Merge 3.13-rc5 into usb-next

This resolves the merge issue with drivers/usb/host/ohci-at91.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

98 files changed, 632 insertions, 438 deletions

diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 26311f23c824..cb1d557fc22c 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -942,6 +942,7 @@ static int erst_clearer(enum pstore_type_id type, u64 id, int count,
 static struct pstore_info erst_info = {
 	.owner		= THIS_MODULE,
 	.name		= "erst",
+	.flags		= PSTORE_FLAGS_FRAGILE,
 	.open		= erst_open_pstore,
 	.close		= erst_close_pstore,
 	.read		= erst_reader,
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 7be41e676a64..00a3abe103a5 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -60,7 +60,7 @@ static int s2mps11_clk_prepare(struct clk_hw *hw)
 	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
 	int ret;
 
-	ret = regmap_update_bits(s2mps11->iodev->regmap,
+	ret = regmap_update_bits(s2mps11->iodev->regmap_pmic,
 				S2MPS11_REG_RTC_CTRL,
 				 s2mps11->mask, s2mps11->mask);
 	if (!ret)
@@ -74,7 +74,7 @@ static void s2mps11_clk_unprepare(struct clk_hw *hw)
 	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
 	int ret;
 
-	ret = regmap_update_bits(s2mps11->iodev->regmap, S2MPS11_REG_RTC_CTRL,
+	ret = regmap_update_bits(s2mps11->iodev->regmap_pmic, S2MPS11_REG_RTC_CTRL,
 			   s2mps11->mask, ~s2mps11->mask);
 
 	if (!ret)
@@ -174,7 +174,7 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
 		s2mps11_clk->hw.init = &s2mps11_clks_init[i];
 		s2mps11_clk->mask = 1 << i;
 
-		ret = regmap_read(s2mps11_clk->iodev->regmap,
+		ret = regmap_read(s2mps11_clk->iodev->regmap_pmic,
 				  S2MPS11_REG_RTC_CTRL, &val);
 		if (ret < 0)
 			goto err_reg;
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 5c07a56962db..634c4d6dd45a 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -75,6 +75,7 @@ config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 config CLKSRC_EFM32
 	bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 	depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
+	select CLKSRC_MMIO
 	default ARCH_EFM32
 	help
 	  Support to use the timers of EFM32 SoCs as clock source and clock
diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c
index 35639cf4e5a2..b9ddd9e3a2f5 100644
--- a/drivers/clocksource/clksrc-of.c
+++ b/drivers/clocksource/clksrc-of.c
@@ -35,6 +35,5 @@ void __init clocksource_of_init(void)
 
 		init_func = match->data;
 		init_func(np);
-		of_node_put(np);
 	}
 }
diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c
index 45ba8aecc729..2a2ea2717f3a 100644
--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -108,12 +108,11 @@ static void __init add_clocksource(struct device_node *source_timer)
 
 static u64 read_sched_clock(void)
 {
-	return __raw_readl(sched_io_base);
+	return ~__raw_readl(sched_io_base);
 }
 
 static const struct of_device_id sptimer_ids[] __initconst = {
 	{ .compatible = "picochip,pc3x2-rtc" },
-	{ .compatible = "snps,dw-apb-timer-sp" },
 	{ /* Sentinel */ },
 };
 
@@ -151,4 +150,6 @@ static void __init dw_apb_timer_init(struct device_node *timer)
 	num_called++;
 }
 CLOCKSOURCE_OF_DECLARE(pc3x2_timer, "picochip,pc3x2-timer", dw_apb_timer_init);
-CLOCKSOURCE_OF_DECLARE(apb_timer, "snps,dw-apb-timer-osc", dw_apb_timer_init);
+CLOCKSOURCE_OF_DECLARE(apb_timer_osc, "snps,dw-apb-timer-osc", dw_apb_timer_init);
+CLOCKSOURCE_OF_DECLARE(apb_timer_sp, "snps,dw-apb-timer-sp", dw_apb_timer_init);
+CLOCKSOURCE_OF_DECLARE(apb_timer, "snps,dw-apb-timer", dw_apb_timer_init);
diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
index 2fb4695a28d8..a4f6119aafd8 100644
--- a/drivers/clocksource/sun4i_timer.c
+++ b/drivers/clocksource/sun4i_timer.c
@@ -179,6 +179,9 @@ static void __init sun4i_timer_init(struct device_node *node)
 	writel(TIMER_CTL_CLK_SRC(TIMER_CTL_CLK_SRC_OSC24M),
 	       timer_base + TIMER_CTL_REG(0));
 
+	/* Make sure timer is stopped before playing with interrupts */
+	sun4i_clkevt_time_stop(0);
+
 	ret = setup_irq(irq, &sun4i_timer_irq);
 	if (ret)
 		pr_warn("failed to setup irq %d\n", irq);
diff --git a/drivers/clocksource/time-armada-370-xp.c b/drivers/clocksource/time-armada-370-xp.c
index d8e47e502785..4e7f6802e840 100644
--- a/drivers/clocksource/time-armada-370-xp.c
+++ b/drivers/clocksource/time-armada-370-xp.c
@@ -256,11 +256,6 @@ static void __init armada_370_xp_timer_common_init(struct device_node *np)
 	ticks_per_jiffy = (timer_clk + HZ / 2) / HZ;
 
 	/*
-	 * Set scale and timer for sched_clock.
-	 */
-	sched_clock_register(armada_370_xp_read_sched_clock, 32, timer_clk);
-
-	/*
 	 * Setup free-running clocksource timer (interrupts
 	 * disabled).
 	 */
@@ -270,6 +265,11 @@ static void __init armada_370_xp_timer_common_init(struct device_node *np)
 	timer_ctrl_clrset(0, TIMER0_EN | TIMER0_RELOAD_EN |
 			     TIMER0_DIV(TIMER_DIVIDER_SHIFT));
 
+	/*
+	 * Set scale and timer for sched_clock.
+	 */
+	sched_clock_register(armada_370_xp_read_sched_clock, 32, timer_clk);
+
 	clocksource_mmio_init(timer_base + TIMER0_VAL_OFF,
 			      "armada_370_xp_clocksource",
 			      timer_clk, 300, 32, clocksource_mmio_readl_down);
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 446687cc2334..c823daaf9043 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -62,6 +62,7 @@ config INTEL_IOATDMA
 	tristate "Intel I/OAT DMA support"
 	depends on PCI && X86
 	select DMA_ENGINE
+	select DMA_ENGINE_RAID
 	select DCA
 	help
 	  Enable support for the Intel(R) I/OAT DMA engine present
@@ -112,6 +113,7 @@ config MV_XOR
 	bool "Marvell XOR engine support"
 	depends on PLAT_ORION
 	select DMA_ENGINE
+	select DMA_ENGINE_RAID
 	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 	---help---
 	  Enable support for the Marvell XOR engine.
@@ -187,6 +189,7 @@ config AMCC_PPC440SPE_ADMA
 	tristate "AMCC PPC440SPe ADMA support"
 	depends on 440SPe || 440SP
 	select DMA_ENGINE
+	select DMA_ENGINE_RAID
 	select ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 	help
@@ -352,6 +355,7 @@ config NET_DMA
 	bool "Network: TCP receive copy offload"
 	depends on DMA_ENGINE && NET
 	default (INTEL_IOATDMA || FSL_DMA)
+	depends on BROKEN
 	help
 	  This enables the use of DMA engines in the network stack to
 	  offload receive copy-to-user operations, freeing CPU cycles.
@@ -377,4 +381,7 @@ config DMATEST
 	  Simple DMA test client. Say N unless you're debugging a
 	  DMA Device driver.
 
+config DMA_ENGINE_RAID
+	bool
+
 endif
diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
index f31d647acdfa..2787aba60c6b 100644
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -347,10 +347,6 @@ static struct device *chan2dev(struct dma_chan *chan)
 {
 	return &chan->dev->device;
 }
-static struct device *chan2parent(struct dma_chan *chan)
-{
-	return chan->dev->device.parent;
-}
 
 #if defined(VERBOSE_DEBUG)
 static void vdbg_dump_regs(struct at_dma_chan *atchan)
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index ea806bdc12ef..ef63b9058f3c 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -912,7 +912,7 @@ struct dmaengine_unmap_pool {
 #define __UNMAP_POOL(x) { .size = x, .name = "dmaengine-unmap-" __stringify(x) }
 static struct dmaengine_unmap_pool unmap_pool[] = {
 	__UNMAP_POOL(2),
-	#if IS_ENABLED(CONFIG_ASYNC_TX_DMA)
+	#if IS_ENABLED(CONFIG_DMA_ENGINE_RAID)
 	__UNMAP_POOL(16),
 	__UNMAP_POOL(128),
 	__UNMAP_POOL(256),
@@ -1054,7 +1054,7 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
 	dma_cookie_t cookie;
 	unsigned long flags;
 
-	unmap = dmaengine_get_unmap_data(dev->dev, 2, GFP_NOIO);
+	unmap = dmaengine_get_unmap_data(dev->dev, 2, GFP_NOWAIT);
 	if (!unmap)
 		return -ENOMEM;
 
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 20f9a3aaf926..9dfcaf5c1288 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -539,9 +539,9 @@ static int dmatest_func(void *data)
 
 		um->len = params->buf_size;
 		for (i = 0; i < src_cnt; i++) {
-			unsigned long buf = (unsigned long) thread->srcs[i];
+			void *buf = thread->srcs[i];
 			struct page *pg = virt_to_page(buf);
-			unsigned pg_off = buf & ~PAGE_MASK;
+			unsigned pg_off = (unsigned long) buf & ~PAGE_MASK;
 
 			um->addr[i] = dma_map_page(dev->dev, pg, pg_off,
 						   um->len, DMA_TO_DEVICE);
@@ -559,9 +559,9 @@ static int dmatest_func(void *data)
 		/* map with DMA_BIDIRECTIONAL to force writeback/invalidate */
 		dsts = &um->addr[src_cnt];
 		for (i = 0; i < dst_cnt; i++) {
-			unsigned long buf = (unsigned long) thread->dsts[i];
+			void *buf = thread->dsts[i];
 			struct page *pg = virt_to_page(buf);
-			unsigned pg_off = buf & ~PAGE_MASK;
+			unsigned pg_off = (unsigned long) buf & ~PAGE_MASK;
 
 			dsts[i] = dma_map_page(dev->dev, pg, pg_off, um->len,
 					       DMA_BIDIRECTIONAL);
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 7086a16a55f2..f157c6f76b32 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -86,11 +86,6 @@ static void set_desc_cnt(struct fsldma_chan *chan,
 	hw->count = CPU_TO_DMA(chan, count, 32);
 }
 
