Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking changes from David Miller:

 1) GRE now works over ipv6, from Dmitry Kozlov.

 2) Make SCTP more network namespace aware, from Eric Biederman.

 3) TEAM driver now works with non-ethernet devices, from Jiri Pirko.

 4) Make openvswitch network namespace aware, from Pravin B Shelar.

 5) IPV6 NAT implementation, from Patrick McHardy.

 6) Server side support for TCP Fast Open, from Jerry Chu and others.

 7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel
    Borkmann.

 8) Increate the loopback default MTU to 64K, from Eric Dumazet.

 9) Use a per-task rather than per-socket page fragment allocator for
    outgoing networking traffic.  This benefits processes that have very
    many mostly idle sockets, which is quite common.

    From Eric Dumazet.

10) Use up to 32K for page fragment allocations, with fallbacks to
    smaller sizes when higher order page allocations fail.  Benefits are
    a) less segments for driver to process b) less calls to page
    allocator c) less waste of space.

    From Eric Dumazet.

11) Allow GRO to be used on GRE tunnels, from Eric Dumazet.

12) VXLAN device driver, one way to handle VLAN issues such as the
    limitation of 4096 VLAN IDs yet still have some level of isolation.
    From Stephen Hemminger.

13) As usual there is a large boatload of driver changes, with the scale
    perhaps tilted towards the wireless side this time around.

Fix up various fairly trivial conflicts, mostly caused by the user
namespace changes.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits)
  hyperv: Add buffer for extended info after the RNDIS response message.
  hyperv: Report actual status in receive completion packet
  hyperv: Remove extra allocated space for recv_pkt_list elements
  hyperv: Fix page buffer handling in rndis_filter_send_request()
  hyperv: Fix the missing return value in rndis_filter_set_packet_filter()
  hyperv: Fix the max_xfer_size in RNDIS initialization
  vxlan: put UDP socket in correct namespace
  vxlan: Depend on CONFIG_INET
  sfc: Fix the reported priorities of different filter types
  sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP
  sfc: Fix loopback self-test with separate_tx_channels=1
  sfc: Fix MCDI structure field lookup
  sfc: Add parentheses around use of bitfield macro arguments
  sfc: Fix null function pointer in efx_sriov_channel_type
  vxlan: virtual extensible lan
  igmp: export symbol ip_mc_leave_group
  netlink: add attributes to fdb interface
  tg3: unconditionally select HWMON support when tg3 is enabled.
  Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT"
  gre: fix sparse warning
  ...

10 files changed, 302 insertions, 53 deletions

diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 4c538e3..e5180dfd 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -34,6 +34,7 @@
 #include <linux/if_ether.h>
 #include <linux/list.h>
 #include <linux/io.h>
+#include <linux/pm_runtime.h>
 
 #include <linux/can.h>
 #include <linux/can/dev.h>
@@ -45,6 +46,9 @@
 #define IF_ENUM_REG_LEN		11
 #define C_CAN_IFACE(reg, iface)	(C_CAN_IF1_##reg + (iface) * IF_ENUM_REG_LEN)
 
+/* control extension register D_CAN specific */
+#define CONTROL_EX_PDR		BIT(8)
+
 /* control register */
 #define CONTROL_TEST		BIT(7)
 #define CONTROL_CCE		BIT(6)
@@ -64,6 +68,7 @@
 #define TEST_BASIC		BIT(2)
 
 /* status register */
+#define STATUS_PDA		BIT(10)
 #define STATUS_BOFF		BIT(7)
 #define STATUS_EWARN		BIT(6)
 #define STATUS_EPASS		BIT(5)
@@ -163,6 +168,9 @@
 /* minimum timeout for checking BUSY status */
 #define MIN_TIMEOUT_VALUE	6
 
+/* Wait for ~1 sec for INIT bit */
+#define INIT_WAIT_MS		1000
+
 /* napi related */
 #define C_CAN_NAPI_WEIGHT	C_CAN_MSG_OBJ_RX_NUM
 
