21 files changed, 192 insertions, 103 deletions

diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index e6732cf7c06e..79f4fca9877a 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -398,7 +398,7 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min,
 			base = 0;
 
 		if (max < rbnode->base_reg + rbnode->blklen)
-			end = rbnode->base_reg + rbnode->blklen - max;
+			end = max - rbnode->base_reg + 1;
 		else
 			end = rbnode->blklen;
 
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 3d2367501fd0..d34adef1e63e 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -710,12 +710,12 @@ skip_format_initialization:
 		}
 	}
 
+	regmap_debugfs_init(map, config->name);
+
 	ret = regcache_init(map, config);
 	if (ret != 0)
 		goto err_range;
 
-	regmap_debugfs_init(map, config->name);
-
 	/* Add a devres resource for dev_get_regmap() */
 	m = devres_alloc(dev_get_regmap_release, sizeof(*m), GFP_KERNEL);
 	if (!m) {
@@ -943,8 +943,7 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg,
 		unsigned int ival;
 		int val_bytes = map->format.val_bytes;
 		for (i = 0; i < val_len / val_bytes; i++) {
-			memcpy(map->work_buf, val + (i * val_bytes), val_bytes);
-			ival = map->format.parse_val(map->work_buf);
+			ival = map->format.parse_val(val + (i * val_bytes));
 			ret = regcache_write(map, reg + (i * map->reg_stride),
 					     ival);
 			if (ret) {
@@ -1036,6 +1035,8 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg,
 			kfree(async->work_buf);
 			kfree(async);
 		}
+
+		return ret;
 	}
 
 	trace_regmap_hw_write_start(map->dev, reg,
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index fe5f6403417f..2c127f9c3f3b 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -922,6 +922,11 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
 		lo->lo_flags |= LO_FLAGS_PARTSCAN;
 	if (lo->lo_flags & LO_FLAGS_PARTSCAN)
 		ioctl_by_bdev(bdev, BLKRRPART, 0);
+
+	/* Grab the block_device to prevent its destruction after we
+	 * put /dev/loopXX inode. Later in loop_clr_fd() we bdput(bdev).
+	 */
+	bdgrab(bdev);
 	return 0;
 
 out_clr:
@@ -1031,8 +1036,10 @@ static int loop_clr_fd(struct loop_device *lo)
 	memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
 	memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
 	memset(lo->lo_file_name, 0, LO_NAME_SIZE);
-	if (bdev)
+	if (bdev) {
+		bdput(bdev);
 		invalidate_bdev(bdev);
+	}
 	set_capacity(lo->lo_disk, 0);
 	loop_sysfs_exit(lo);
 	if (bdev) {
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 69ae5972713c..a0f7724852eb 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -380,6 +380,15 @@ void hwrng_unregister(struct hwrng *rng)
 }
 EXPORT_SYMBOL_GPL(hwrng_unregister);
 
+static void __exit hwrng_exit(void)
+{
+	mutex_lock(&rng_mutex);
+	BUG_ON(current_rng);
+	kfree(rng_buffer);
+	mutex_unlock(&rng_mutex);
+}
+
+module_exit(hwrng_exit);
 
 MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index e905d5f53051..ce5f3fc25d6d 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -149,7 +149,8 @@ struct ports_device {
 	spinlock_t ports_lock;
 
 	/* To protect the vq operations for the control channel */
-	spinlock_t cvq_lock;
+	spinlock_t c_ivq_lock;
+	spinlock_t c_ovq_lock;
 
 	/* The current config space is stored here */
 	struct virtio_console_config config;
@@ -569,11 +570,14 @@ static ssize_t __send_control_msg(struct ports_device *portdev, u32 port_id,
 	vq = portdev->c_ovq;
 
 	sg_init_one(sg, &cpkt, sizeof(cpkt));
+
+	spin_lock(&portdev->c_ovq_lock);
 	if (virtqueue_add_buf(vq, sg, 1, 0, &cpkt, GFP_ATOMIC) == 0) {
 		virtqueue_kick(vq);
 		while (!virtqueue_get_buf(vq, &len))
 			cpu_relax();
 	}
+	spin_unlock(&portdev->c_ovq_lock);
 	return 0;
 }
 
