
-static unsigned int monitor_reset = 1;
+static unsigned int monitor_reset = true;
 
 /* This controls whether or not the driver will initialise devices
  * with invalid MAC addresses stored in the EEPROM or flash.  If true,
@@ -202,7 +202,7 @@ static inline void efx_channel_processed(struct efx_channel *channel)
 	/* The interrupt handler for this channel may set work_pending
 	 * as soon as we acknowledge the events we've seen.  Make sure
 	 * it's cleared before then. */
-	channel->work_pending = 0;
+	channel->work_pending = false;
 	smp_wmb();
 
 	falcon_eventq_read_ack(channel);
@@ -431,8 +431,8 @@ static void efx_start_channel(struct efx_channel *channel)
 	/* The interrupt handler for this channel may set work_pending
 	 * as soon as we enable it.  Make sure it's cleared before
 	 * then.  Similarly, make sure it sees the enabled flag set. */
-	channel->work_pending = 0;
-	channel->enabled = 1;
+	channel->work_pending = false;
+	channel->enabled = true;
 	smp_wmb();
 
 	napi_enable(&channel->napi_str);
@@ -455,7 +455,7 @@ static void efx_stop_channel(struct efx_channel *channel)
 
 	EFX_LOG(channel->efx, "stop chan %d\n", channel->channel);
 
-	channel->enabled = 0;
+	channel->enabled = false;
 	napi_disable(&channel->napi_str);
 
 	/* Ensure that any worker threads have exited or will be no-ops */
@@ -525,8 +525,6 @@ void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue, int delay)
  */
 static void efx_link_status_changed(struct efx_nic *efx)
 {
-	int carrier_ok;
-
 	/* SFC Bug 5356: A net_dev notifier is registered, so we must ensure
 	 * that no events are triggered between unregister_netdev() and the
 	 * driver unloading. A more general condition is that NETDEV_CHANGE
@@ -534,8 +532,7 @@ static void efx_link_status_changed(struct efx_nic *efx)
 	if (!netif_running(efx->net_dev))
 		return;
 
-	carrier_ok = netif_carrier_ok(efx->net_dev) ? 1 : 0;
-	if (efx->link_up != carrier_ok) {
+	if (efx->link_up != netif_carrier_ok(efx->net_dev)) {
 		efx->n_link_state_changes++;
 
 		if (efx->link_up)
@@ -660,7 +657,7 @@ static int efx_init_port(struct efx_nic *efx)
 	if (rc)
 		return rc;
 
-	efx->port_initialized = 1;
+	efx->port_initialized = true;
 
 	/* Reconfigure port to program MAC registers */
 	falcon_reconfigure_xmac(efx);
@@ -677,7 +674,7 @@ static void efx_start_port(struct efx_nic *efx)
 	BUG_ON(efx->port_enabled);
 
 	mutex_lock(&efx->mac_lock);
-	efx->port_enabled = 1;
+	efx->port_enabled = true;
 	__efx_reconfigure_port(efx);
 	mutex_unlock(&efx->mac_lock);
 }
@@ -691,7 +688,7 @@ static void efx_stop_port(struct efx_nic *efx)
 	EFX_LOG(efx, "stop port\n");
 
 	mutex_lock(&efx->mac_lock);
-	efx->port_enabled = 0;
+	efx->port_enabled = false;
 	mutex_unlock(&efx->mac_lock);
 
 	/* Serialise against efx_set_multicast_list() */
@@ -709,9 +706,9 @@ static void efx_fini_port(struct efx_nic *efx)
 		return;
 
 	falcon_fini_xmac(efx);
-	efx->port_initialized = 0;
+	efx->port_initialized = false;
 