@@ -201,6 +209,30 @@ static const struct can_bittiming_const c_can_bittiming_const = {
 	.brp_inc = 1,
 };
 
+static inline void c_can_pm_runtime_enable(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_enable(priv->device);
+}
+
+static inline void c_can_pm_runtime_disable(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_disable(priv->device);
+}
+
+static inline void c_can_pm_runtime_get_sync(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_get_sync(priv->device);
+}
+
+static inline void c_can_pm_runtime_put_sync(const struct c_can_priv *priv)
+{
+	if (priv->device)
+		pm_runtime_put_sync(priv->device);
+}
+
 static inline int get_tx_next_msg_obj(const struct c_can_priv *priv)
 {
 	return (priv->tx_next & C_CAN_NEXT_MSG_OBJ_MASK) +
@@ -673,11 +705,15 @@ static int c_can_get_berr_counter(const struct net_device *dev,
 	unsigned int reg_err_counter;
 	struct c_can_priv *priv = netdev_priv(dev);
 
+	c_can_pm_runtime_get_sync(priv);
+
 	reg_err_counter = priv->read_reg(priv, C_CAN_ERR_CNT_REG);
 	bec->rxerr = (reg_err_counter & ERR_CNT_REC_MASK) >>
 				ERR_CNT_REC_SHIFT;
 	bec->txerr = reg_err_counter & ERR_CNT_TEC_MASK;
 
+	c_can_pm_runtime_put_sync(priv);
+
 	return 0;
 }
 
@@ -1053,11 +1089,13 @@ static int c_can_open(struct net_device *dev)
 	int err;
 	struct c_can_priv *priv = netdev_priv(dev);
 
+	c_can_pm_runtime_get_sync(priv);
+
 	/* open the can device */
 	err = open_candev(dev);
 	if (err) {
 		netdev_err(dev, "failed to open can device\n");
-		return err;
+		goto exit_open_fail;
 	}
 
 	/* register interrupt handler */
@@ -1079,6 +1117,8 @@ static int c_can_open(struct net_device *dev)
 
 exit_irq_fail:
 	close_candev(dev);
+exit_open_fail:
+	c_can_pm_runtime_put_sync(priv);
 	return err;
 }
 
@@ -1091,6 +1131,7 @@ static int c_can_close(struct net_device *dev)
 	c_can_stop(dev);
 	free_irq(dev->irq, dev);
 	close_candev(dev);
+	c_can_pm_runtime_put_sync(priv);
 
 	return 0;
 }
@@ -1119,6 +1160,77 @@ struct net_device *alloc_c_can_dev(void)
 }
 EXPORT_SYMBOL_GPL(alloc_c_can_dev);
 
+#ifdef CONFIG_PM
+int c_can_power_down(struct net_device *dev)
+{
+	u32 val;
+	unsigned long time_out;
+	struct c_can_priv *priv = netdev_priv(dev);
+
+	if (!(dev->flags & IFF_UP))
+		return 0;
+
+	WARN_ON(priv->type != BOSCH_D_CAN);
+
+	/* set PDR value so the device goes to power down mode */
+	val = priv->read_reg(priv, C_CAN_CTRL_EX_REG);
+	val |= CONTROL_EX_PDR;
+	priv->write_reg(priv, C_CAN_CTRL_EX_REG, val);
+
+	/* Wait for the PDA bit to get set */
+	time_out = jiffies + msecs_to_jiffies(INIT_WAIT_MS);
+	while (!(priv->read_reg(priv, C_CAN_STS_REG) & STATUS_PDA) &&
+				time_after(time_out, jiffies))
+		cpu_relax();
+
+	if (time_after(jiffies, time_out))
+		return -ETIMEDOUT;
+
+	c_can_stop(dev);
+
+	c_can_pm_runtime_put_sync(priv);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(c_can_power_down);
+
+int c_can_power_up(struct net_device *dev)
+{
+	u32 val;
+	unsigned long time_out;
+	struct c_can_priv *priv = netdev_priv(dev);
+
+	if (!(dev->flags & IFF_UP))
+		return 0;
+
+	WARN_ON(priv->type != BOSCH_D_CAN);
+
+	c_can_pm_runtime_get_sync(priv);
+
+	/* Clear PDR and INIT bits */
+	val = priv->read_reg(priv, C_CAN_CTRL_EX_REG);
+	val &= ~CONTROL_EX_PDR;
+	priv->write_reg(priv, C_CAN_CTRL_EX_REG, val);
+	val = priv->read_reg(priv, C_CAN_CTRL_REG);
+	val &= ~CONTROL_INIT;
+	priv->write_reg(priv, C_CAN_CTRL_REG, val);
+
+	/* Wait for the PDA bit to get clear */
+	time_out = jiffies + msecs_to_jiffies(INIT_WAIT_MS);
+	while ((priv->read_reg(priv, C_CAN_STS_REG) & STATUS_PDA) &&
+				time_after(time_out, jiffies))
+		cpu_relax();
+
+	if (time_after(jiffies, time_out))
+		return -ETIMEDOUT;
+
+	c_can_start(dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(c_can_power_up);
+#endif
+
 void free_c_can_dev(struct net_device *dev)
 {
 	free_candev(dev);
@@ -1133,10 +1245,19 @@ static const struct net_device_ops c_can_netdev_ops = {
 