-static u32 get_desc_cnt(struct fsldma_chan *chan, struct fsl_desc_sw *desc)
-{
-	return DMA_TO_CPU(chan, desc->hw.count, 32);
-}
-
 static void set_desc_src(struct fsldma_chan *chan,
 			 struct fsl_dma_ld_hw *hw, dma_addr_t src)
 {
@@ -101,16 +96,6 @@ static void set_desc_src(struct fsldma_chan *chan,
 	hw->src_addr = CPU_TO_DMA(chan, snoop_bits | src, 64);
 }
 
-static dma_addr_t get_desc_src(struct fsldma_chan *chan,
-			       struct fsl_desc_sw *desc)
-{
-	u64 snoop_bits;
-
-	snoop_bits = ((chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX)
-		? ((u64)FSL_DMA_SATR_SREADTYPE_SNOOP_READ << 32) : 0;
-	return DMA_TO_CPU(chan, desc->hw.src_addr, 64) & ~snoop_bits;
-}
-
 static void set_desc_dst(struct fsldma_chan *chan,
 			 struct fsl_dma_ld_hw *hw, dma_addr_t dst)
 {
@@ -121,16 +106,6 @@ static void set_desc_dst(struct fsldma_chan *chan,
 	hw->dst_addr = CPU_TO_DMA(chan, snoop_bits | dst, 64);
 }
 
-static dma_addr_t get_desc_dst(struct fsldma_chan *chan,
-			       struct fsl_desc_sw *desc)
-{
-	u64 snoop_bits;
-
-	snoop_bits = ((chan->feature & FSL_DMA_IP_MASK) == FSL_DMA_IP_85XX)
-		? ((u64)FSL_DMA_DATR_DWRITETYPE_SNOOP_WRITE << 32) : 0;
-	return DMA_TO_CPU(chan, desc->hw.dst_addr, 64) & ~snoop_bits;
-}
-
 static void set_desc_next(struct fsldma_chan *chan,
 			  struct fsl_dma_ld_hw *hw, dma_addr_t next)
 {
@@ -408,7 +383,7 @@ static dma_cookie_t fsl_dma_tx_submit(struct dma_async_tx_descriptor *tx)
 	struct fsl_desc_sw *desc = tx_to_fsl_desc(tx);
 	struct fsl_desc_sw *child;
 	unsigned long flags;
-	dma_cookie_t cookie;
+	dma_cookie_t cookie = -EINVAL;
 
 	spin_lock_irqsave(&chan->desc_lock, flags);
 
@@ -854,10 +829,6 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan,
 				      struct fsl_desc_sw *desc)
 {
 	struct dma_async_tx_descriptor *txd = &desc->async_tx;
-	struct device *dev = chan->common.device->dev;
-	dma_addr_t src = get_desc_src(chan, desc);
-	dma_addr_t dst = get_desc_dst(chan, desc);
-	u32 len = get_desc_cnt(chan, desc);
 
 	/* Run the link descriptor callback function */
 	if (txd->callback) {
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 7807f0ef4e20..53fb0c8365b0 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -54,12 +54,6 @@ static void mv_desc_init(struct mv_xor_desc_slot *desc, unsigned long flags)
 	hw_desc->desc_command = (1 << 31);
 }
 
-static u32 mv_desc_get_dest_addr(struct mv_xor_desc_slot *desc)
-{
-	struct mv_xor_desc *hw_desc = desc->hw_desc;
-	return hw_desc->phy_dest_addr;
-}
-
 static void mv_desc_set_byte_count(struct mv_xor_desc_slot *desc,
 				   u32 byte_count)
 {
@@ -787,7 +781,6 @@ static void mv_xor_issue_pending(struct dma_chan *chan)
 /*
  * Perform a transaction to verify the HW works.
  */
-#define MV_XOR_TEST_SIZE 2000
 
 static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
 {
@@ -797,20 +790,21 @@ static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
 	struct dma_chan *dma_chan;
 	dma_cookie_t cookie;
 	struct dma_async_tx_descriptor *tx;
+	struct dmaengine_unmap_data *unmap;
 	int err = 0;
 
-	src = kmalloc(sizeof(u8) * MV_XOR_TEST_SIZE, GFP_KERNEL);
+	src = kmalloc(sizeof(u8) * PAGE_SIZE, GFP_KERNEL);
 	if (!src)
 		return -ENOMEM;
 
-	dest = kzalloc(sizeof(u8) * MV_XOR_TEST_SIZE, GFP_KERNEL);
+	dest = kzalloc(sizeof(u8) * PAGE_SIZE, GFP_KERNEL);
 	if (!dest) {
 		kfree(src);
 		return -ENOMEM;
 	}
 
 	/* Fill in src buffer */
-	for (i = 0; i < MV_XOR_TEST_SIZE; i++)
+	for (i = 0; i < PAGE_SIZE; i++)
 		((u8 *) src)[i] = (u8)i;
 
 	dma_chan = &mv_chan->dmachan;
@@ -819,14 +813,26 @@ static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
 		goto out;
 	}
 
-	dest_dma = dma_map_single(dma_chan->device->dev, dest,
-				  MV_XOR_TEST_SIZE, DMA_FROM_DEVICE);
+	unmap = dmaengine_get_unmap_data(dma_chan->device->dev, 2, GFP_KERNEL);
+	if (!unmap) {
+		err = -ENOMEM;
+		goto free_resources;
+	}
+
+	src_dma = dma_map_page(dma_chan->device->dev, virt_to_page(src), 0,
+				 PAGE_SIZE, DMA_TO_DEVICE);
+	unmap->to_cnt = 1;
+	unmap->addr[0] = src_dma;
 
-	src_dma = dma_map_single(dma_chan->device->dev, src,
-				 MV_XOR_TEST_SIZE, DMA_TO_DEVICE);
+	dest_dma = dma_map_page(dma_chan->device->dev, virt_to_page(dest), 0,
+				  PAGE_SIZE, DMA_FROM_DEVICE);
+	unmap->from_cnt = 1;
+	unmap->addr[1] = dest_dma;
+
+	unmap->len = PAGE_SIZE;
 
 	tx = mv_xor_prep_dma_memcpy(dma_chan, dest_dma, src_dma,
-				    MV_XOR_TEST_SIZE, 0);
+				    PAGE_SIZE, 0);
 	cookie = mv_xor_tx_submit(tx);
 	mv_xor_issue_pending(dma_chan);
 	async_tx_ack(tx);
@@ -841,8 +847,8 @@ static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
 	}
 
 	dma_sync_single_for_cpu(dma_chan->device->dev, dest_dma,
-				MV_XOR_TEST_SIZE, DMA_FROM_DEVICE);
-	if (memcmp(src, dest, MV_XOR_TEST_SIZE)) {
+				PAGE_SIZE, DMA_FROM_DEVICE);
+	if (memcmp(src, dest, PAGE_SIZE)) {
 		dev_err(dma_chan->device->dev,
 			"Self-test copy failed compare, disabling\n");
 		err = -ENODEV;
@@ -850,6 +856,7 @@ static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
 	}
 
 free_resources:
+	dmaengine_unmap_put(unmap);
 	mv_xor_free_chan_resources(dma_chan);
 out:
 	kfree(src);
@@ -867,13 +874,15 @@ mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
 	dma_addr_t dma_srcs[MV_XOR_NUM_SRC_TEST];
 	dma_addr_t dest_dma;
 	struct dma_async_tx_descriptor *tx;
+	struct dmaengine_unmap_data *unmap;
 	struct dma_chan *dma_chan;
 	dma_cookie_t cookie;
 	u8 cmp_byte = 0;
 	u32 cmp_word;
 	int err = 0;
+	int src_count = MV_XOR_NUM_SRC_TEST;
 
-	for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) {
+	for (src_idx = 0; src_idx < src_count; src_idx++) {
 		xor_srcs[src_idx] = alloc_page(GFP_KERNEL);
 		if (!xor_srcs[src_idx]) {
 			while (src_idx--)
@@ -890,13 +899,13 @@ mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
 	}
 
 	/* Fill in src buffers */
-	for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) {
+	for (src_idx = 0; src_idx < src_count; src_idx++) {
 		u8 *ptr = page_address(xor_srcs[src_idx]);
 		for (i = 0; i < PAGE_SIZE; i++)
 			ptr[i] = (1 << src_idx);
 	}
 
-	for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++)
+	for (src_idx = 0; src_idx < src_count; src_idx++)
 		cmp_byte ^= (u8) (1 << src_idx);
 
 	cmp_word = (cmp_byte << 24) | (cmp_byte << 16) |
@@ -910,16 +919,29 @@ mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
 		goto out;
 	}
 
+	unmap = dmaengine_get_unmap_data(dma_chan->device->dev, src_count + 1,
+					 GFP_KERNEL);
+	if (!unmap) {
+		err = -ENOMEM;
+		goto free_resources;
+	}
+
 	/* test xor */
-	dest_dma = dma_map_page(dma_chan->device->dev, dest, 0, PAGE_SIZE,
-				DMA_FROM_DEVICE);
+	for (i = 0; i < src_count; i++) {
+		unmap->addr[i] = dma_map_page(dma_chan->device->dev, xor_srcs[i],
+					      0, PAGE_SIZE, DMA_TO_DEVICE);
+		dma_srcs[i] = unmap->addr[i];
+		unmap->to_cnt++;
+	}
 