-	efx->link_up = 0;
+	efx->link_up = false;
 	efx_link_status_changed(efx);
 }
 
@@ -866,7 +863,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
 
 		if (rc == 0) {
 			for (i = 0; i < efx->rss_queues; i++) {
-				efx->channel[i].has_interrupt = 1;
+				efx->channel[i].has_interrupt = true;
 				efx->channel[i].irq = xentries[i].vector;
 			}
 		} else {
@@ -882,7 +879,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
 		rc = pci_enable_msi(efx->pci_dev);
 		if (rc == 0) {
 			efx->channel[0].irq = efx->pci_dev->irq;
-			efx->channel[0].has_interrupt = 1;
+			efx->channel[0].has_interrupt = true;
 		} else {
 			EFX_ERR(efx, "could not enable MSI\n");
 			efx->interrupt_mode = EFX_INT_MODE_LEGACY;
@@ -894,7 +891,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
 		efx->rss_queues = 1;
 		/* Every channel is interruptible */
 		for (i = 0; i < EFX_MAX_CHANNELS; i++)
-			efx->channel[i].has_interrupt = 1;
+			efx->channel[i].has_interrupt = true;
 		efx->legacy_irq = efx->pci_dev->irq;
 	}
 }
@@ -935,7 +932,7 @@ static void efx_select_used(struct efx_nic *efx)
 		rx_queue = &efx->rx_queue[i];
 
 		if (i < efx->rss_queues) {
-			rx_queue->used = 1;
+			rx_queue->used = true;
 			/* If we allow multiple RX queues per channel
 			 * we need to decide that here
 			 */
@@ -1462,13 +1459,13 @@ static void efx_set_multicast_list(struct net_device *net_dev)
 	struct efx_nic *efx = netdev_priv(net_dev);
 	struct dev_mc_list *mc_list = net_dev->mc_list;
 	union efx_multicast_hash *mc_hash = &efx->multicast_hash;
-	int promiscuous;
+	bool promiscuous;
 	u32 crc;
 	int bit;
 	int i;
 
 	/* Set per-MAC promiscuity flag and reconfigure MAC if necessary */
-	promiscuous = (net_dev->flags & IFF_PROMISC) ? 1 : 0;
+	promiscuous = !!(net_dev->flags & IFF_PROMISC);
 	if (efx->promiscuous != promiscuous) {
 		efx->promiscuous = promiscuous;
 		/* Close the window between efx_stop_port() and efx_flush_all()
@@ -1801,7 +1798,7 @@ int efx_port_dummy_op_int(struct efx_nic *efx)
 	return 0;
 }
 void efx_port_dummy_op_void(struct efx_nic *efx) {}
-void efx_port_dummy_op_blink(struct efx_nic *efx, int blink) {}
+void efx_port_dummy_op_blink(struct efx_nic *efx, bool blink) {}
 
 static struct efx_phy_operations efx_dummy_phy_operations = {
 	.init		 = efx_port_dummy_op_int,
@@ -1855,7 +1852,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
 	efx->board_info = efx_dummy_board_info;
 
 	efx->net_dev = net_dev;
-	efx->rx_checksum_enabled = 1;
+	efx->rx_checksum_enabled = true;
 	spin_lock_init(&efx->netif_stop_lock);
 	spin_lock_init(&efx->stats_lock);
 	mutex_init(&efx->mac_lock);
@@ -1869,7 +1866,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
 		channel->efx = efx;
 		channel->channel = i;
 		channel->evqnum = i;
-		channel->work_pending = 0;
+		channel->work_pending = false;
 	}
 	for (i = 0; i < EFX_TX_QUEUE_COUNT; i++) {
 		tx_queue = &efx->tx_queue[i];
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index 3b2f69f4a9a..29a1c583058 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -28,7 +28,7 @@ extern void efx_wake_queue(struct efx_nic *efx);
 /* RX */
 extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
 extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
-			  unsigned int len, int checksummed, int discard);
+			  unsigned int len, bool checksummed, bool discard);
 extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue, int delay);
 
 /* Channels */
@@ -50,7 +50,7 @@ extern void efx_hex_dump(const u8 *, unsigned int, const char *);
 /* Dummy PHY ops for PHY drivers */
 extern int efx_port_dummy_op_int(struct efx_nic *efx);
 extern void efx_port_dummy_op_void(struct efx_nic *efx);
-extern void efx_port_dummy_op_blink(struct efx_nic *efx, int blink);
+extern void efx_port_dummy_op_blink(struct efx_nic *efx, bool blink);
 
 
 extern unsigned int efx_monitor_interval;
@@ -59,7 +59,7 @@ static inline void efx_schedule_channel(struct efx_channel *channel)
 {
 	EFX_TRACE(channel->efx, "channel %d scheduling NAPI poll on CPU%d\n",
 		  channel->channel, raw_smp_processor_id());
-	channel->work_pending = 1;
+	channel->work_pending = true;
 
 	netif_rx_schedule(channel->napi_dev, &channel->napi_str);
 }
diff --git a/drivers/net/sfc/enum.h b/drivers/net/sfc/enum.h
index c53290d08e2..cec15dbb88e 100644
--- a/drivers/net/sfc/enum.h
+++ b/drivers/net/sfc/enum.h
@@ -52,12 +52,11 @@ extern const char *efx_loopback_mode_names[];
 #define LOOPBACK_MASK(_efx)			\
 	(1 << (_efx)->loopback_mode)
 