 int register_c_can_dev(struct net_device *dev)
 {
+	struct c_can_priv *priv = netdev_priv(dev);
+	int err;
+
+	c_can_pm_runtime_enable(priv);
+
 	dev->flags |= IFF_ECHO;	/* we support local echo */
 	dev->netdev_ops = &c_can_netdev_ops;
 
-	return register_candev(dev);
+	err = register_candev(dev);
+	if (err)
+		c_can_pm_runtime_disable(priv);
+
+	return err;
 }
 EXPORT_SYMBOL_GPL(register_c_can_dev);
 
@@ -1144,10 +1265,9 @@ void unregister_c_can_dev(struct net_device *dev)
 {
 	struct c_can_priv *priv = netdev_priv(dev);
 
-	/* disable all interrupts */
-	c_can_enable_all_interrupts(priv, DISABLE_ALL_INTERRUPTS);
-
 	unregister_candev(dev);
+
+	c_can_pm_runtime_disable(priv);
 }
 EXPORT_SYMBOL_GPL(unregister_c_can_dev);
 
diff --git a/drivers/net/can/c_can/c_can.h b/drivers/net/can/c_can/c_can.h
index 01a7049..e5ed41d 100644
--- a/drivers/net/can/c_can/c_can.h
+++ b/drivers/net/can/c_can/c_can.h
@@ -24,6 +24,7 @@
 
 enum reg {
 	C_CAN_CTRL_REG = 0,
+	C_CAN_CTRL_EX_REG,
 	C_CAN_STS_REG,
 	C_CAN_ERR_CNT_REG,
 	C_CAN_BTR_REG,
@@ -104,6 +105,7 @@ static const u16 reg_map_c_can[] = {
 
 static const u16 reg_map_d_can[] = {
 	[C_CAN_CTRL_REG]	= 0x00,
+	[C_CAN_CTRL_EX_REG]	= 0x02,
 	[C_CAN_STS_REG]		= 0x04,
 	[C_CAN_ERR_CNT_REG]	= 0x08,
 	[C_CAN_BTR_REG]		= 0x0C,
@@ -143,8 +145,9 @@ static const u16 reg_map_d_can[] = {
 };
 
 enum c_can_dev_id {
-	C_CAN_DEVTYPE,
-	D_CAN_DEVTYPE,
+	BOSCH_C_CAN_PLATFORM,
+	BOSCH_C_CAN,
+	BOSCH_D_CAN,
 };
 
 /* c_can private data structure */
@@ -152,6 +155,7 @@ struct c_can_priv {
 	struct can_priv can;	/* must be the first member */
 	struct napi_struct napi;
 	struct net_device *dev;
+	struct device *device;
 	int tx_object;
 	int current_status;
 	int last_status;
@@ -164,6 +168,7 @@ struct c_can_priv {
 	unsigned int tx_echo;
 	void *priv;		/* for board-specific data */
 	u16 irqstatus;
+	enum c_can_dev_id type;
 };
 
 struct net_device *alloc_c_can_dev(void);
@@ -171,4 +176,9 @@ void free_c_can_dev(struct net_device *dev);
 int register_c_can_dev(struct net_device *dev);
 void unregister_c_can_dev(struct net_device *dev);
 