@@ -1436,7 +1440,7 @@ static int add_port(struct ports_device *portdev, u32 id)
 		 * rproc_serial does not want the console port, only
 		 * the generic port implementation.
 		 */
-		port->host_connected = port->guest_connected = true;
+		port->host_connected = true;
 	else if (!use_multiport(port->portdev)) {
 		/*
 		 * If we're not using multiport support,
@@ -1709,23 +1713,23 @@ static void control_work_handler(struct work_struct *work)
 	portdev = container_of(work, struct ports_device, control_work);
 	vq = portdev->c_ivq;
 
-	spin_lock(&portdev->cvq_lock);
+	spin_lock(&portdev->c_ivq_lock);
 	while ((buf = virtqueue_get_buf(vq, &len))) {
-		spin_unlock(&portdev->cvq_lock);
+		spin_unlock(&portdev->c_ivq_lock);
 
 		buf->len = len;
 		buf->offset = 0;
 
 		handle_control_message(portdev, buf);
 
-		spin_lock(&portdev->cvq_lock);
+		spin_lock(&portdev->c_ivq_lock);
 		if (add_inbuf(portdev->c_ivq, buf) < 0) {
 			dev_warn(&portdev->vdev->dev,
 				 "Error adding buffer to queue\n");
 			free_buf(buf, false);
 		}
 	}
-	spin_unlock(&portdev->cvq_lock);
+	spin_unlock(&portdev->c_ivq_lock);
 }
 
 static void out_intr(struct virtqueue *vq)
@@ -1752,13 +1756,23 @@ static void in_intr(struct virtqueue *vq)
 	port->inbuf = get_inbuf(port);
 
 	/*
-	 * Don't queue up data when port is closed.  This condition
+	 * Normally the port should not accept data when the port is
+	 * closed. For generic serial ports, the host won't (shouldn't)
+	 * send data till the guest is connected. But this condition
 	 * can be reached when a console port is not yet connected (no
-	 * tty is spawned) and the host sends out data to console
-	 * ports.  For generic serial ports, the host won't
-	 * (shouldn't) send data till the guest is connected.
+	 * tty is spawned) and the other side sends out data over the
+	 * vring, or when a remote devices start sending data before
+	 * the ports are opened.
+	 *
+	 * A generic serial port will discard data if not connected,
+	 * while console ports and rproc-serial ports accepts data at
+	 * any time. rproc-serial is initiated with guest_connected to
+	 * false because port_fops_open expects this. Console ports are
+	 * hooked up with an HVC console and is initialized with
+	 * guest_connected to true.
 	 */
-	if (!port->guest_connected)
+
+	if (!port->guest_connected && !is_rproc_serial(port->portdev->vdev))
 		discard_port_data(port);
 
 	spin_unlock_irqrestore(&port->inbuf_lock, flags);
@@ -1986,10 +2000,12 @@ static int virtcons_probe(struct virtio_device *vdev)
 	if (multiport) {
 		unsigned int nr_added_bufs;
 
-		spin_lock_init(&portdev->cvq_lock);
+		spin_lock_init(&portdev->c_ivq_lock);
+		spin_lock_init(&portdev->c_ovq_lock);
 		INIT_WORK(&portdev->control_work, &control_work_handler);
 
-		nr_added_bufs = fill_queue(portdev->c_ivq, &portdev->cvq_lock);
+		nr_added_bufs = fill_queue(portdev->c_ivq,
+					   &portdev->c_ivq_lock);
 		if (!nr_added_bufs) {
 			dev_err(&vdev->dev,
 				"Error allocating buffers for control queue\n");
@@ -2140,7 +2156,7 @@ static int virtcons_restore(struct virtio_device *vdev)
 		return ret;
 
 	if (use_multiport(portdev))
-		fill_queue(portdev->c_ivq, &portdev->cvq_lock);
+		fill_queue(portdev->c_ivq, &portdev->c_ivq_lock);
 
 	list_for_each_entry(port, &portdev->ports, list) {
 		port->in_vq = portdev->in_vqs[port->id];
diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index 1e2de7305362..f873dcefe0de 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -703,7 +703,7 @@ static void tegra20_pll_init(void)
 	clks[pll_a_out0] = clk;
 