-#define LOOPBACK_INTERNAL(_efx)						\
-	((LOOPBACKS_10G_INTERNAL & LOOPBACK_MASK(_efx)) ? 1 : 0)
+#define LOOPBACK_INTERNAL(_efx)				\
+	(!!(LOOPBACKS_10G_INTERNAL & LOOPBACK_MASK(_efx)))
 
-#define LOOPBACK_OUT_OF(_from, _to, _mask)		\
-	(((LOOPBACK_MASK(_from) & (_mask)) &&		\
-	  ((LOOPBACK_MASK(_to) & (_mask)) == 0)) ? 1 : 0)
+#define LOOPBACK_OUT_OF(_from, _to, _mask)				\
+	((LOOPBACK_MASK(_from) & (_mask)) && !(LOOPBACK_MASK(_to) & (_mask)))
 
 /*****************************************************************************/
 
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index ccd82f12456..6142c3a394b 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -447,7 +447,7 @@ static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
 	/* No way to stop the hardware doing the checks; we just
 	 * ignore the result.
 	 */
-	efx->rx_checksum_enabled = (enable ? 1 : 0);
+	efx->rx_checksum_enabled = !!enable;
 
 	return 0;
 }
@@ -641,9 +641,9 @@ static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
 
-	pause->rx_pause = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
-	pause->tx_pause = (efx->flow_control & EFX_FC_TX) ? 1 : 0;
-	pause->autoneg = (efx->flow_control & EFX_FC_AUTO) ? 1 : 0;
+	pause->rx_pause = !!(efx->flow_control & EFX_FC_RX);
+	pause->tx_pause = !!(efx->flow_control & EFX_FC_TX);
+	pause->autoneg = !!(efx->flow_control & EFX_FC_AUTO);
 }
 
 
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 8ee63da25e6..fb069712222 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -539,7 +539,7 @@ static int falcon_flush_tx_queue(struct efx_tx_queue *tx_queue)
 
 	if (EFX_WORKAROUND_11557(efx)) {
 		efx_oword_t reg;
-		int enabled;
+		bool enabled;
 
 		falcon_read_table(efx, &reg, efx->type->txd_ptr_tbl_base,
 				  tx_queue->queue);
@@ -644,8 +644,8 @@ int falcon_init_rx(struct efx_rx_queue *rx_queue)
 	efx_oword_t rx_desc_ptr;
 	struct efx_nic *efx = rx_queue->efx;
 	int rc;
-	int is_b0 = falcon_rev(efx) >= FALCON_REV_B0;
-	int iscsi_digest_en = is_b0;
+	bool is_b0 = falcon_rev(efx) >= FALCON_REV_B0;
+	bool iscsi_digest_en = is_b0;
 
 	EFX_LOG(efx, "RX queue %d ring in special buffers %d-%d\n",
 		rx_queue->queue, rx_queue->rxd.index,
@@ -695,7 +695,8 @@ static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
 	read_ptr = channel->eventq_read_ptr;
 	for (i = 0; i < FALCON_EVQ_SIZE; ++i) {
 		efx_qword_t *event = falcon_event(channel, read_ptr);
-		int ev_code, ev_sub_code, ev_queue, ev_failed;
+		int ev_code, ev_sub_code, ev_queue;
+		bool ev_failed;
 		if (!falcon_event_present(event))
 			break;
 