+#ifdef CONFIG_PM
+int c_can_power_up(struct net_device *dev);
+int c_can_power_down(struct net_device *dev);
+#endif
+
 #endif /* C_CAN_H */
diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c
index 1011146..3d7830b 100644
--- a/drivers/net/can/c_can/c_can_pci.c
+++ b/drivers/net/can/c_can/c_can_pci.c
@@ -120,10 +120,10 @@ static int __devinit c_can_pci_probe(struct pci_dev *pdev,
 
 	/* Configure CAN type */
 	switch (c_can_pci_data->type) {
-	case C_CAN_DEVTYPE:
+	case BOSCH_C_CAN:
 		priv->regs = reg_map_c_can;
 		break;
-	case D_CAN_DEVTYPE:
+	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
 		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		break;
@@ -192,7 +192,7 @@ static void __devexit c_can_pci_remove(struct pci_dev *pdev)
 }
 
 static struct c_can_pci_data c_can_sta2x11= {
-	.type = C_CAN_DEVTYPE,
+	.type = BOSCH_C_CAN,
 	.reg_align = C_CAN_REG_ALIGN_32,
 	.freq = 52000000, /* 52 Mhz */
 };
diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 6ff7ad0..ee14161 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -30,6 +30,9 @@
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
 
 #include <linux/can/dev.h>
 
@@ -65,17 +68,58 @@ static void c_can_plat_write_reg_aligned_to_32bit(struct c_can_priv *priv,
 	writew(val, priv->base + 2 * priv->regs[index]);
 }
 
+static struct platform_device_id c_can_id_table[] = {
+	[BOSCH_C_CAN_PLATFORM] = {
+		.name = KBUILD_MODNAME,
+		.driver_data = BOSCH_C_CAN,
+	},
+	[BOSCH_C_CAN] = {
+		.name = "c_can",
+		.driver_data = BOSCH_C_CAN,
+	},
+	[BOSCH_D_CAN] = {
+		.name = "d_can",
+		.driver_data = BOSCH_D_CAN,
+	}, {
+	}
+};
+
+static const struct of_device_id c_can_of_table[] = {
+	{ .compatible = "bosch,c_can", .data = &c_can_id_table[BOSCH_C_CAN] },
+	{ .compatible = "bosch,d_can", .data = &c_can_id_table[BOSCH_D_CAN] },
+	{ /* sentinel */ },
+};
+
 static int __devinit c_can_plat_probe(struct platform_device *pdev)
 {
 	int ret;
 	void __iomem *addr;
 	struct net_device *dev;
 	struct c_can_priv *priv;
+	const struct of_device_id *match;
 	const struct platform_device_id *id;
+	struct pinctrl *pinctrl;
 	struct resource *mem;
 	int irq;
 	struct clk *clk;
 
+	if (pdev->dev.of_node) {
+		match = of_match_device(c_can_of_table, &pdev->dev);
+		if (!match) {
+			dev_err(&pdev->dev, "Failed to find matching dt id\n");
+			ret = -EINVAL;
+			goto exit;
+		}
+		id = match->data;
+	} else {
+		id = platform_get_device_id(pdev);
+	}
+
+	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR(pinctrl))
+		dev_warn(&pdev->dev,
+			"failed to configure pins from driver\n");
+
 	/* get the appropriate clk */
 	clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(clk)) {
@@ -114,9 +158,8 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 	}
 
 	priv = netdev_priv(dev);
-	id = platform_get_device_id(pdev);
 	switch (id->driver_data) {
-	case C_CAN_DEVTYPE:
+	case BOSCH_C_CAN:
 		priv->regs = reg_map_c_can;
 		switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
 		case IORESOURCE_MEM_32BIT:
@@ -130,7 +173,7 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 			break;
 		}
 		break;
-	case D_CAN_DEVTYPE:
+	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
 		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		priv->read_reg = c_can_plat_read_reg_aligned_to_16bit;
@@ -143,8 +186,10 @@ static int __devinit c_can_plat_probe(struct platform_device *pdev)
 
 	dev->irq = irq;
 	priv->base = addr;
+	priv->device = &pdev->dev;
 	priv->can.clock.freq = clk_get_rate(clk);
 	priv->priv = clk;
+	priv->type = id->driver_data;
 