-	for (i = 0; i < MV_XOR_NUM_SRC_TEST; i++)
-		dma_srcs[i] = dma_map_page(dma_chan->device->dev, xor_srcs[i],
-					   0, PAGE_SIZE, DMA_TO_DEVICE);
+	unmap->addr[src_count] = dma_map_page(dma_chan->device->dev, dest, 0, PAGE_SIZE,
+				      DMA_FROM_DEVICE);
+	dest_dma = unmap->addr[src_count];
+	unmap->from_cnt = 1;
+	unmap->len = PAGE_SIZE;
 
 	tx = mv_xor_prep_dma_xor(dma_chan, dest_dma, dma_srcs,
-				 MV_XOR_NUM_SRC_TEST, PAGE_SIZE, 0);
+				 src_count, PAGE_SIZE, 0);
 
 	cookie = mv_xor_tx_submit(tx);
 	mv_xor_issue_pending(dma_chan);
@@ -948,9 +970,10 @@ mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
 	}
 
 free_resources:
+	dmaengine_unmap_put(unmap);
 	mv_xor_free_chan_resources(dma_chan);
 out:
-	src_idx = MV_XOR_NUM_SRC_TEST;
+	src_idx = src_count;
 	while (src_idx--)
 		__free_page(xor_srcs[src_idx]);
 	__free_page(dest);
@@ -1176,6 +1199,7 @@ static int mv_xor_probe(struct platform_device *pdev)
 		int i = 0;
 
 		for_each_child_of_node(pdev->dev.of_node, np) {
+			struct mv_xor_chan *chan;
 			dma_cap_mask_t cap_mask;
 			int irq;
 
@@ -1193,21 +1217,21 @@ static int mv_xor_probe(struct platform_device *pdev)
 				goto err_channel_add;
 			}
 
-			xordev->channels[i] =
-				mv_xor_channel_add(xordev, pdev, i,
-						   cap_mask, irq);
-			if (IS_ERR(xordev->channels[i])) {
-				ret = PTR_ERR(xordev->channels[i]);
-				xordev->channels[i] = NULL;
+			chan = mv_xor_channel_add(xordev, pdev, i,
+						  cap_mask, irq);
+			if (IS_ERR(chan)) {
+				ret = PTR_ERR(chan);
 				irq_dispose_mapping(irq);
 				goto err_channel_add;
 			}
 
+			xordev->channels[i] = chan;
 			i++;
 		}
 	} else if (pdata && pdata->channels) {
 		for (i = 0; i < MV_XOR_MAX_CHANNELS; i++) {
 			struct mv_xor_channel_data *cd;
+			struct mv_xor_chan *chan;
 			int irq;
 
 			cd = &pdata->channels[i];
@@ -1222,13 +1246,14 @@ static int mv_xor_probe(struct platform_device *pdev)
 				goto err_channel_add;
 			}
 
-			xordev->channels[i] =
-				mv_xor_channel_add(xordev, pdev, i,
-						   cd->cap_mask, irq);
-			if (IS_ERR(xordev->channels[i])) {
-				ret = PTR_ERR(xordev->channels[i]);
+			chan = mv_xor_channel_add(xordev, pdev, i,
+						  cd->cap_mask, irq);
+			if (IS_ERR(chan)) {
+				ret = PTR_ERR(chan);
 				goto err_channel_add;
 			}
+
+			xordev->channels[i] = chan;
 		}
 	}
 
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index cdf0483b8f2d..536632f6479c 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2492,12 +2492,9 @@ static dma_cookie_t pl330_tx_submit(struct dma_async_tx_descriptor *tx)
 
 static inline void _init_desc(struct dma_pl330_desc *desc)
 {
-	desc->pchan = NULL;
 	desc->req.x = &desc->px;
 	desc->req.token = desc;
 	desc->rqcfg.swap = SWAP_NO;
-	desc->rqcfg.privileged = 0;
-	desc->rqcfg.insnaccess = 0;
 	desc->rqcfg.scctl = SCCTRL0;
 	desc->rqcfg.dcctl = DCCTRL0;
 	desc->req.cfg = &desc->rqcfg;
@@ -2517,7 +2514,7 @@ static int add_desc(struct dma_pl330_dmac *pdmac, gfp_t flg, int count)
 	if (!pdmac)
 		return 0;
 
-	desc = kmalloc(count * sizeof(*desc), flg);
+	desc = kcalloc(count, sizeof(*desc), flg);
 	if (!desc)
 		return 0;
 
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 8da48c6b2a38..8bba298535b0 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -533,29 +533,6 @@ static void ppc440spe_desc_init_memcpy(struct ppc440spe_adma_desc_slot *desc,
 }
 
 /**
- * ppc440spe_desc_init_memset - initialize the descriptor for MEMSET operation
- */
-static void ppc440spe_desc_init_memset(struct ppc440spe_adma_desc_slot *desc,
-					int value, unsigned long flags)
-{
-	struct dma_cdb *hw_desc = desc->hw_desc;
-
-	memset(desc->hw_desc, 0, sizeof(struct dma_cdb));
-	desc->hw_next = NULL;
-	desc->src_cnt = 1;
-	desc->dst_cnt = 1;
-
-	if (flags & DMA_PREP_INTERRUPT)
-		set_bit(PPC440SPE_DESC_INT, &desc->flags);
-	else
-		clear_bit(PPC440SPE_DESC_INT, &desc->flags);
-
-	hw_desc->sg1u = hw_desc->sg1l = cpu_to_le32((u32)value);
-	hw_desc->sg3u = hw_desc->sg3l = cpu_to_le32((u32)value);
-	hw_desc->opc = DMA_CDB_OPC_DFILL128;
-}
-
-/**
  * ppc440spe_desc_set_src_addr - set source address into the descriptor
  */
 static void ppc440spe_desc_set_src_addr(struct ppc440spe_adma_desc_slot *desc,
@@ -1504,8 +1481,6 @@ static dma_cookie_t ppc440spe_adma_run_tx_complete_actions(
 		struct ppc440spe_adma_chan *chan,
 		dma_cookie_t cookie)
 {
-	int i;
-
 	BUG_ON(desc->async_tx.cookie < 0);
 	if (desc->async_tx.cookie > 0) {
 		cookie = desc->async_tx.cookie;
@@ -3898,7 +3873,7 @@ static void ppc440spe_adma_init_capabilities(struct ppc440spe_adma_device *adev)
 			ppc440spe_adma_prep_dma_interrupt;
 	}
 	pr_info("%s: AMCC(R) PPC440SP(E) ADMA Engine: "
-	  "( %s%s%s%s%s%s%s)\n",
+	  "( %s%s%s%s%s%s)\n",
 	  dev_name(adev->dev),
 	  dma_has_cap(DMA_PQ, adev->common.cap_mask) ? "pq " : "",
 	  dma_has_cap(DMA_PQ_VAL, adev->common.cap_mask) ? "pq_val " : "",
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index bae6c29f5502..17686caf64d5 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -406,7 +406,6 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc,
 	dma_async_tx_callback callback;
 	void *param;
 	struct dma_async_tx_descriptor *txd = &desc->txd;
-	struct txx9dmac_slave *ds = dc->chan.private;
 
 	dev_vdbg(chan2dev(&dc->chan), "descriptor %u %p complete\n",
 		 txd->cookie, desc);
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index b0bb056458a3..281029daf98c 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -1623,7 +1623,6 @@ static struct scsi_host_template scsi_driver_template = {
 	.cmd_per_lun		= 1,
 	.can_queue		= 1,
 	.sdev_attrs		= sbp2_scsi_sysfs_attrs,
-	.no_write_same		= 1,
 };
 
 MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>");
diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index 743fd426f21b..4b9dc836dcf9 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -356,6 +356,7 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
 static struct pstore_info efi_pstore_info = {
 	.owner		= THIS_MODULE,
 	.name		= "efi",
+	.flags		= PSTORE_FLAGS_FRAGILE,
 	.open		= efi_pstore_open,
 	.close		= efi_pstore_close,
 	.read		= efi_pstore_read,
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 7b37300973db..2baf0ddf7e02 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -252,7 +252,7 @@ static void msm_gpio_irq_mask(struct irq_data *d)
 
 	spin_lock_irqsave(&tlmm_lock, irq_flags);
 	writel(TARGET_PROC_NONE, GPIO_INTR_CFG_SU(gpio));
-	clear_gpio_bits(INTR_RAW_STATUS_EN | INTR_ENABLE, GPIO_INTR_CFG(gpio));
+	clear_gpio_bits(BIT(INTR_RAW_STATUS_EN) | BIT(INTR_ENABLE), GPIO_INTR_CFG(gpio));
 	__clear_bit(gpio, msm_gpio.enabled_irqs);
 	spin_unlock_irqrestore(&tlmm_lock, irq_flags);
 }
@@ -264,7 +264,7 @@ static void msm_gpio_irq_unmask(struct irq_data *d)
 
 	spin_lock_irqsave(&tlmm_lock, irq_flags);
 	__set_bit(gpio, msm_gpio.enabled_irqs);
-	set_gpio_bits(INTR_RAW_STATUS_EN | INTR_ENABLE, GPIO_INTR_CFG(gpio));
+	set_gpio_bits(BIT(INTR_RAW_STATUS_EN) | BIT(INTR_ENABLE), GPIO_INTR_CFG(gpio));
 	writel(TARGET_PROC_SCORPION, GPIO_INTR_CFG_SU(gpio));
 	spin_unlock_irqrestore(&tlmm_lock, irq_flags);
 }
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index fe088a30567a..8b7e719a68c3 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -169,7 +169,8 @@ static irqreturn_t gpio_rcar_irq_handler(int irq, void *dev_id)
 	u32 pending;
 	unsigned int offset, irqs_handled = 0;
 