@@ -722,7 +723,7 @@ static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
 
 	if (EFX_WORKAROUND_11557(efx)) {
 		efx_oword_t reg;
-		int enabled;
+		bool enabled;
 
 		falcon_read_table(efx, &reg, efx->type->rxd_ptr_tbl_base,
 				  rx_queue->queue);
@@ -851,15 +852,16 @@ static inline void falcon_handle_tx_event(struct efx_channel *channel,
 /* Detect errors included in the rx_evt_pkt_ok bit. */
 static void falcon_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
 				    const efx_qword_t *event,
-				    unsigned *rx_ev_pkt_ok,
-				    int *discard)
+				    bool *rx_ev_pkt_ok,
+				    bool *discard)
 {
 	struct efx_nic *efx = rx_queue->efx;
-	unsigned rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err;
-	unsigned rx_ev_tcp_udp_chksum_err, rx_ev_eth_crc_err;
-	unsigned rx_ev_frm_trunc, rx_ev_drib_nib, rx_ev_tobe_disc;
-	unsigned rx_ev_pkt_type, rx_ev_other_err, rx_ev_pause_frm;
-	unsigned rx_ev_ip_frag_err, rx_ev_hdr_type, rx_ev_mcast_pkt;
+	bool rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err;
+	bool rx_ev_tcp_udp_chksum_err, rx_ev_eth_crc_err;
+	bool rx_ev_frm_trunc, rx_ev_drib_nib, rx_ev_tobe_disc;
+	bool rx_ev_other_err, rx_ev_pause_frm;
+	bool rx_ev_ip_frag_err, rx_ev_hdr_type, rx_ev_mcast_pkt;
+	unsigned rx_ev_pkt_type;
 
 	rx_ev_hdr_type = EFX_QWORD_FIELD(*event, RX_EV_HDR_TYPE);
 	rx_ev_mcast_pkt = EFX_QWORD_FIELD(*event, RX_EV_MCAST_PKT);
@@ -954,9 +956,9 @@ static inline int falcon_handle_rx_event(struct efx_channel *channel,
 					 const efx_qword_t *event)
 {
 	unsigned int rx_ev_q_label, rx_ev_desc_ptr, rx_ev_byte_cnt;
-	unsigned int rx_ev_pkt_ok, rx_ev_hdr_type, rx_ev_mcast_pkt;
+	unsigned int rx_ev_hdr_type, rx_ev_mcast_pkt;
 	unsigned expected_ptr;
-	int discard = 0, checksummed;
+	bool rx_ev_pkt_ok, discard = false, checksummed;
 	struct efx_rx_queue *rx_queue;
 	struct efx_nic *efx = channel->efx;
 
@@ -985,7 +987,7 @@ static inline int falcon_handle_rx_event(struct efx_channel *channel,
 	} else {
 		falcon_handle_rx_not_ok(rx_queue, event, &rx_ev_pkt_ok,
 					&discard);
-		checksummed = 0;
+		checksummed = false;
 	}
 
 	/* Detect multicast packets that didn't match the filter */
@@ -995,7 +997,7 @@ static inline int falcon_handle_rx_event(struct efx_channel *channel,
 			EFX_QWORD_FIELD(*event, RX_EV_MCAST_HASH_MATCH);
 
 		if (unlikely(!rx_ev_mcast_hash_match))
-			discard = 1;
+			discard = true;
 	}
 
 	/* Handle received packet */
@@ -1010,23 +1012,23 @@ static void falcon_handle_global_event(struct efx_channel *channel,
 				       efx_qword_t *event)
 {
 	struct efx_nic *efx = channel->efx;
-	int is_phy_event = 0, handled = 0;
+	bool is_phy_event = false, handled = false;
 
 	/* Check for interrupt on either port.  Some boards have a
 	 * single PHY wired to the interrupt line for port 1. */
 	if (EFX_QWORD_FIELD(*event, G_PHY0_INTR) ||
 	    EFX_QWORD_FIELD(*event, G_PHY1_INTR) ||
 	    EFX_QWORD_FIELD(*event, XG_PHY_INTR))
-		is_phy_event = 1;
+		is_phy_event = true;
 
 	if ((falcon_rev(efx) >= FALCON_REV_B0) &&
 	    EFX_OWORD_FIELD(*event, XG_MNT_INTR_B0))
-		is_phy_event = 1;
+		is_phy_event = true;
 
 	if (is_phy_event) {
 		efx->phy_op->clear_interrupt(efx);
 		queue_work(efx->workqueue, &efx->reconfigure_work);
-		handled = 1;
+		handled = true;
 	}
 
 	if (EFX_QWORD_FIELD_VER(efx, *event, RX_RECOVERY)) {
@@ -1036,7 +1038,7 @@ static void falcon_handle_global_event(struct efx_channel *channel,
 		atomic_inc(&efx->rx_reset);
 		efx_schedule_reset(efx, EFX_WORKAROUND_6555(efx) ?
 				   RESET_TYPE_RX_RECOVERY : RESET_TYPE_DISABLE);
-		handled = 1;
+		handled = true;
 	}
 