 	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
@@ -195,27 +240,75 @@ static int __devexit c_can_plat_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct platform_device_id c_can_id_table[] = {
-	{
-		.name = KBUILD_MODNAME,
-		.driver_data = C_CAN_DEVTYPE,
-	}, {
-		.name = "c_can",
-		.driver_data = C_CAN_DEVTYPE,
-	}, {
-		.name = "d_can",
-		.driver_data = D_CAN_DEVTYPE,
-	}, {
+#ifdef CONFIG_PM
+static int c_can_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	int ret;
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct c_can_priv *priv = netdev_priv(ndev);
+
+	if (priv->type != BOSCH_D_CAN) {
+		dev_warn(&pdev->dev, "Not supported\n");
+		return 0;
 	}
-};
+
+	if (netif_running(ndev)) {
+		netif_stop_queue(ndev);
+		netif_device_detach(ndev);
+	}
+
+	ret = c_can_power_down(ndev);
+	if (ret) {
+		netdev_err(ndev, "failed to enter power down mode\n");
+		return ret;
+	}
+
+	priv->can.state = CAN_STATE_SLEEPING;
+
+	return 0;
+}
+
+static int c_can_resume(struct platform_device *pdev)
+{
+	int ret;
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct c_can_priv *priv = netdev_priv(ndev);
+
+	if (priv->type != BOSCH_D_CAN) {
+		dev_warn(&pdev->dev, "Not supported\n");
+		return 0;
+	}
+
+	ret = c_can_power_up(ndev);
+	if (ret) {
+		netdev_err(ndev, "Still in power down mode\n");
+		return ret;
+	}
+
+	priv->can.state = CAN_STATE_ERROR_ACTIVE;
+
+	if (netif_running(ndev)) {
+		netif_device_attach(ndev);
+		netif_start_queue(ndev);
+	}
+
+	return 0;
+}
+#else
+#define c_can_suspend NULL
+#define c_can_resume NULL
+#endif
 
 static struct platform_driver c_can_plat_driver = {
 	.driver = {
 		.name = KBUILD_MODNAME,
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(c_can_of_table),
 	},
 	.probe = c_can_plat_probe,
 	.remove = __devexit_p(c_can_plat_remove),
+	.suspend = c_can_suspend,
+	.resume = c_can_resume,
 	.id_table = c_can_id_table,
 };
 
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index c5f1431..c78ecfc 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -144,6 +144,10 @@
 
 #define FLEXCAN_MB_CODE_MASK		(0xf0ffffff)
 
+/* FLEXCAN hardware feature flags */
+#define FLEXCAN_HAS_V10_FEATURES	BIT(1) /* For core version >= 10 */
+#define FLEXCAN_HAS_BROKEN_ERR_STATE	BIT(2) /* Broken error state handling */
+
 /* Structure of the message buffer */
 struct flexcan_mb {
 	u32 can_ctrl;
@@ -178,7 +182,7 @@ struct flexcan_regs {
 };
 
 struct flexcan_devtype_data {
-	u32 hw_ver;	/* hardware controller version */
+	u32 features;	/* hardware controller features */
 };
 
 struct flexcan_priv {
@@ -197,11 +201,11 @@ struct flexcan_priv {
 };
 