 	/* PLLE */
-	clk = tegra_clk_register_plle("pll_e", "pll_ref", clk_base, NULL,
+	clk = tegra_clk_register_plle("pll_e", "pll_ref", clk_base, pmc_base,
 			     0, 100000000, &pll_e_params,
 			     0, pll_e_freq_table, NULL);
 	clk_register_clkdev(clk, "pll_e", NULL);
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 792c3e3795ca..dd64a06dc5b4 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -2326,7 +2326,6 @@ int drm_mode_addfb(struct drm_device *dev,
 	fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
 	if (IS_ERR(fb)) {
 		DRM_DEBUG_KMS("could not create framebuffer\n");
-		drm_modeset_unlock_all(dev);
 		return PTR_ERR(fb);
 	}
 
@@ -2506,7 +2505,6 @@ int drm_mode_addfb2(struct drm_device *dev,
 	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
 	if (IS_ERR(fb)) {
 		DRM_DEBUG_KMS("could not create framebuffer\n");
-		drm_modeset_unlock_all(dev);
 		return PTR_ERR(fb);
 	}
 
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 13fdcd10a605..429e07d0b0f1 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -123,6 +123,7 @@ int drm_open(struct inode *inode, struct file *filp)
 	int retcode = 0;
 	int need_setup = 0;
 	struct address_space *old_mapping;
+	struct address_space *old_imapping;
 
 	minor = idr_find(&drm_minors_idr, minor_id);
 	if (!minor)
@@ -137,6 +138,7 @@ int drm_open(struct inode *inode, struct file *filp)
 	if (!dev->open_count++)
 		need_setup = 1;
 	mutex_lock(&dev->struct_mutex);
+	old_imapping = inode->i_mapping;
 	old_mapping = dev->dev_mapping;
 	if (old_mapping == NULL)
 		dev->dev_mapping = &inode->i_data;
@@ -159,8 +161,8 @@ int drm_open(struct inode *inode, struct file *filp)
 
 err_undo:
 	mutex_lock(&dev->struct_mutex);
-	filp->f_mapping = old_mapping;
-	inode->i_mapping = old_mapping;
+	filp->f_mapping = old_imapping;
+	inode->i_mapping = old_imapping;
 	iput(container_of(dev->dev_mapping, struct inode, i_data));
 	dev->dev_mapping = old_mapping;
 	mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 3b11ab0fbc96..9a48e1a2d417 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -57,7 +57,7 @@ eb_create(struct drm_i915_gem_execbuffer2 *args)
 	if (eb == NULL) {
 		int size = args->buffer_count;
 		int count = PAGE_SIZE / sizeof(struct hlist_head) / 2;
-		BUILD_BUG_ON(!is_power_of_2(PAGE_SIZE / sizeof(struct hlist_head)));
+		BUILD_BUG_ON_NOT_POWER_OF_2(PAGE_SIZE / sizeof(struct hlist_head));
 		while (count > 2*size)
 			count >>= 1;
 		eb = kzalloc(count*sizeof(struct hlist_head) +
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 32a3693905ec..1ce45a0a2d3e 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -45,6 +45,9 @@
 
 struct intel_crt {
 	struct intel_encoder base;
+	/* DPMS state is stored in the connector, which we need in the
+	 * encoder's enable/disable callbacks */
+	struct intel_connector *connector;
 	bool force_hotplug_required;
 	u32 adpa_reg;
 };
@@ -81,29 +84,6 @@ static bool intel_crt_get_hw_state(struct intel_encoder *encoder,
 	return true;
 }
 
-static void intel_disable_crt(struct intel_encoder *encoder)
-{
-	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
-	struct intel_crt *crt = intel_encoder_to_crt(encoder);
-	u32 temp;
-
-	temp = I915_READ(crt->adpa_reg);
-	temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE;
-	temp &= ~ADPA_DAC_ENABLE;
-	I915_WRITE(crt->adpa_reg, temp);
-}
-
-static void intel_enable_crt(struct intel_encoder *encoder)
-{
-	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
-	struct intel_crt *crt = intel_encoder_to_crt(encoder);
-	u32 temp;
-
-	temp = I915_READ(crt->adpa_reg);
-	temp |= ADPA_DAC_ENABLE;
-	I915_WRITE(crt->adpa_reg, temp);
-}
-
 /* Note: The caller is required to filter out dpms modes not supported by the
  * platform. */
 static void intel_crt_set_dpms(struct intel_encoder *encoder, int mode)
@@ -135,6 +115,19 @@ static void intel_crt_set_dpms(struct intel_encoder *encoder, int mode)
 	I915_WRITE(crt->adpa_reg, temp);
 }
 