-	while ((pending = gpio_rcar_read(p, INTDT))) {
+	while ((pending = gpio_rcar_read(p, INTDT) &
+			  gpio_rcar_read(p, INTMSK))) {
 		offset = __ffs(pending);
 		gpio_rcar_write(p, INTCLR, BIT(offset));
 		generic_handle_irq(irq_find_mapping(p->irq_domain, offset));
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index b97d6a6577b9..f9996899c1f2 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -300,7 +300,7 @@ static int twl_direction_in(struct gpio_chip *chip, unsigned offset)
 	if (offset < TWL4030_GPIO_MAX)
 		ret = twl4030_set_gpio_direction(offset, 1);
 	else
-		ret = -EINVAL;
+		ret = -EINVAL;	/* LED outputs can't be set as input */
 
 	if (!ret)
 		priv->direction &= ~BIT(offset);
@@ -354,11 +354,20 @@ static void twl_set(struct gpio_chip *chip, unsigned offset, int value)
 static int twl_direction_out(struct gpio_chip *chip, unsigned offset, int value)
 {
 	struct gpio_twl4030_priv *priv = to_gpio_twl4030(chip);
-	int ret = -EINVAL;
+	int ret = 0;
 
 	mutex_lock(&priv->mutex);
-	if (offset < TWL4030_GPIO_MAX)
+	if (offset < TWL4030_GPIO_MAX) {
 		ret = twl4030_set_gpio_direction(offset, 0);
+		if (ret) {
+			mutex_unlock(&priv->mutex);
+			return ret;
+		}
+	}
+
+	/*
+	 *  LED gpios i.e. offset >= TWL4030_GPIO_MAX are always output
+	 */
 
 	priv->direction |= BIT(offset);
 	mutex_unlock(&priv->mutex);
diff --git a/drivers/gpu/drm/armada/armada_drm.h b/drivers/gpu/drm/armada/armada_drm.h
index eef09ec9a5ff..a72cae03b99b 100644
--- a/drivers/gpu/drm/armada/armada_drm.h
+++ b/drivers/gpu/drm/armada/armada_drm.h
@@ -103,6 +103,7 @@ void armada_drm_queue_unref_work(struct drm_device *,
 extern const struct drm_mode_config_funcs armada_drm_mode_config_funcs;
 
 int armada_fbdev_init(struct drm_device *);
+void armada_fbdev_lastclose(struct drm_device *);
 void armada_fbdev_fini(struct drm_device *);
 
 int armada_overlay_plane_create(struct drm_device *, unsigned long);
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 4f2b28354915..62d0ff3efddf 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -321,6 +321,11 @@ static struct drm_ioctl_desc armada_ioctls[] = {
 		DRM_UNLOCKED),
 };
 
+static void armada_drm_lastclose(struct drm_device *dev)
+{
+	armada_fbdev_lastclose(dev);
+}
+
 static const struct file_operations armada_drm_fops = {
 	.owner			= THIS_MODULE,
 	.llseek			= no_llseek,
@@ -337,7 +342,7 @@ static struct drm_driver armada_drm_driver = {
 	.open			= NULL,
 	.preclose		= NULL,
 	.postclose		= NULL,
-	.lastclose		= NULL,
+	.lastclose		= armada_drm_lastclose,
 	.unload			= armada_drm_unload,
 	.get_vblank_counter	= drm_vblank_count,
 	.enable_vblank		= armada_drm_enable_vblank,
diff --git a/drivers/gpu/drm/armada/armada_fbdev.c b/drivers/gpu/drm/armada/armada_fbdev.c
index dd5ea77dac96..948cb14c561e 100644
--- a/drivers/gpu/drm/armada/armada_fbdev.c
+++ b/drivers/gpu/drm/armada/armada_fbdev.c
@@ -105,9 +105,9 @@ static int armada_fb_create(struct drm_fb_helper *fbh,
 	drm_fb_helper_fill_fix(info, dfb->fb.pitches[0], dfb->fb.depth);
 	drm_fb_helper_fill_var(info, fbh, sizes->fb_width, sizes->fb_height);
 
-	DRM_DEBUG_KMS("allocated %dx%d %dbpp fb: 0x%08x\n",
-		dfb->fb.width, dfb->fb.height,
-		dfb->fb.bits_per_pixel, obj->phys_addr);
+	DRM_DEBUG_KMS("allocated %dx%d %dbpp fb: 0x%08llx\n",
+		dfb->fb.width, dfb->fb.height, dfb->fb.bits_per_pixel,
+		(unsigned long long)obj->phys_addr);
 
 	return 0;
 
@@ -177,6 +177,16 @@ int armada_fbdev_init(struct drm_device *dev)
 	return ret;
 }
 
+void armada_fbdev_lastclose(struct drm_device *dev)
+{
+	struct armada_private *priv = dev->dev_private;
+
+	drm_modeset_lock_all(dev);
+	if (priv->fbdev)
+		drm_fb_helper_restore_fbdev_mode(priv->fbdev);
+	drm_modeset_unlock_all(dev);
+}
+
 void armada_fbdev_fini(struct drm_device *dev)
 {
 	struct armada_private *priv = dev->dev_private;
@@ -192,11 +202,11 @@ void armada_fbdev_fini(struct drm_device *dev)
 			framebuffer_release(info);
 		}
 
+		drm_fb_helper_fini(fbh);
+
 		if (fbh->fb)
 			fbh->fb->funcs->destroy(fbh->fb);
 
-		drm_fb_helper_fini(fbh);
-
 		priv->fbdev = NULL;
 	}
 }
diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index 9f2356bae7fd..887816f43476 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -172,8 +172,9 @@ armada_gem_linear_back(struct drm_device *dev, struct armada_gem_object *obj)
 		obj->dev_addr = obj->linear->start;
 	}
 
-	DRM_DEBUG_DRIVER("obj %p phys %#x dev %#x\n",
-			 obj, obj->phys_addr, obj->dev_addr);
+	DRM_DEBUG_DRIVER("obj %p phys %#llx dev %#llx\n", obj,
+			 (unsigned long long)obj->phys_addr,
+			 (unsigned long long)obj->dev_addr);
 
 	return 0;
 }
@@ -557,7 +558,6 @@ armada_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
 			 * refcount on the gem object itself.
 			 */
 			drm_gem_object_reference(obj);
-			dma_buf_put(buf);
 			return obj;
 		}
 	}
@@ -573,6 +573,7 @@ armada_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
 	}
 
 	dobj->obj.import_attach = attach;
+	get_dma_buf(buf);
 
 	/*
 	 * Don't call dma_buf_map_attachment() here - it maps the
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 0a1e4a5f4234..8835dcddfac3 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -68,6 +68,8 @@
 #define EDID_QUIRK_DETAILED_SYNC_PP		(1 << 6)
 /* Force reduced-blanking timings for detailed modes */
 #define EDID_QUIRK_FORCE_REDUCED_BLANKING	(1 << 7)
+/* Force 8bpc */
+#define EDID_QUIRK_FORCE_8BPC			(1 << 8)
 
 struct detailed_mode_closure {
 	struct drm_connector *connector;
@@ -128,6 +130,9 @@ static struct edid_quirk {
 
 	/* Medion MD 30217 PG */
 	{ "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 },
+
+	/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
+	{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
 };
 
 /*
@@ -3435,6 +3440,9 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
 
 	drm_add_display_info(edid, &connector->display_info);
 
+	if (quirks & EDID_QUIRK_FORCE_8BPC)
+		connector->display_info.bpc = 8;
+
 	return num_modes;
 }
 EXPORT_SYMBOL(drm_add_edid_modes);
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index f53d5246979c..66dd3a001cf1 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -566,11 +566,11 @@ err_unload:
 	if (dev->driver->unload)
 		dev->driver->unload(dev);
 err_primary_node:
-	drm_put_minor(dev->primary);
+	drm_unplug_minor(dev->primary);
 err_render_node:
-	drm_put_minor(dev->render);
+	drm_unplug_minor(dev->render);
 err_control_node:
-	drm_put_minor(dev->control);
+	drm_unplug_minor(dev->control);
 err_agp:
 	if (dev->driver->bus->agp_destroy)
 		dev->driver->bus->agp_destroy(dev);
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 0cab2d045135..5c648425c1e0 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -83,6 +83,14 @@ void i915_update_dri1_breadcrumb(struct drm_device *dev)
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_master_private *master_priv;
 
+	/*
+	 * The dri breadcrumb update races against the drm master disappearing.
+	 * Instead of trying to fix this (this is by far not the only ums issue)
+	 * just don't do the update in kms mode.
+	 */
+	if (drm_core_check_feature(dev, DRIVER_MODESET))
+		return;
+
 	if (dev->primary->master) {
 		master_priv = dev->primary->master->driver_priv;
 		if (master_priv->sarea_priv)
@@ -1490,16 +1498,9 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 	spin_lock_init(&dev_priv->uncore.lock);
 	spin_lock_init(&dev_priv->mm.object_stat_lock);
 	mutex_init(&dev_priv->dpio_lock);
-	mutex_init(&dev_priv->rps.hw_lock);
 	mutex_init(&dev_priv->modeset_restore_lock);
 
-	mutex_init(&dev_priv->pc8.lock);
-	dev_priv->pc8.requirements_met = false;
-	dev_priv->pc8.gpu_idle = false;
-	dev_priv->pc8.irqs_disabled = false;
-	dev_priv->pc8.enabled = false;
-	dev_priv->pc8.disable_count = 2; /* requirements_met + gpu_idle */
-	INIT_DELAYED_WORK(&dev_priv->pc8.enable_work, hsw_enable_pc8_work);
+	intel_pm_setup(dev);
 
 	intel_display_crc_init(dev);
 
@@ -1603,7 +1604,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 	}
 
 	intel_irq_init(dev);
-	intel_pm_init(dev);
 	intel_uncore_sanitize(dev);
 