 static struct flexcan_devtype_data fsl_p1010_devtype_data = {
-	.hw_ver = 3,
+	.features = FLEXCAN_HAS_BROKEN_ERR_STATE,
 };
-
+static struct flexcan_devtype_data fsl_imx28_devtype_data;
 static struct flexcan_devtype_data fsl_imx6q_devtype_data = {
-	.hw_ver = 10,
+	.features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_BROKEN_ERR_STATE,
 };
 
 static const struct can_bittiming_const flexcan_bittiming_const = {
@@ -741,15 +745,19 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * enable tx and rx warning interrupt
 	 * enable bus off interrupt
 	 * (== FLEXCAN_CTRL_ERR_STATE)
-	 *
-	 * _note_: we enable the "error interrupt"
-	 * (FLEXCAN_CTRL_ERR_MSK), too. Otherwise we don't get any
-	 * warning or bus passive interrupts.
 	 */
 	reg_ctrl = flexcan_read(&regs->ctrl);
 	reg_ctrl &= ~FLEXCAN_CTRL_TSYN;
 	reg_ctrl |= FLEXCAN_CTRL_BOFF_REC | FLEXCAN_CTRL_LBUF |
-		FLEXCAN_CTRL_ERR_STATE | FLEXCAN_CTRL_ERR_MSK;
+		FLEXCAN_CTRL_ERR_STATE;
+	/*
+	 * enable the "error interrupt" (FLEXCAN_CTRL_ERR_MSK),
+	 * on most Flexcan cores, too. Otherwise we don't get
+	 * any error warning or passive interrupts.
+	 */
+	if (priv->devtype_data->features & FLEXCAN_HAS_BROKEN_ERR_STATE ||
+	    priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
+		reg_ctrl |= FLEXCAN_CTRL_ERR_MSK;
 
 	/* save for later use */
 	priv->reg_ctrl_default = reg_ctrl;
@@ -772,7 +780,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	flexcan_write(0x0, &regs->rx14mask);
 	flexcan_write(0x0, &regs->rx15mask);
 
-	if (priv->devtype_data->hw_ver >= 10)
+	if (priv->devtype_data->features & FLEXCAN_HAS_V10_FEATURES)
 		flexcan_write(0x0, &regs->rxfgmask);
 
 	flexcan_transceiver_switch(priv, 1);
@@ -954,6 +962,7 @@ static void __devexit unregister_flexcandev(struct net_device *dev)
 
 static const struct of_device_id flexcan_of_match[] = {
 	{ .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
+	{ .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
 	{ .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
 	{ /* sentinel */ },
 };
diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c
index 8a8df82..c975999 100644
--- a/drivers/net/can/mscan/mpc5xxx_can.c
+++ b/drivers/net/can/mscan/mpc5xxx_can.c
@@ -181,7 +181,7 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev,
 
 		if (!clock_name || !strcmp(clock_name, "sys")) {
 			sys_clk = clk_get(&ofdev->dev, "sys_clk");
-			if (!sys_clk) {
+			if (IS_ERR(sys_clk)) {
 				dev_err(&ofdev->dev, "couldn't get sys_clk\n");
 				goto exit_unmap;
 			}
@@ -204,7 +204,7 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev,
 
 		if (clocksrc < 0) {
 			ref_clk = clk_get(&ofdev->dev, "ref_clk");
-			if (!ref_clk) {
+			if (IS_ERR(ref_clk)) {
 				dev_err(&ofdev->dev, "couldn't get ref_clk\n");
 				goto exit_unmap;
 			}
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 4c4f33d..25011db 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -156,8 +156,13 @@ static void set_normal_mode(struct net_device *dev)
 		}
 
 		/* set chip to normal mode */
-		priv->write_reg(priv, REG_MOD, 0x00);
+		if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
+			priv->write_reg(priv, REG_MOD, MOD_LOM);
+		else
+			priv->write_reg(priv, REG_MOD, 0x00);
+
 		udelay(10);
+
 		status = priv->read_reg(priv, REG_MOD);
 	}
 
@@ -310,7 +315,10 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb,
 
 	can_put_echo_skb(skb, dev, 0);
 