 	if (!handled)
@@ -1756,7 +1758,7 @@ void falcon_reconfigure_mac_wrapper(struct efx_nic *efx)
 {
 	efx_oword_t reg;
 	int link_speed;
-	unsigned int tx_fc;
+	bool tx_fc;
 
 	if (efx->link_options & GM_LPA_10000)
 		link_speed = 0x3;
@@ -1791,7 +1793,7 @@ void falcon_reconfigure_mac_wrapper(struct efx_nic *efx)
 	/* Transmission of pause frames when RX crosses the threshold is
 	 * covered by RX_XOFF_MAC_EN and XM_TX_CFG_REG:XM_FCNTL.
 	 * Action on receipt of pause frames is controller by XM_DIS_FCNTL */
-	tx_fc = (efx->flow_control & EFX_FC_TX) ? 1 : 0;
+	tx_fc = !!(efx->flow_control & EFX_FC_TX);
 	falcon_read(efx, &reg, RX_CFG_REG_KER);
 	EFX_SET_OWORD_FIELD_VER(efx, reg, RX_XOFF_MAC_EN, tx_fc);
 
@@ -2064,7 +2066,7 @@ int falcon_probe_port(struct efx_nic *efx)
 		return rc;
 
 	/* Set up GMII structure for PHY */
-	efx->mii.supports_gmii = 1;
+	efx->mii.supports_gmii = true;
 	falcon_init_mdio(&efx->mii);
 
 	/* Hardware flow ctrl. FalconA RX FIFO too small for pause generation */
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index 492f9bc2884..a72f50e3e6e 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -65,7 +65,7 @@ extern int falcon_probe_port(struct efx_nic *efx);
 extern void falcon_remove_port(struct efx_nic *efx);
 
 /* MAC/PHY */
-extern int falcon_xaui_link_ok(struct efx_nic *efx);
+extern bool falcon_xaui_link_ok(struct efx_nic *efx);
 extern int falcon_dma_stats(struct efx_nic *efx,
 			    unsigned int done_offset);
 extern void falcon_drain_tx_fifo(struct efx_nic *efx);
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index ab114b4c342..be5a86f0e5c 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -70,7 +70,7 @@ static int falcon_reset_xmac(struct efx_nic *efx)
 	}
 
 	/* This often fails when DSP is disabled, ignore it */
-	if (sfe4001_phy_flash_cfg != 0)
+	if (sfe4001_phy_flash_cfg)
 		return 0;
 
 	EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
@@ -217,12 +217,12 @@ int falcon_reset_xaui(struct efx_nic *efx)
 	return rc;
 }
 
-static int falcon_xgmii_status(struct efx_nic *efx)
+static bool falcon_xgmii_status(struct efx_nic *efx)
 {
 	efx_dword_t reg;
 
 	if (falcon_rev(efx) < FALCON_REV_B0)
-		return 1;
+		return true;
 
 	/* The ISR latches, so clear it and re-read */
 	falcon_xmac_readl(efx, &reg, XM_MGT_INT_REG_MAC_B0);
@@ -231,13 +231,13 @@ static int falcon_xgmii_status(struct efx_nic *efx)
 	if (EFX_DWORD_FIELD(reg, XM_LCLFLT) ||
 	    EFX_DWORD_FIELD(reg, XM_RMTFLT)) {
 		EFX_INFO(efx, "MGT_INT: "EFX_DWORD_FMT"\n", EFX_DWORD_VAL(reg));
-		return 0;
+		return false;
 	}
 
-	return 1;
+	return true;
 }
 
-static void falcon_mask_status_intr(struct efx_nic *efx, int enable)
+static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
 {
 	efx_dword_t reg;
 
@@ -274,7 +274,7 @@ int falcon_init_xmac(struct efx_nic *efx)
 	if (rc)
 		goto fail2;
 
-	falcon_mask_status_intr(efx, 1);
+	falcon_mask_status_intr(efx, true);
 	return 0;
 
  fail2:
@@ -283,13 +283,14 @@ int falcon_init_xmac(struct efx_nic *efx)
 	return rc;
 }
 