 	/* Try to make sure MCHBAR is enabled before poking at it */
@@ -1848,8 +1848,10 @@ void i915_driver_lastclose(struct drm_device * dev)
 
 void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
 {
+	mutex_lock(&dev->struct_mutex);
 	i915_gem_context_close(dev, file_priv);
 	i915_gem_release(dev, file_priv);
+	mutex_unlock(&dev->struct_mutex);
 }
 
 void i915_driver_postclose(struct drm_device *dev, struct drm_file *file)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 2e367a1c6a64..5b7b7e06cb3a 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -651,6 +651,7 @@ static int __i915_drm_thaw(struct drm_device *dev, bool restore_gtt_mappings)
 		intel_modeset_init_hw(dev);
 
 		drm_modeset_lock_all(dev);
+		drm_mode_config_reset(dev);
 		intel_modeset_setup_hw_state(dev, true);
 		drm_modeset_unlock_all(dev);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ccdbecca070d..90fcccba17b0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1755,8 +1755,13 @@ struct drm_i915_file_private {
 #define IS_MOBILE(dev)		(INTEL_INFO(dev)->is_mobile)
 #define IS_HSW_EARLY_SDV(dev)	(IS_HASWELL(dev) && \
 				 ((dev)->pdev->device & 0xFF00) == 0x0C00)
-#define IS_ULT(dev)		(IS_HASWELL(dev) && \
+#define IS_BDW_ULT(dev)		(IS_BROADWELL(dev) && \
+				 (((dev)->pdev->device & 0xf) == 0x2  || \
+				 ((dev)->pdev->device & 0xf) == 0x6 || \
+				 ((dev)->pdev->device & 0xf) == 0xe))
+#define IS_HSW_ULT(dev)		(IS_HASWELL(dev) && \
 				 ((dev)->pdev->device & 0xFF00) == 0x0A00)
+#define IS_ULT(dev)		(IS_HSW_ULT(dev) || IS_BDW_ULT(dev))
 #define IS_HSW_GT3(dev)		(IS_HASWELL(dev) && \
 				 ((dev)->pdev->device & 0x00F0) == 0x0020)
 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
@@ -1901,9 +1906,7 @@ void i915_queue_hangcheck(struct drm_device *dev);
 void i915_handle_error(struct drm_device *dev, bool wedged);
 
 extern void intel_irq_init(struct drm_device *dev);
-extern void intel_pm_init(struct drm_device *dev);
 extern void intel_hpd_init(struct drm_device *dev);
-extern void intel_pm_init(struct drm_device *dev);
 
 extern void intel_uncore_sanitize(struct drm_device *dev);
 extern void intel_uncore_early_sanitize(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 72a3df32292f..b0f42b9ca037 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -347,10 +347,8 @@ void i915_gem_context_close(struct drm_device *dev, struct drm_file *file)
 {
 	struct drm_i915_file_private *file_priv = file->driver_priv;
 
-	mutex_lock(&dev->struct_mutex);
 	idr_for_each(&file_priv->context_idr, context_idr_cleanup, NULL);
 	idr_destroy(&file_priv->context_idr);
-	mutex_unlock(&dev->struct_mutex);
 }
 
 static struct i915_hw_context *
@@ -423,11 +421,21 @@ static int do_switch(struct i915_hw_context *to)
 	if (ret)
 		return ret;
 
-	/* Clear this page out of any CPU caches for coherent swap-in/out. Note
+	/*
+	 * Pin can switch back to the default context if we end up calling into
+	 * evict_everything - as a last ditch gtt defrag effort that also
+	 * switches to the default context. Hence we need to reload from here.
+	 */
+	from = ring->last_context;
+
+	/*
+	 * Clear this page out of any CPU caches for coherent swap-in/out. Note
 	 * that thanks to write = false in this call and us not setting any gpu
 	 * write domains when putting a context object onto the active list
 	 * (when switching away from it), this won't block.
-	 * XXX: We need a real interface to do this instead of trickery. */
+	 *
+	 * XXX: We need a real interface to do this instead of trickery.
+	 */
 	ret = i915_gem_object_set_to_gtt_domain(to->obj, false);
 	if (ret) {
 		i915_gem_object_unpin(to->obj);
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index b7376533633d..8f3adc7d0dc8 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -88,6 +88,7 @@ i915_gem_evict_something(struct drm_device *dev, struct i915_address_space *vm,
 	} else
 		drm_mm_init_scan(&vm->mm, min_size, alignment, cache_level);
 
+search_again:
 	/* First see if there is a large enough contiguous idle region... */
 	list_for_each_entry(vma, &vm->inactive_list, mm_list) {
 		if (mark_free(vma, &unwind_list))
@@ -115,10 +116,17 @@ none:
 		list_del_init(&vma->exec_list);
 	}
 
-	/* We expect the caller to unpin, evict all and try again, or give up.
-	 * So calling i915_gem_evict_vm() is unnecessary.
+	/* Can we unpin some objects such as idle hw contents,
+	 * or pending flips?
 	 */
-	return -ENOSPC;
+	ret = nonblocking ? -ENOSPC : i915_gpu_idle(dev);
+	if (ret)
+		return ret;
+
+	/* Only idle the GPU and repeat the search once */
+	i915_gem_retire_requests(dev);
+	nonblocking = true;
+	goto search_again;
 
 found:
 	/* drm_mm doesn't allow any other other operations while
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 38cb8d44a013..c79dd2b1f70e 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -337,8 +337,8 @@ static void gen8_ppgtt_cleanup(struct i915_address_space *vm)
 		kfree(ppgtt->gen8_pt_dma_addr[i]);
 	}
 
-	__free_pages(ppgtt->gen8_pt_pages, ppgtt->num_pt_pages << PAGE_SHIFT);
-	__free_pages(ppgtt->pd_pages, ppgtt->num_pd_pages << PAGE_SHIFT);
+	__free_pages(ppgtt->gen8_pt_pages, get_order(ppgtt->num_pt_pages << PAGE_SHIFT));
+	__free_pages(ppgtt->pd_pages, get_order(ppgtt->num_pd_pages << PAGE_SHIFT));
 }
 
 /**
@@ -1241,6 +1241,11 @@ static inline unsigned int gen8_get_total_gtt_size(u16 bdw_gmch_ctl)
 	bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK;
 	if (bdw_gmch_ctl)
 		bdw_gmch_ctl = 1 << bdw_gmch_ctl;
+	if (bdw_gmch_ctl > 4) {
+		WARN_ON(!i915_preliminary_hw_support);
+		return 4<<20;
+	}
+
 	return bdw_gmch_ctl << 20;
 }
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 080f6fd4e839..8b8bde7dce53 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9135,7 +9135,7 @@ intel_pipe_config_compare(struct drm_device *dev,
 	if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5)
 		PIPE_CONF_CHECK_I(pipe_bpp);
 
-	if (!IS_HASWELL(dev)) {
+	if (!HAS_DDI(dev)) {
 		PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode.crtc_clock);
 		PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
 	}
@@ -11036,8 +11036,6 @@ void intel_modeset_setup_hw_state(struct drm_device *dev,
 	}
 
 	intel_modeset_check_state(dev);
-
-	drm_mode_config_reset(dev);
 }
 
 void intel_modeset_gem_init(struct drm_device *dev)
@@ -11046,7 +11044,10 @@ void intel_modeset_gem_init(struct drm_device *dev)
 
 	intel_setup_overlay(dev);
 
+	drm_modeset_lock_all(dev);
+	drm_mode_config_reset(dev);
 	intel_modeset_setup_hw_state(dev, false);
+	drm_modeset_unlock_all(dev);
 }
 
 void intel_modeset_cleanup(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index a18e88b3e425..79f91f26e288 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -821,6 +821,7 @@ void intel_update_sprite_watermarks(struct drm_plane *plane,
 				    uint32_t sprite_width, int pixel_size,
 				    bool enabled, bool scaled);
 void intel_init_pm(struct drm_device *dev);
+void intel_pm_setup(struct drm_device *dev);
 bool intel_fbc_enabled(struct drm_device *dev);
 void intel_update_fbc(struct drm_device *dev);
 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index f161ac02c4f6..e6f782d1c669 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -451,7 +451,9 @@ static u32 intel_panel_get_backlight(struct drm_device *dev,
 
 	spin_lock_irqsave(&dev_priv->backlight.lock, flags);
 
-	if (HAS_PCH_SPLIT(dev)) {
+	if (IS_BROADWELL(dev)) {
+		val = I915_READ(BLC_PWM_PCH_CTL2) & BACKLIGHT_DUTY_CYCLE_MASK;
+	} else if (HAS_PCH_SPLIT(dev)) {
 		val = I915_READ(BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
 	} else {
 		if (IS_VALLEYVIEW(dev))
@@ -479,6 +481,13 @@ static u32 intel_panel_get_backlight(struct drm_device *dev,
 	return val;
 }
 
+static void intel_bdw_panel_set_backlight(struct drm_device *dev, u32 level)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	u32 val = I915_READ(BLC_PWM_PCH_CTL2) & ~BACKLIGHT_DUTY_CYCLE_MASK;
+	I915_WRITE(BLC_PWM_PCH_CTL2, val | level);
+}
+
 static void intel_pch_panel_set_backlight(struct drm_device *dev, u32 level)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -496,7 +505,9 @@ static void intel_panel_actually_set_backlight(struct drm_device *dev,
 	DRM_DEBUG_DRIVER("set backlight PWM = %d\n", level);
 	level = intel_panel_compute_brightness(dev, pipe, level);
 
-	if (HAS_PCH_SPLIT(dev))
+	if (IS_BROADWELL(dev))
+		return intel_bdw_panel_set_backlight(dev, level);
+	else if (HAS_PCH_SPLIT(dev))
 		return intel_pch_panel_set_backlight(dev, level);
 
 	if (is_backlight_combination_mode(dev)) {
@@ -666,7 +677,16 @@ void intel_panel_enable_backlight(struct intel_connector *connector)
 		POSTING_READ(reg);
 		I915_WRITE(reg, tmp | BLM_PWM_ENABLE);
 
-		if (HAS_PCH_SPLIT(dev) &&
+		if (IS_BROADWELL(dev)) {
+			/*
+			 * Broadwell requires PCH override to drive the PCH
+			 * backlight pin. The above will configure the CPU
+			 * backlight pin, which we don't plan to use.
+			 */
+			tmp = I915_READ(BLC_PWM_PCH_CTL1);
+			tmp |= BLM_PCH_OVERRIDE_ENABLE | BLM_PCH_PWM_ENABLE;
+			I915_WRITE(BLC_PWM_PCH_CTL1, tmp);
+		} else if (HAS_PCH_SPLIT(dev) &&
 		    !(dev_priv->quirks & QUIRK_NO_PCH_PWM_ENABLE)) {
 			tmp = I915_READ(BLC_PWM_PCH_CTL1);
 			tmp |= BLM_PCH_PWM_ENABLE;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6e0d5e075b15..3657ab43c8fd 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5685,6 +5685,7 @@ static void __intel_set_power_well(struct drm_device *dev, bool enable)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	bool is_enabled, enable_requested;
+	unsigned long irqflags;
 	uint32_t tmp;
 
 	tmp = I915_READ(HSW_PWR_WELL_DRIVER);
@@ -5702,9 +5703,24 @@ static void __intel_set_power_well(struct drm_device *dev, bool enable)
 				      HSW_PWR_WELL_STATE_ENABLED), 20))
 				DRM_ERROR("Timeout enabling power well\n");
 		}
+
+		if (IS_BROADWELL(dev)) {
+			spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+			I915_WRITE(GEN8_DE_PIPE_IMR(PIPE_B),
+				   dev_priv->de_irq_mask[PIPE_B]);
+			I915_WRITE(GEN8_DE_PIPE_IER(PIPE_B),
+				   ~dev_priv->de_irq_mask[PIPE_B] |
+				   GEN8_PIPE_VBLANK);
+			I915_WRITE(GEN8_DE_PIPE_IMR(PIPE_C),
+				   dev_priv->de_irq_mask[PIPE_C]);
+			I915_WRITE(GEN8_DE_PIPE_IER(PIPE_C),
+				   ~dev_priv->de_irq_mask[PIPE_C] |
+				   GEN8_PIPE_VBLANK);
+			POSTING_READ(GEN8_DE_PIPE_IER(PIPE_C));
+			spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+		}
 	} else {
 		if (enable_requested) {
-			unsigned long irqflags;
 			enum pipe p;
 