+static void intel_disable_crt(struct intel_encoder *encoder)
+{
+	intel_crt_set_dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+static void intel_enable_crt(struct intel_encoder *encoder)
+{
+	struct intel_crt *crt = intel_encoder_to_crt(encoder);
+
+	intel_crt_set_dpms(encoder, crt->connector->base.dpms);
+}
+
+
 static void intel_crt_dpms(struct drm_connector *connector, int mode)
 {
 	struct drm_device *dev = connector->dev;
@@ -746,6 +739,7 @@ void intel_crt_init(struct drm_device *dev)
 	}
 
 	connector = &intel_connector->base;
+	crt->connector = intel_connector;
 	drm_connector_init(dev, &intel_connector->base,
 			   &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d7d4afe01341..8fc93f90a7cd 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2559,12 +2559,15 @@ void intel_dp_encoder_destroy(struct drm_encoder *encoder)
 {
 	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
+	struct drm_device *dev = intel_dp_to_dev(intel_dp);
 
 	i2c_del_adapter(&intel_dp->adapter);
 	drm_encoder_cleanup(encoder);
 	if (is_edp(intel_dp)) {
 		cancel_delayed_work_sync(&intel_dp->panel_vdd_work);
+		mutex_lock(&dev->mode_config.mutex);
 		ironlake_panel_vdd_off_sync(intel_dp);
+		mutex_unlock(&dev->mode_config.mutex);
 	}
 	kfree(intel_dig_port);
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index 3b6dc883e150..5eb3e0da7c6e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -391,7 +391,7 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_device *device = nv_device(drm->device);
 	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
-	struct nouveau_abi16_chan *chan, *temp;
+	struct nouveau_abi16_chan *chan = NULL, *temp;
 	struct nouveau_abi16_ntfy *ntfy;
 	struct nouveau_object *object;
 	struct nv_dma_class args = {};
@@ -404,10 +404,11 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 	if (unlikely(nv_device(abi16->device)->card_type >= NV_C0))
 		return nouveau_abi16_put(abi16, -EINVAL);
 
-	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
-		if (chan->chan->handle == (NVDRM_CHAN | info->channel))
+	list_for_each_entry(temp, &abi16->channels, head) {
+		if (temp->chan->handle == (NVDRM_CHAN | info->channel)) {
+			chan = temp;
 			break;
-		chan = NULL;
+		}
 	}
 
 	if (!chan)
@@ -459,17 +460,18 @@ nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 {
 	struct drm_nouveau_gpuobj_free *fini = data;
 	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
-	struct nouveau_abi16_chan *chan, *temp;
+	struct nouveau_abi16_chan *chan = NULL, *temp;
 	struct nouveau_abi16_ntfy *ntfy;
 	int ret;
 
 	if (unlikely(!abi16))
 		return -ENOMEM;
 
-	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
-		if (chan->chan->handle == (NVDRM_CHAN | fini->channel))
+	list_for_each_entry(temp, &abi16->channels, head) {
+		if (temp->chan->handle == (NVDRM_CHAN | fini->channel)) {
+			chan = temp;
 			break;
-		chan = NULL;
+		}
 	}
 
 	if (!chan)
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index d1099365bfc1..c95decf543e9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -72,11 +72,25 @@ module_param_named(modeset, nouveau_modeset, int, 0400);
 static struct drm_driver driver;
 
 static int
+nouveau_drm_vblank_handler(struct nouveau_eventh *event, int head)
+{
+	struct nouveau_drm *drm =
+		container_of(event, struct nouveau_drm, vblank[head]);
+	drm_handle_vblank(drm->dev, head);
+	return NVKM_EVENT_KEEP;
+}
+
+static int
 nouveau_drm_vblank_enable(struct drm_device *dev, int head)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_disp *pdisp = nouveau_disp(drm->device);
-	nouveau_event_get(pdisp->vblank, head, &drm->vblank);
+
+	if (WARN_ON_ONCE(head > ARRAY_SIZE(drm->vblank)))
+		return -EIO;
+	WARN_ON_ONCE(drm->vblank[head].func);
+	drm->vblank[head].func = nouveau_drm_vblank_handler;
+	nouveau_event_get(pdisp->vblank, head, &drm->vblank[head]);
 	return 0;
 }
 