-int falcon_xaui_link_ok(struct efx_nic *efx)
+bool falcon_xaui_link_ok(struct efx_nic *efx)
 {
 	efx_dword_t reg;
-	int align_done, sync_status, link_ok = 0;
+	bool align_done, link_ok = false;
+	int sync_status;
 
 	if (LOOPBACK_INTERNAL(efx))
-		return 1;
+		return true;
 
 	/* Read link status */
 	falcon_xmac_readl(efx, &reg, XX_CORE_STAT_REG_MAC);
@@ -297,7 +298,7 @@ int falcon_xaui_link_ok(struct efx_nic *efx)
 	align_done = EFX_DWORD_FIELD(reg, XX_ALIGN_DONE);
 	sync_status = EFX_DWORD_FIELD(reg, XX_SYNC_STAT);
 	if (align_done && (sync_status == XX_SYNC_STAT_DECODE_SYNCED))
-		link_ok = 1;
+		link_ok = true;
 
 	/* Clear link status ready for next read */
 	EFX_SET_DWORD_FIELD(reg, XX_COMMA_DET, XX_COMMA_DET_RESET);
@@ -309,8 +310,7 @@ int falcon_xaui_link_ok(struct efx_nic *efx)
 	 * (error conditions from the wire side propoagate back through
 	 * the phy to the xaui side). */
 	if (efx->link_up && link_ok) {
-		int has_phyxs = efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS);
-		if (has_phyxs)
+		if (efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS))
 			link_ok = mdio_clause45_phyxgxs_lane_sync(efx);
 	}
 
@@ -326,7 +326,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
 {
 	unsigned int max_frame_len;
 	efx_dword_t reg;
-	int rx_fc = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
+	bool rx_fc = !!(efx->flow_control & EFX_FC_RX);
 
 	/* Configure MAC  - cut-thru mode is hard wired on */
 	EFX_POPULATE_DWORD_3(reg,
@@ -365,7 +365,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
 
 	EFX_POPULATE_DWORD_2(reg,
 			     XM_PAUSE_TIME, 0xfffe, /* MAX PAUSE TIME */
-			     XM_DIS_FCNTL, rx_fc ? 0 : 1);
+			     XM_DIS_FCNTL, !rx_fc);
 	falcon_xmac_writel(efx, &reg, XM_FC_REG_MAC);
 
 	/* Set MAC address */
@@ -384,16 +384,15 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
 static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
 {
 	efx_dword_t reg;
-	int xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS) ? 1 : 0;
-	int xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI) ? 1 : 0;
-	int xgmii_loopback =
-		(efx->loopback_mode == LOOPBACK_XGMII) ? 1 : 0;
+	bool xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS);
+	bool xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI);
+	bool xgmii_loopback = (efx->loopback_mode == LOOPBACK_XGMII);
 
 	/* XGXS block is flaky and will need to be reset if moving
 	 * into our out of XGMII, XGXS or XAUI loopbacks. */
 	if (EFX_WORKAROUND_5147(efx)) {
-		int old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
-		int reset_xgxs;
+		bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
+		bool reset_xgxs;
 
 		falcon_xmac_readl(efx, &reg, XX_CORE_STAT_REG_MAC);
 		old_xgxs_loopback = EFX_DWORD_FIELD(reg, XX_XGXS_LB_EN);
@@ -438,7 +437,7 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
 
 /* Try and bring the Falcon side of the Falcon-Phy XAUI link fails
  * to come back up. Bash it until it comes back up */
-static int falcon_check_xaui_link_up(struct efx_nic *efx)
+static bool falcon_check_xaui_link_up(struct efx_nic *efx)
 {
 	int max_tries, tries;
 	tries = EFX_WORKAROUND_5147(efx) ? 5 : 1;
@@ -446,11 +445,11 @@ static int falcon_check_xaui_link_up(struct efx_nic *efx)
 
 	if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
 	    (efx->phy_type == PHY_TYPE_NONE))
-		return 0;
+		return false;
 
 	while (tries) {
 		if (falcon_xaui_link_ok(efx))
-			return 1;
+			return true;
 
 		EFX_LOG(efx, "%s Clobbering XAUI (%d tries left).\n",
 			__func__, tries);
@@ -461,14 +460,14 @@ static int falcon_check_xaui_link_up(struct efx_nic *efx)
 
 	EFX_LOG(efx, "Failed to bring XAUI link back up in %d tries!\n",
 		max_tries);
-	return 0;
+	return false;
 }
 
 void falcon_reconfigure_xmac(struct efx_nic *efx)
 {
-	int xaui_link_ok;
+	bool xaui_link_ok;
 