 			I915_WRITE(HSW_PWR_WELL_DRIVER, 0);
@@ -6130,10 +6146,19 @@ int vlv_freq_opcode(int ddr_freq, int val)
 	return val;
 }
 
-void intel_pm_init(struct drm_device *dev)
+void intel_pm_setup(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
+	mutex_init(&dev_priv->rps.hw_lock);
+
+	mutex_init(&dev_priv->pc8.lock);
+	dev_priv->pc8.requirements_met = false;
+	dev_priv->pc8.gpu_idle = false;
+	dev_priv->pc8.irqs_disabled = false;
+	dev_priv->pc8.enabled = false;
+	dev_priv->pc8.disable_count = 2; /* requirements_met + gpu_idle */
+	INIT_DELAYED_WORK(&dev_priv->pc8.enable_work, hsw_enable_pc8_work);
 	INIT_DELAYED_WORK(&dev_priv->rps.delayed_resume_work,
 			  intel_gen6_powersave_work);
 }
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index b620337e6d67..c2f09d456300 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -965,6 +965,7 @@ void intel_ring_setup_status_page(struct intel_ring_buffer *ring)
 	} else if (IS_GEN6(ring->dev)) {
 		mmio = RING_HWS_PGA_GEN6(ring->mmio_base);
 	} else {
+		/* XXX: gen8 returns to sanity */
 		mmio = RING_HWS_PGA(ring->mmio_base);
 	}
 
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 0b02078a0b84..25cbe073c388 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -784,6 +784,7 @@ static int gen6_do_reset(struct drm_device *dev)
 int intel_gpu_reset(struct drm_device *dev)
 {
 	switch (INTEL_INFO(dev)->gen) {
+	case 8:
 	case 7:
 	case 6: return gen6_do_reset(dev);
 	case 5: return ironlake_do_reset(dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 7a3759f1c41a..98a22e6e27a1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -858,6 +858,12 @@ static int nouveau_pmops_runtime_suspend(struct device *dev)
 	if (nouveau_runtime_pm == 0)
 		return -EINVAL;
 
+	/* are we optimus enabled? */
+	if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
+		DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
+		return -EINVAL;
+	}
+
 	nv_debug_level(SILENT);
 	drm_kms_helper_poll_disable(drm_dev);
 	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 80a20120e625..b1970596a782 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1196,7 +1196,9 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 	} else if ((rdev->family == CHIP_TAHITI) ||
 		   (rdev->family == CHIP_PITCAIRN))
 		fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P8_32x32_8x16);
-	else if (rdev->family == CHIP_VERDE)
+	else if ((rdev->family == CHIP_VERDE) ||
+		 (rdev->family == CHIP_OLAND) ||
+		 (rdev->family == CHIP_HAINAN)) /* for completeness.  HAINAN has no display hw */
 		fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P4_8x16);
 
 	switch (radeon_crtc->crtc_id) {
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c
index 0300727a4f70..d08b83c6267b 100644
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -458,7 +458,7 @@ int cik_copy_dma(struct radeon_device *rdev,
 		radeon_ring_write(ring, 0); /* src/dst endian swap */
 		radeon_ring_write(ring, src_offset & 0xffffffff);
 		radeon_ring_write(ring, upper_32_bits(src_offset) & 0xffffffff);
-		radeon_ring_write(ring, dst_offset & 0xfffffffc);
+		radeon_ring_write(ring, dst_offset & 0xffffffff);
 		radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xffffffff);
 		src_offset += cur_size_in_bytes;
 		dst_offset += cur_size_in_bytes;
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index e354ce94cdd1..c0425bb6223a 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2021,7 +2021,7 @@ static struct radeon_asic ci_asic = {
 		.hdmi_setmode = &evergreen_hdmi_setmode,
 	},
 	.copy = {
-		.blit = NULL,
+		.blit = &cik_copy_cpdma,
 		.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
 		.dma = &cik_copy_dma,
 		.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
@@ -2122,7 +2122,7 @@ static struct radeon_asic kv_asic = {
 		.hdmi_setmode = &evergreen_hdmi_setmode,
 	},
 	.copy = {
-		.blit = NULL,
+		.blit = &cik_copy_cpdma,
 		.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
 		.dma = &cik_copy_dma,
 		.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 9f5ff28864f6..1958b36ad0e5 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -508,15 +508,6 @@ static const struct file_operations radeon_driver_kms_fops = {
 #endif
 };
 
-
-static void
-radeon_pci_shutdown(struct pci_dev *pdev)
-{
-	struct drm_device *dev = pci_get_drvdata(pdev);
-
-	radeon_driver_unload_kms(dev);
-}
-
 static struct drm_driver kms_driver = {
 	.driver_features =
 	    DRIVER_USE_AGP |
@@ -586,7 +577,6 @@ static struct pci_driver radeon_kms_pci_driver = {
 	.probe = radeon_pci_probe,
 	.remove = radeon_pci_remove,
 	.driver.pm = &radeon_pm_ops,
-	.shutdown = radeon_pci_shutdown,
 };
 
 static int __init radeon_init(void)
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 1c560629575a..e7dab069cccf 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -162,6 +162,16 @@ static void rs690_mc_init(struct radeon_device *rdev)
 	base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
 	base = G_000100_MC_FB_START(base) << 16;
 	rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
+	/* Some boards seem to be configured for 128MB of sideport memory,
+	 * but really only have 64MB.  Just skip the sideport and use
+	 * UMA memory.
+	 */
+	if (rdev->mc.igp_sideport_enabled &&
+	    (rdev->mc.real_vram_size == (384 * 1024 * 1024))) {
+		base += 128 * 1024 * 1024;
+		rdev->mc.real_vram_size -= 128 * 1024 * 1024;
+		rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
+	}
 
 	/* Use K8 direct mapping for fast fb access. */ 
 	rdev->fastfb_working = false;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index b249ab9b1eb2..6440eeac22d2 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -169,9 +169,9 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	}
 
 	page_offset = ((address - vma->vm_start) >> PAGE_SHIFT) +
-	    drm_vma_node_start(&bo->vma_node) - vma->vm_pgoff;
-	page_last = vma_pages(vma) +
-	    drm_vma_node_start(&bo->vma_node) - vma->vm_pgoff;
+		vma->vm_pgoff - drm_vma_node_start(&bo->vma_node);
+	page_last = vma_pages(vma) + vma->vm_pgoff -
+		drm_vma_node_start(&bo->vma_node);
 
 	if (unlikely(page_offset >= bo->num_pages)) {
 		retval = VM_FAULT_SIGBUS;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index a51f48e3e917..45d5b5ab6ca9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -68,6 +68,9 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 				  SVGA_FIFO_3D_HWVERSION));
 		break;
 	}
+	case DRM_VMW_PARAM_MAX_SURF_MEMORY:
+		param->value = dev_priv->memory_size;
+		break;
 	default:
 		DRM_ERROR("Illegal vmwgfx get param request: %d\n",
 			  param->param);
diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c
index acb7f90359a3..749a6cadab8b 100644
--- a/drivers/iio/adc/ad7887.c
+++ b/drivers/iio/adc/ad7887.c
@@ -200,7 +200,13 @@ static const struct ad7887_chip_info ad7887_chip_info_tbl[] = {
 			.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
 			.address = 1,
 			.scan_index = 1,
-			.scan_type = IIO_ST('u', 12, 16, 0),
+			.scan_type = {
+				.sign = 'u',
+				.realbits = 12,
+				.storagebits = 16,
+				.shift = 0,
+				.endianness = IIO_BE,
+			},
 		},
 		.channel[1] = {
 			.type = IIO_VOLTAGE,
@@ -210,7 +216,13 @@ static const struct ad7887_chip_info ad7887_chip_info_tbl[] = {
 			.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
 			.address = 0,
 			.scan_index = 0,
-			.scan_type = IIO_ST('u', 12, 16, 0),
+			.scan_type = {
+				.sign = 'u',
+				.realbits = 12,
+				.storagebits = 16,
+				.shift = 0,
+				.endianness = IIO_BE,
+			},
 		},
 		.channel[2] = IIO_CHAN_SOFT_TIMESTAMP(2),
 		.int_vref_mv = 2500,
diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c
index 3fb7757a1028..368660dfe135 100644
--- a/drivers/iio/imu/adis16400_core.c
+++ b/drivers/iio/imu/adis16400_core.c
@@ -651,7 +651,12 @@ static const struct iio_chan_spec adis16448_channels[] = {
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
 		.address = ADIS16448_BARO_OUT,
 		.scan_index = ADIS16400_SCAN_BARO,
-		.scan_type = IIO_ST('s', 16, 16, 0),
+		.scan_type = {
+			.sign = 's',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_BE,
+		},
 	},
 	ADIS16400_TEMP_CHAN(ADIS16448_TEMP_OUT, 12),
 	IIO_CHAN_SOFT_TIMESTAMP(11)
diff --git a/drivers/iio/light/cm36651.c b/drivers/iio/light/cm36651.c
index 21df57130018..0922e39b0ea9 100644
--- a/drivers/iio/light/cm36651.c
+++ b/drivers/iio/light/cm36651.c
@@ -387,7 +387,7 @@ static int cm36651_read_int_time(struct cm36651_data *cm36651,
 		return -EINVAL;
 	}
 