@@ -85,16 +99,11 @@ nouveau_drm_vblank_disable(struct drm_device *dev, int head)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_disp *pdisp = nouveau_disp(drm->device);
-	nouveau_event_put(pdisp->vblank, head, &drm->vblank);
-}
-
-static int
-nouveau_drm_vblank_handler(struct nouveau_eventh *event, int head)
-{
-	struct nouveau_drm *drm =
-		container_of(event, struct nouveau_drm, vblank);
-	drm_handle_vblank(drm->dev, head);
-	return NVKM_EVENT_KEEP;
+	if (drm->vblank[head].func)
+		nouveau_event_put(pdisp->vblank, head, &drm->vblank[head]);
+	else
+		WARN_ON_ONCE(1);
+	drm->vblank[head].func = NULL;
 }
 
 static u64
@@ -292,7 +301,6 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 
 	dev->dev_private = drm;
 	drm->dev = dev;
-	drm->vblank.func = nouveau_drm_vblank_handler;
 
 	INIT_LIST_HEAD(&drm->clients);
 	spin_lock_init(&drm->tile.lock);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
index b25df374c901..9c39bafbef2c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
@@ -113,7 +113,7 @@ struct nouveau_drm {
 	struct nvbios vbios;
 	struct nouveau_display *display;
 	struct backlight_device *backlight;
-	struct nouveau_eventh vblank;
+	struct nouveau_eventh vblank[4];
 
 	/* power management */
 	struct nouveau_pm *pm;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 11a8cb381b85..78c9e2d33eb7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1975,12 +1975,11 @@ static int __bond_release_one(struct net_device *bond_dev,
 		return -EINVAL;
 	}
 
+	write_unlock_bh(&bond->lock);
 	/* unregister rx_handler early so bond_handle_frame wouldn't be called
 	 * for this slave anymore.
 	 */
 	netdev_rx_handler_unregister(slave_dev);
-	write_unlock_bh(&bond->lock);
-	synchronize_net();
 	write_lock_bh(&bond->lock);
 
 	if (!all && !bond->params.fail_over_mac) {
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 61b56781f7a5..473c9d2fec1a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -411,8 +411,8 @@ static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
 
 static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
 {
-	unsigned int i;
-	for (i = ETH_ALEN - 1; i; --i) {
+	int i;
+	for (i = ETH_ALEN - 1; i >= 0; --i) {
 		dst_mac[i] = src_mac & 0xff;
 		src_mac >>= 8;
 	}
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 2daf4b0da434..90bc7bd00966 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -940,6 +940,7 @@ static int bnx2fc_libfc_config(struct fc_lport *lport)
 	fc_exch_init(lport);
 	fc_rport_init(lport);
 	fc_disc_init(lport);
+	fc_disc_config(lport, lport);
 	return 0;
 }
 
@@ -2133,6 +2134,7 @@ static int _bnx2fc_create(struct net_device *netdev,
 	}
 
 	ctlr = bnx2fc_to_ctlr(interface);
+	cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
 	interface->vlan_id = vlan_id;
 
 	interface->timer_work_queue =
@@ -2143,7 +2145,7 @@ static int _bnx2fc_create(struct net_device *netdev,
 		goto ifput_err;
 	}
 
-	lport = bnx2fc_if_create(interface, &interface->hba->pcidev->dev, 0);
+	lport = bnx2fc_if_create(interface, &cdev->dev, 0);
 	if (!lport) {
 		printk(KERN_ERR PFX "Failed to create interface (%s)\n",
 			netdev->name);
@@ -2159,8 +2161,6 @@ static int _bnx2fc_create(struct net_device *netdev,
 	/* Make this master N_port */
 	ctlr->lp = lport;
 