-	sja1000_write_cmdreg(priv, CMD_TR);
+	if (priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT)
+		sja1000_write_cmdreg(priv, CMD_TR | CMD_AT);
+	else
+		sja1000_write_cmdreg(priv, CMD_TR);
 
 	return NETDEV_TX_OK;
 }
@@ -505,10 +513,18 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id)
 			netdev_warn(dev, "wakeup interrupt\n");
 
 		if (isrc & IRQ_TI) {
-			/* transmission complete interrupt */
-			stats->tx_bytes += priv->read_reg(priv, REG_FI) & 0xf;
-			stats->tx_packets++;
-			can_get_echo_skb(dev, 0);
+			/* transmission buffer released */
+			if (priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT &&
+			    !(status & SR_TCS)) {
+				stats->tx_errors++;
+				can_free_echo_skb(dev, 0);
+			} else {
+				/* transmission complete */
+				stats->tx_bytes +=
+					priv->read_reg(priv, REG_FI) & 0xf;
+				stats->tx_packets++;
+				can_get_echo_skb(dev, 0);
+			}
 			netif_wake_queue(dev);
 		}
 		if (isrc & IRQ_RI) {
@@ -605,7 +621,8 @@ struct net_device *alloc_sja1000dev(int sizeof_priv)
 	priv->can.do_set_mode = sja1000_set_mode;
 	priv->can.do_get_berr_counter = sja1000_get_berr_counter;
 	priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
-		CAN_CTRLMODE_BERR_REPORTING;
+		CAN_CTRLMODE_BERR_REPORTING | CAN_CTRLMODE_LISTENONLY |
+		CAN_CTRLMODE_ONE_SHOT;
 
 	spin_lock_init(&priv->cmdreg_lock);
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index d2f91f7..c4643c4 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -53,7 +53,7 @@ static struct peak_usb_adapter *peak_usb_adapters_list[] = {
  * dump memory
  */
 #define DUMP_WIDTH	16
-void dump_mem(char *prompt, void *p, int l)
+void pcan_dump_mem(char *prompt, void *p, int l)
 {
 	pr_info("%s dumping %s (%d bytes):\n",
 		PCAN_USB_DRIVER_NAME, prompt ? prompt : "memory", l);
@@ -203,9 +203,9 @@ static void peak_usb_read_bulk_callback(struct urb *urb)
 		if (dev->state & PCAN_USB_STATE_STARTED) {
 			err = dev->adapter->dev_decode_buf(dev, urb);
 			if (err)
-				dump_mem("received usb message",
-					urb->transfer_buffer,
-					urb->transfer_buffer_length);
+				pcan_dump_mem("received usb message",
+					      urb->transfer_buffer,
+					      urb->transfer_buffer_length);
 		}
 	}
 
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.h b/drivers/net/can/usb/peak_usb/pcan_usb_core.h
index 4c775b6..c8e5e91 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.h
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.h
@@ -131,7 +131,7 @@ struct peak_usb_device {
 	struct peak_usb_device *next_siblings;
 };
 
-void dump_mem(char *prompt, void *p, int l);
+void pcan_dump_mem(char *prompt, void *p, int l);
 
 /* common timestamp management */
 void peak_usb_init_time_ref(struct peak_time_ref *time_ref,
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
index 629c4ba..e1626d9 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -292,8 +292,8 @@ static int pcan_usb_pro_wait_rsp(struct peak_usb_device *dev,
 			if (!rec_len) {
 				netdev_err(dev->netdev,
 					   "got unprocessed record in msg\n");
-				dump_mem("rcvd rsp msg", pum->u.rec_buffer,
-					 actual_length);
+				pcan_dump_mem("rcvd rsp msg", pum->u.rec_buffer,
+					      actual_length);
 				break;
 			}
 
@@ -756,8 +756,8 @@ static int pcan_usb_pro_decode_buf(struct peak_usb_device *dev, struct urb *urb)
 
 fail:
 	if (err)
-		dump_mem("received msg",
-			 urb->transfer_buffer, urb->actual_length);
+		pcan_dump_mem("received msg",
+			      urb->transfer_buffer, urb->actual_length);
 
 	return err;
 }