-	return IIO_VAL_INT_PLUS_MICRO;
+	return IIO_VAL_INT;
 }
 
 static int cm36651_write_int_time(struct cm36651_data *cm36651,
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 6be57c38638d..9804fca6bf06 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -207,7 +207,9 @@ isert_free_rx_descriptors(struct isert_conn *isert_conn)
 	isert_conn->conn_rx_descs = NULL;
 }
 
+static void isert_cq_tx_work(struct work_struct *);
 static void isert_cq_tx_callback(struct ib_cq *, void *);
+static void isert_cq_rx_work(struct work_struct *);
 static void isert_cq_rx_callback(struct ib_cq *, void *);
 
 static int
@@ -259,26 +261,36 @@ isert_create_device_ib_res(struct isert_device *device)
 		cq_desc[i].device = device;
 		cq_desc[i].cq_index = i;
 
+		INIT_WORK(&cq_desc[i].cq_rx_work, isert_cq_rx_work);
 		device->dev_rx_cq[i] = ib_create_cq(device->ib_device,
 						isert_cq_rx_callback,
 						isert_cq_event_callback,
 						(void *)&cq_desc[i],
 						ISER_MAX_RX_CQ_LEN, i);
-		if (IS_ERR(device->dev_rx_cq[i]))
+		if (IS_ERR(device->dev_rx_cq[i])) {
+			ret = PTR_ERR(device->dev_rx_cq[i]);
+			device->dev_rx_cq[i] = NULL;
 			goto out_cq;
+		}
 
+		INIT_WORK(&cq_desc[i].cq_tx_work, isert_cq_tx_work);
 		device->dev_tx_cq[i] = ib_create_cq(device->ib_device,
 						isert_cq_tx_callback,
 						isert_cq_event_callback,
 						(void *)&cq_desc[i],
 						ISER_MAX_TX_CQ_LEN, i);
-		if (IS_ERR(device->dev_tx_cq[i]))
+		if (IS_ERR(device->dev_tx_cq[i])) {
+			ret = PTR_ERR(device->dev_tx_cq[i]);
+			device->dev_tx_cq[i] = NULL;
 			goto out_cq;
+		}
 
-		if (ib_req_notify_cq(device->dev_rx_cq[i], IB_CQ_NEXT_COMP))
+		ret = ib_req_notify_cq(device->dev_rx_cq[i], IB_CQ_NEXT_COMP);
+		if (ret)
 			goto out_cq;
 
-		if (ib_req_notify_cq(device->dev_tx_cq[i], IB_CQ_NEXT_COMP))
+		ret = ib_req_notify_cq(device->dev_tx_cq[i], IB_CQ_NEXT_COMP);
+		if (ret)
 			goto out_cq;
 	}
 
@@ -1724,7 +1736,6 @@ isert_cq_tx_callback(struct ib_cq *cq, void *context)
 {
 	struct isert_cq_desc *cq_desc = (struct isert_cq_desc *)context;
 
-	INIT_WORK(&cq_desc->cq_tx_work, isert_cq_tx_work);
 	queue_work(isert_comp_wq, &cq_desc->cq_tx_work);
 }
 
@@ -1768,7 +1779,6 @@ isert_cq_rx_callback(struct ib_cq *cq, void *context)
 {
 	struct isert_cq_desc *cq_desc = (struct isert_cq_desc *)context;
 
-	INIT_WORK(&cq_desc->cq_rx_work, isert_cq_rx_work);
 	queue_work(isert_rx_wq, &cq_desc->cq_rx_work);
 }
 
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 82cec63a9011..3ee78f02e5d7 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -149,8 +149,9 @@ static void intc_irqpin_read_modify_write(struct intc_irqpin_priv *p,
 static void intc_irqpin_mask_unmask_prio(struct intc_irqpin_priv *p,
 					 int irq, int do_mask)
 {
-	int bitfield_width = 4; /* PRIO assumed to have fixed bitfield width */
-	int shift = (7 - irq) * bitfield_width; /* PRIO assumed to be 32-bit */
+	/* The PRIO register is assumed to be 32-bit with fixed 4-bit fields. */
+	int bitfield_width = 4;
+	int shift = 32 - (irq + 1) * bitfield_width;
 
 	intc_irqpin_read_modify_write(p, INTC_IRQPIN_REG_PRIO,
 				      shift, bitfield_width,
@@ -159,8 +160,9 @@ static void intc_irqpin_mask_unmask_prio(struct intc_irqpin_priv *p,
 
 static int intc_irqpin_set_sense(struct intc_irqpin_priv *p, int irq, int value)
 {
+	/* The SENSE register is assumed to be 32-bit. */
 	int bitfield_width = p->config.sense_bitfield_width;
-	int shift = (7 - irq) * bitfield_width; /* SENSE assumed to be 32-bit */
+	int shift = 32 - (irq + 1) * bitfield_width;
 
 	dev_dbg(&p->pdev->dev, "sense irq = %d, mode = %d\n", irq, value);
 
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 5f9a7ad9b964..8aeec0b4601a 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -625,6 +625,7 @@ static int ems_usb_start(struct ems_usb *dev)
 			usb_unanchor_urb(urb);
 			usb_free_coherent(dev->udev, RX_BUFFER_SIZE, buf,
 					  urb->transfer_dma);
+			usb_free_urb(urb);
 			break;
 		}
 
@@ -798,8 +799,8 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne
 	 * allowed (MAX_TX_URBS).
 	 */
 	if (!context) {
-		usb_unanchor_urb(urb);
 		usb_free_coherent(dev->udev, size, buf, urb->transfer_dma);
+		usb_free_urb(urb);
 
 		netdev_warn(netdev, "couldn't find free context\n");
 
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 8ee9d1556e6e..263dd921edc4 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
@@ -927,6 +927,9 @@ static int pcan_usb_pro_init(struct peak_usb_device *dev)
 	/* set LED in default state (end of init phase) */
 	pcan_usb_pro_set_led(dev, 0, 1);
 
+	kfree(bi);
+	kfree(fi);
+
 	return 0;
 
  err_out:
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index b1cb0ffb15c7..6055d397a29e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -447,8 +447,9 @@ irqreturn_t qlcnic_83xx_intr(int irq, void *data)
 
 	qlcnic_83xx_poll_process_aen(adapter);
 
-	if (ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
-		ahw->diag_cnt++;
+	if (ahw->diag_test) {
+		if (ahw->diag_test == QLCNIC_INTERRUPT_TEST)
+			ahw->diag_cnt++;
 		qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 		return IRQ_HANDLED;
 	}
@@ -1345,11 +1346,6 @@ static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
 	}
 
 	if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
-		/* disable and free mailbox interrupt */
-		if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
-			qlcnic_83xx_enable_mbx_poll(adapter);
-			qlcnic_83xx_free_mbx_intr(adapter);
-		}
 		adapter->ahw->loopback_state = 0;
 		adapter->ahw->hw_ops->setup_link_event(adapter, 1);
 	}
@@ -1363,33 +1359,20 @@ static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_host_sds_ring *sds_ring;
-	int ring, err;
+	int ring;
 
 	clear_bit(__QLCNIC_DEV_UP, &adapter->state);
 	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
 		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 			sds_ring = &adapter->recv_ctx->sds_rings[ring];
-			qlcnic_83xx_disable_intr(adapter, sds_ring);
-			if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
-				qlcnic_83xx_enable_mbx_poll(adapter);
+			if (adapter->flags & QLCNIC_MSIX_ENABLED)
+				qlcnic_83xx_disable_intr(adapter, sds_ring);
 		}
 	}
 
 	qlcnic_fw_destroy_ctx(adapter);
 	qlcnic_detach(adapter);
 
-	if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
-		if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
-			err = qlcnic_83xx_setup_mbx_intr(adapter);
-			qlcnic_83xx_disable_mbx_poll(adapter);
-			if (err) {
-				dev_err(&adapter->pdev->dev,
-					"%s: failed to setup mbx interrupt\n",
-					__func__);
-				goto out;
-			}
-		}
-	}
 	adapter->ahw->diag_test = 0;
 	adapter->drv_sds_rings = drv_sds_rings;
 
@@ -1399,9 +1382,6 @@ static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
 	if (netif_running(netdev))
 		__qlcnic_up(adapter, netdev);
 
-	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST &&
-	    !(adapter->flags & QLCNIC_MSIX_ENABLED))
-		qlcnic_83xx_disable_mbx_poll(adapter);
 out:
 	netif_device_attach(netdev);
 }
@@ -3754,6 +3734,19 @@ static void qlcnic_83xx_decode_mbx_rsp(struct qlcnic_adapter *adapter,
 	return;
 }
 
+static inline void qlcnic_dump_mailbox_registers(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	u32 offset;
+
+	offset = QLCRDX(ahw, QLCNIC_DEF_INT_MASK);
+	dev_info(&adapter->pdev->dev, "Mbx interrupt mask=0x%x, Mbx interrupt enable=0x%x, Host mbx control=0x%x, Fw mbx control=0x%x",
+		 readl(ahw->pci_base0 + offset),
+		 QLCRDX(ahw, QLCNIC_MBX_INTR_ENBL),
+		 QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL),
+		 QLCRDX(ahw, QLCNIC_FW_MBX_CTRL));
+}
+
 static void qlcnic_83xx_mailbox_worker(struct work_struct *work)
 {
 	struct qlcnic_mailbox *mbx = container_of(work, struct qlcnic_mailbox,
@@ -3798,6 +3791,8 @@ static void qlcnic_83xx_mailbox_worker(struct work_struct *work)
 				__func__, cmd->cmd_op, cmd->type, ahw->pci_func,
 				ahw->op_mode);
 			clear_bit(QLC_83XX_MBX_READY, &mbx->status);
+			qlcnic_dump_mailbox_registers(adapter);
+			qlcnic_83xx_get_mbx_data(adapter, cmd);
 			qlcnic_dump_mbx(adapter, cmd);
 			qlcnic_83xx_idc_request_reset(adapter,
 						      QLCNIC_FORCE_FW_DUMP_KEY);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 4cae6caa6bfa..a6a33508e401 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -662,4 +662,5 @@ pci_ers_result_t qlcnic_83xx_io_error_detected(struct pci_dev *,
 					       pci_channel_state_t);
 pci_ers_result_t qlcnic_83xx_io_slot_reset(struct pci_dev *);
 void qlcnic_83xx_io_resume(struct pci_dev *);
+void qlcnic_83xx_stop_hw(struct qlcnic_adapter *);
 #endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index 89208e5b25d6..918e18ddf038 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -740,6 +740,7 @@ static int qlcnic_83xx_idc_unknown_state(struct qlcnic_adapter *adapter)
 	adapter->ahw->idc.err_code = -EIO;
 	dev_err(&adapter->pdev->dev,
 		"%s: Device in unknown state\n", __func__);
+	clear_bit(__QLCNIC_RESETTING, &adapter->state);
 	return 0;
 }
 