-	cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
-
 	if (link_state == BNX2FC_CREATE_LINK_UP)
 		cdev->enabled = FCOE_CTLR_ENABLED;
 	else
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index b5d92fc93c70..9bfdc9a3f897 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -490,7 +490,6 @@ static void fcoe_interface_cleanup(struct fcoe_interface *fcoe)
 {
 	struct net_device *netdev = fcoe->netdev;
 	struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe);
-	struct fcoe_ctlr_device *ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
 
 	rtnl_lock();
 	if (!fcoe->removed)
@@ -501,7 +500,6 @@ static void fcoe_interface_cleanup(struct fcoe_interface *fcoe)
 	/* tear-down the FCoE controller */
 	fcoe_ctlr_destroy(fip);
 	scsi_host_put(fip->lp->host);
-	fcoe_ctlr_device_delete(ctlr_dev);
 	dev_put(netdev);
 	module_put(THIS_MODULE);
 }
@@ -2194,6 +2192,8 @@ out_nodev:
  */
 static void fcoe_destroy_work(struct work_struct *work)
 {
+	struct fcoe_ctlr_device *cdev;
+	struct fcoe_ctlr *ctlr;
 	struct fcoe_port *port;
 	struct fcoe_interface *fcoe;
 	struct Scsi_Host *shost;
@@ -2224,10 +2224,15 @@ static void fcoe_destroy_work(struct work_struct *work)
 	mutex_lock(&fcoe_config_mutex);
 
 	fcoe = port->priv;
+	ctlr = fcoe_to_ctlr(fcoe);
+	cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
+
 	fcoe_if_destroy(port->lport);
 	fcoe_interface_cleanup(fcoe);
 
 	mutex_unlock(&fcoe_config_mutex);
+
+	fcoe_ctlr_device_delete(cdev);
 }
 
 /**
@@ -2335,7 +2340,9 @@ static int _fcoe_create(struct net_device *netdev, enum fip_state fip_mode,
 		rc = -EIO;
 		rtnl_unlock();
 		fcoe_interface_cleanup(fcoe);
-		goto out_nortnl;
+		mutex_unlock(&fcoe_config_mutex);
+		fcoe_ctlr_device_delete(ctlr_dev);
+		goto out;
 	}
 
 	/* Make this the "master" N_Port */
@@ -2375,8 +2382,8 @@ static int _fcoe_create(struct net_device *netdev, enum fip_state fip_mode,
 
 out_nodev:
 	rtnl_unlock();
-out_nortnl:
 	mutex_unlock(&fcoe_config_mutex);
+out:
 	return rc;
 }
 
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 08c3bc398da2..a76247201be5 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -2815,6 +2815,47 @@ unlock:
 }
 
 /**
+ * fcoe_ctlr_mode_set() - Set or reset the ctlr's mode
+ * @lport: The local port to be (re)configured
+ * @fip:   The FCoE controller whose mode is changing
+ * @fip_mode: The new fip mode
+ *
+ * Note that the we shouldn't be changing the libfc discovery settings
+ * (fc_disc_config) while an lport is going through the libfc state
+ * machine. The mode can only be changed when a fcoe_ctlr device is
+ * disabled, so that should ensure that this routine is only called
+ * when nothing is happening.
+ */
+void fcoe_ctlr_mode_set(struct fc_lport *lport, struct fcoe_ctlr *fip,
+			enum fip_state fip_mode)
+{
+	void *priv;
+
+	WARN_ON(lport->state != LPORT_ST_RESET &&
+		lport->state != LPORT_ST_DISABLED);
+
+	if (fip_mode == FIP_MODE_VN2VN) {
+		lport->rport_priv_size = sizeof(struct fcoe_rport);
+		lport->point_to_multipoint = 1;
+		lport->tt.disc_recv_req = fcoe_ctlr_disc_recv;
+		lport->tt.disc_start = fcoe_ctlr_disc_start;
+		lport->tt.disc_stop = fcoe_ctlr_disc_stop;
+		lport->tt.disc_stop_final = fcoe_ctlr_disc_stop_final;
+		priv = fip;
+	} else {
+		lport->rport_priv_size = 0;
+		lport->point_to_multipoint = 0;
+		lport->tt.disc_recv_req = NULL;
+		lport->tt.disc_start = NULL;
+		lport->tt.disc_stop = NULL;
+		lport->tt.disc_stop_final = NULL;
+		priv = lport;
+	}
+
+	fc_disc_config(lport, priv);
+}
+
+/**
  * fcoe_libfc_config() - Sets up libfc related properties for local port
  * @lport:    The local port to configure libfc for
  * @fip:      The FCoE controller in use by the local port
@@ -2833,21 +2874,9 @@ int fcoe_libfc_config(struct fc_lport *lport, struct fcoe_ctlr *fip,
 	fc_exch_init(lport);
 	fc_elsct_init(lport);
 	fc_lport_init(lport);
-	if (fip->mode == FIP_MODE_VN2VN)
-		lport->rport_priv_size = sizeof(struct fcoe_rport);
 	fc_rport_init(lport);
-	if (fip->mode == FIP_MODE_VN2VN) {
-		lport->point_to_multipoint = 1;
-		lport->tt.disc_recv_req = fcoe_ctlr_disc_recv;
-		lport->tt.disc_start = fcoe_ctlr_disc_start;
-		lport->tt.disc_stop = fcoe_ctlr_disc_stop;
-		lport->tt.disc_stop_final = fcoe_ctlr_disc_stop_final;
-		mutex_init(&lport->disc.disc_mutex);
-		INIT_LIST_HEAD(&lport->disc.rports);
-		lport->disc.priv = fip;
-	} else {
-		fc_disc_init(lport);
-	}
+	fc_disc_init(lport);
+	fcoe_ctlr_mode_set(lport, fip, fip->mode);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(fcoe_libfc_config);
@@ -2875,6 +2904,7 @@ EXPORT_SYMBOL(fcoe_fcf_get_selected);
 void fcoe_ctlr_set_fip_mode(struct fcoe_ctlr_device *ctlr_dev)
 {
 	struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+	struct fc_lport *lport = ctlr->lp;
 