-	falcon_mask_status_intr(efx, 0);
+	falcon_mask_status_intr(efx, false);
 
 	falcon_deconfigure_mac_wrapper(efx);
 
@@ -484,7 +483,7 @@ void falcon_reconfigure_xmac(struct efx_nic *efx)
 	xaui_link_ok = falcon_check_xaui_link_up(efx);
 
 	if (xaui_link_ok && efx->link_up)
-		falcon_mask_status_intr(efx, 1);
+		falcon_mask_status_intr(efx, true);
 }
 
 void falcon_fini_xmac(struct efx_nic *efx)
@@ -563,14 +562,14 @@ void falcon_update_stats_xmac(struct efx_nic *efx)
 
 int falcon_check_xmac(struct efx_nic *efx)
 {
-	unsigned xaui_link_ok;
+	bool xaui_link_ok;
 	int rc;
 
 	if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
 	    (efx->phy_type == PHY_TYPE_NONE))
 		return 0;
 
-	falcon_mask_status_intr(efx, 0);
+	falcon_mask_status_intr(efx, false);
 	xaui_link_ok = falcon_xaui_link_ok(efx);
 
 	if (EFX_WORKAROUND_5147(efx) && !xaui_link_ok)
@@ -581,7 +580,7 @@ int falcon_check_xmac(struct efx_nic *efx)
 
 	/* Unmask interrupt if everything was (and still is) ok */
 	if (xaui_link_ok && efx->link_up)
-		falcon_mask_status_intr(efx, 1);
+		falcon_mask_status_intr(efx, true);
 
 	return rc;
 }
@@ -622,7 +621,7 @@ int falcon_xmac_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
 
 int falcon_xmac_set_pause(struct efx_nic *efx, enum efx_fc_type flow_control)
 {
-	int reset;
+	bool reset;
 
 	if (flow_control & EFX_FC_AUTO) {
 		EFX_LOG(efx, "10G does not support flow control "
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c
index c4f540e93b7..406494684bb 100644
--- a/drivers/net/sfc/mdio_10g.c
+++ b/drivers/net/sfc/mdio_10g.c
@@ -159,20 +159,19 @@ int mdio_clause45_check_mmds(struct efx_nic *efx,
 	return 0;
 }
 
-int mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
+bool mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
 {
 	int phy_id = efx->mii.phy_id;
 	int status;
-	int ok = 1;
+	bool ok = true;
 	int mmd = 0;
-	int good;
 
 	/* If the port is in loopback, then we should only consider a subset
 	 * of mmd's */
 	if (LOOPBACK_INTERNAL(efx))
-		return 1;
+		return true;
 	else if (efx->loopback_mode == LOOPBACK_NETWORK)
-		return 0;
+		return false;
 	else if (efx->loopback_mode == LOOPBACK_PHYXS)
 		mmd_mask &= ~(MDIO_MMDREG_DEVS0_PHYXS |
 			      MDIO_MMDREG_DEVS0_PCS |
@@ -192,8 +191,7 @@ int mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
 			status = mdio_clause45_read(efx, phy_id,
 						    mmd, MDIO_MMDREG_STAT1);
 
-			good = status & (1 << MDIO_MMDREG_STAT1_LINK_LBN);
-			ok = ok && good;
+			ok = ok && (status & (1 << MDIO_MMDREG_STAT1_LINK_LBN));
 		}
 		mmd_mask = (mmd_mask >> 1);
 		mmd++;
diff --git a/drivers/net/sfc/mdio_10g.h b/drivers/net/sfc/mdio_10g.h
index 3bb6b55010d..19c42eaf7fb 100644
--- a/drivers/net/sfc/mdio_10g.h
+++ b/drivers/net/sfc/mdio_10g.h
@@ -199,16 +199,17 @@ static inline u32 mdio_clause45_read_id(struct efx_nic *efx, int mmd)
 	return (id_hi << 16) | (id_low);
 }
 
-static inline int mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx)
+static inline bool mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx)
 {
-	int i, sync, lane_status;
+	int i, lane_status;
+	bool sync;
 
 	for (i = 0; i < 2; ++i)
 		lane_status = mdio_clause45_read(efx, efx->mii.phy_id,
 						 MDIO_MMD_PHYXS,
 						 MDIO_PHYXS_LANE_STATE);
 