 	mutex_lock(&ctlr->ctlr_mutex);
 	switch (ctlr_dev->mode) {
@@ -2888,5 +2918,7 @@ void fcoe_ctlr_set_fip_mode(struct fcoe_ctlr_device *ctlr_dev)
 	}
 
 	mutex_unlock(&ctlr->ctlr_mutex);
+
+	fcoe_ctlr_mode_set(lport, ctlr, ctlr->mode);
 }
 EXPORT_SYMBOL(fcoe_ctlr_set_fip_mode);
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index 8e561e6a557c..880a9068ca12 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -712,12 +712,13 @@ static void fc_disc_stop_final(struct fc_lport *lport)
 }
 
 /**
- * fc_disc_init() - Initialize the discovery layer for a local port
- * @lport: The local port that needs the discovery layer to be initialized
+ * fc_disc_config() - Configure the discovery layer for a local port
+ * @lport: The local port that needs the discovery layer to be configured
+ * @priv: Private data structre for users of the discovery layer
  */
-int fc_disc_init(struct fc_lport *lport)
+void fc_disc_config(struct fc_lport *lport, void *priv)
 {
-	struct fc_disc *disc;
+	struct fc_disc *disc = &lport->disc;
 
 	if (!lport->tt.disc_start)
 		lport->tt.disc_start = fc_disc_start;
@@ -732,12 +733,21 @@ int fc_disc_init(struct fc_lport *lport)
 		lport->tt.disc_recv_req = fc_disc_recv_req;
 
 	disc = &lport->disc;
+
+	disc->priv = priv;
+}
+EXPORT_SYMBOL(fc_disc_config);
+
+/**
+ * fc_disc_init() - Initialize the discovery layer for a local port
+ * @lport: The local port that needs the discovery layer to be initialized
+ */
+void fc_disc_init(struct fc_lport *lport)
+{
+	struct fc_disc *disc = &lport->disc;
+
 	INIT_DELAYED_WORK(&disc->disc_work, fc_disc_timeout);
 	mutex_init(&disc->disc_mutex);
 	INIT_LIST_HEAD(&disc->rports);
-
-	disc->priv = lport;
-
-	return 0;
 }
 EXPORT_SYMBOL(fc_disc_init);
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 63203acef812..0264704a52be 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -858,6 +858,7 @@ static void sh_mobile_lcdc_geometry(struct sh_mobile_lcdc_chan *ch)
 	tmp = ((mode->xres & 7) << 24) | ((display_h_total & 7) << 16)
 	    | ((mode->hsync_len & 7) << 8) | (hsync_pos & 7);
 	lcdc_write_chan(ch, LDHAJR, tmp);
+	lcdc_write_chan_mirror(ch, LDHAJR, tmp);
 }
 
 static void sh_mobile_lcdc_overlay_setup(struct sh_mobile_lcdc_overlay *ovl)