-	sync = (lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN)) != 0;
+	sync = !!(lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN));
 	if (!sync)
 		EFX_LOG(efx, "XGXS lane status: %x\n", lane_status);
 	return sync;
@@ -230,8 +231,8 @@ int mdio_clause45_check_mmds(struct efx_nic *efx,
 			     unsigned int mmd_mask, unsigned int fatal_mask);
 
 /* Check the link status of specified mmds in bit mask */
-extern int mdio_clause45_links_ok(struct efx_nic *efx,
-				  unsigned int mmd_mask);
+extern bool mdio_clause45_links_ok(struct efx_nic *efx,
+				   unsigned int mmd_mask);
 
 /* Generic transmit disable support though PMAPMD */
 extern void mdio_clause45_transmit_disable(struct efx_nic *efx);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 6369f9253c7..1b92186bec5 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -137,8 +137,8 @@ struct efx_tx_buffer {
 	struct efx_tso_header *tsoh;
 	dma_addr_t dma_addr;
 	unsigned short len;
-	unsigned char continuation;
-	unsigned char unmap_single;
+	bool continuation;
+	bool unmap_single;
 	unsigned short unmap_len;
 };
 
@@ -162,7 +162,7 @@ struct efx_tx_buffer {
  * @txd: The hardware descriptor ring
  * @read_count: Current read pointer.
  *	This is the number of buffers that have been removed from both rings.
- * @stopped: Stopped flag.
+ * @stopped: Stopped count.
  *	Set if this TX queue is currently stopping its port.
  * @insert_count: Current insert pointer
  *	This is the number of buffers that have been added to the
@@ -265,7 +265,7 @@ struct efx_rx_buffer {
 struct efx_rx_queue {
 	struct efx_nic *efx;
 	int queue;
-	int used;
+	bool used;
 	struct efx_channel *channel;
 	struct efx_rx_buffer *buffer;
 	struct efx_special_buffer rxd;
@@ -359,13 +359,13 @@ struct efx_channel {
 	int evqnum;
 	int channel;
 	int used_flags;
-	int enabled;
+	bool enabled;
 	int irq;
-	unsigned int has_interrupt;
+	bool has_interrupt;
 	unsigned int irq_moderation;
 	struct net_device *napi_dev;
 	struct napi_struct napi_str;
-	int work_pending;
+	bool work_pending;
 	struct efx_special_buffer eventq;
 	unsigned int eventq_read_ptr;
 	unsigned int last_eventq_read_ptr;
@@ -388,7 +388,7 @@ struct efx_channel {
 	 * access with prefetches.
 	 */
 	struct efx_rx_buffer *rx_pkt;
-	int rx_pkt_csummed;
+	bool rx_pkt_csummed;
 
 };
 
@@ -401,8 +401,8 @@ struct efx_channel {
  */
 struct efx_blinker {
 	int led_num;
-	int state;
-	int resubmit;
+	bool state;
+	bool resubmit;
 	struct timer_list timer;
 };
 
@@ -430,8 +430,8 @@ struct efx_board {
 	 * have a separate init callback that happens later than
 	 * board init. */
 	int (*init_leds)(struct efx_nic *efx);
-	void (*set_fault_led) (struct efx_nic *efx, int state);
-	void (*blink) (struct efx_nic *efx, int start);
+	void (*set_fault_led) (struct efx_nic *efx, bool state);
+	void (*blink) (struct efx_nic *efx, bool start);
 	void (*fini) (struct efx_nic *nic);
 	struct efx_blinker blinker;
 	struct i2c_client *hwmon_client, *ioexp_client;
@@ -714,11 +714,11 @@ struct efx_nic {
 	struct falcon_nic_data *nic_data;
 
 	struct mutex mac_lock;
-	int port_enabled;
+	bool port_enabled;
 
-	int port_initialized;
+	bool port_initialized;
 	struct net_device *net_dev;
-	int rx_checksum_enabled;
+	bool rx_checksum_enabled;
 
 	atomic_t netif_stop_count;
 	spinlock_t netif_stop_lock;
@@ -734,13 +734,13 @@ struct efx_nic {
 	struct efx_phy_operations *phy_op;
 	void *phy_data;
 	struct mii_if_info mii;
-	unsigned tx_disabled;
+	bool tx_disabled;
 
-	int link_up;