@@ -818,7 +819,6 @@ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct qlcnic_mailbox *mbx = ahw->mailbox;
 	int ret = 0;
-	u32 owner;
 	u32 val;
 
 	/* Perform NIC configuration based ready state entry actions */
@@ -848,9 +848,9 @@ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
 			set_bit(__QLCNIC_RESETTING, &adapter->state);
 			qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
 		}  else {
-			owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
-			if (ahw->pci_func == owner)
-				qlcnic_dump_fw(adapter);
+			netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
+				    __func__);
+			qlcnic_83xx_idc_enter_failed_state(adapter, 1);
 		}
 		return -EIO;
 	}
@@ -948,13 +948,26 @@ static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter)
 	return 0;
 }
 
-static int qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
+static void qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
 {
-	dev_err(&adapter->pdev->dev, "%s: please restart!!\n", __func__);
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	u32 val, owner;
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+	if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
+		owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
+		if (ahw->pci_func == owner) {
+			qlcnic_83xx_stop_hw(adapter);
+			qlcnic_dump_fw(adapter);
+		}
+	}
+
+	netdev_warn(adapter->netdev, "%s: Reboot will be required to recover the adapter!!\n",
+		    __func__);
 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
-	adapter->ahw->idc.err_code = -EIO;
+	ahw->idc.err_code = -EIO;
 
-	return 0;
+	return;
 }
 
 static int qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter *adapter)
@@ -1063,12 +1076,6 @@ void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work)
 	adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state;
 	qlcnic_83xx_periodic_tasks(adapter);
 
-	/* Do not reschedule if firmaware is in hanged state and auto
-	 * recovery is disabled
-	 */
-	if ((adapter->flags & QLCNIC_FW_HANG) && !qlcnic_auto_fw_reset)
-		return;
-
 	/* Re-schedule the function */
 	if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status))
 		qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
@@ -1219,10 +1226,10 @@ void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key)
 	}
 
 	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
-	if ((val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) ||
-	    !qlcnic_auto_fw_reset) {
-		dev_err(&adapter->pdev->dev,
-			"%s:failed, device in non reset mode\n", __func__);
+	if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
+		netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
+			    __func__);
+		qlcnic_83xx_idc_enter_failed_state(adapter, 0);
 		qlcnic_83xx_unlock_driver(adapter);
 		return;
 	}
@@ -1254,24 +1261,24 @@ static int qlcnic_83xx_copy_bootloader(struct qlcnic_adapter *adapter)
 	if (size & 0xF)
 		size = (size + 16) & ~0xF;
 
-	p_cache = kzalloc(size, GFP_KERNEL);
+	p_cache = vzalloc(size);
 	if (p_cache == NULL)
 		return -ENOMEM;
 
 	ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache,
 						size / sizeof(u32));
 	if (ret) {
-		kfree(p_cache);
+		vfree(p_cache);
 		return ret;
 	}
 	/* 16 byte write to MS memory */
 	ret = qlcnic_83xx_ms_mem_write128(adapter, dest, (u32 *)p_cache,
 					  size / 16);
 	if (ret) {
-		kfree(p_cache);
+		vfree(p_cache);
 		return ret;
 	}
-	kfree(p_cache);
+	vfree(p_cache);
 
 	return ret;
 }
@@ -1939,7 +1946,7 @@ static void qlcnic_83xx_exec_template_cmd(struct qlcnic_adapter *p_dev,
 	p_dev->ahw->reset.seq_index = index;
 }
 
-static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev)
+void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev)
 {
 	p_dev->ahw->reset.seq_index = 0;
 
@@ -1994,6 +2001,14 @@ static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter)
 	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
 	if (!(val & QLC_83XX_IDC_GRACEFULL_RESET))
 		qlcnic_dump_fw(adapter);
+
+	if (val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) {
+		netdev_info(adapter->netdev, "%s: Auto firmware recovery is disabled\n",
+			    __func__);
+		qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+		return err;
+	}
+
 	qlcnic_83xx_init_hw(adapter);
 
 	if (qlcnic_83xx_copy_bootloader(adapter))
@@ -2073,8 +2088,8 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
 		ahw->nic_mode = QLCNIC_DEFAULT_MODE;
 		adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
-		adapter->max_sds_rings = ahw->max_rx_ques;
-		adapter->max_tx_rings = ahw->max_tx_ques;
+		adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
+		adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS;
 	} else {
 		return -EIO;
 	}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index b36c02fafcfd..e3be2760665c 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -667,30 +667,25 @@ qlcnic_set_ringparam(struct net_device *dev,
 static int qlcnic_validate_ring_count(struct qlcnic_adapter *adapter,
 				      u8 rx_ring, u8 tx_ring)
 {
+	if (rx_ring == 0 || tx_ring == 0)
+		return -EINVAL;
+
 	if (rx_ring != 0) {
 		if (rx_ring > adapter->max_sds_rings) {
-			netdev_err(adapter->netdev, "Invalid ring count, SDS ring count %d should not be greater than max %d driver sds rings.\n",
+			netdev_err(adapter->netdev,
+				   "Invalid ring count, SDS ring count %d should not be greater than max %d driver sds rings.\n",
 				   rx_ring, adapter->max_sds_rings);
 			return -EINVAL;
 		}
 	}
 
 	 if (tx_ring != 0) {
-		if (qlcnic_82xx_check(adapter) &&
-		    (tx_ring > adapter->max_tx_rings)) {
+		if (tx_ring > adapter->max_tx_rings) {
 			netdev_err(adapter->netdev,
 				   "Invalid ring count, Tx ring count %d should not be greater than max %d driver Tx rings.\n",
 				   tx_ring, adapter->max_tx_rings);
 			return -EINVAL;
 		}
-
-		if (qlcnic_83xx_check(adapter) &&
-		    (tx_ring > QLCNIC_SINGLE_RING)) {
-			netdev_err(adapter->netdev,
-				   "Invalid ring count, Tx ring count %d should not be greater than %d driver Tx rings.\n",
-				   tx_ring, QLCNIC_SINGLE_RING);
-			 return -EINVAL;
-		}
 	}
 
 	return 0;
@@ -948,6 +943,7 @@ static int qlcnic_irq_test(struct net_device *netdev)
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct qlcnic_cmd_args cmd;
 	int ret, drv_sds_rings = adapter->drv_sds_rings;
+	int drv_tx_rings = adapter->drv_tx_rings;
 
 	if (qlcnic_83xx_check(adapter))
 		return qlcnic_83xx_interrupt_test(netdev);
@@ -980,6 +976,7 @@ free_diag_res:
 
 clear_diag_irq:
 	adapter->drv_sds_rings = drv_sds_rings;
+	adapter->drv_tx_rings = drv_tx_rings;
 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
 
 	return ret;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 0149c9495347..eda6c691d897 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -687,17 +687,11 @@ void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
 	if (adapter->ahw->linkup && !linkup) {
 		netdev_info(netdev, "NIC Link is down\n");
 		adapter->ahw->linkup = 0;
-		if (netif_running(netdev)) {
-			netif_carrier_off(netdev);
-			netif_tx_stop_all_queues(netdev);
-		}
+		netif_carrier_off(netdev);
 	} else if (!adapter->ahw->linkup && linkup) {
 		netdev_info(netdev, "NIC Link is up\n");
 		adapter->ahw->linkup = 1;
-		if (netif_running(netdev)) {
-			netif_carrier_on(netdev);
-			netif_wake_queue(netdev);
-		}
+		netif_carrier_on(netdev);
 	}
 }
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 05c1eef8df13..2c8cac0c6a55 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -1178,6 +1178,7 @@ qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 	} else {
 		adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
 		adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
+		adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
 		adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 	}
 
@@ -1940,7 +1941,6 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
 	qlcnic_detach(adapter);
 
 	adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
-	adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 	adapter->ahw->diag_test = test;
 	adapter->ahw->linkup = 0;
 
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 524f713f6017..f8135725bcf6 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -327,7 +327,6 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu)
 		return -EINVAL;
 
 	nvdev->start_remove = true;
-	cancel_delayed_work_sync(&ndevctx->dwork);
 	cancel_work_sync(&ndevctx->work);
 	netif_tx_disable(ndev);
 	rndis_filter_device_remove(hdev);
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index e884ee1fe7ed..27bbe58dcbe7 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1197,6 +1197,9 @@ static int checksum_setup_ip(struct xenvif *vif, struct sk_buff *skb,
 
 	err = -EPROTO;
 
+	if (fragment)
+		goto out;
+
 	switch (ip_hdr(skb)->protocol) {
 	case IPPROTO_TCP:
 		err = maybe_pull_tail(skb,
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index a344f3d52361..330ef2d06567 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -24,8 +24,8 @@ config PHY_EXYNOS_MIPI_VIDEO
 config OMAP_USB2
 	tristate "OMAP USB2 PHY Driver"
 	depends on ARCH_OMAP2PLUS
+	depends on USB_PHY
 	select GENERIC_PHY
-	select USB_PHY
 	select OMAP_CONTROL_USB
 	help
 	  Enable this to support the transceiver that is part of SOC. This
@@ -36,8 +36,8 @@ config OMAP_USB2
 config TWL4030_USB
 	tristate "TWL4030 USB Transceiver Driver"
 	depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS
+	depends on USB_PHY
 	select GENERIC_PHY
-	select USB_PHY
 	help
 	  Enable this to support the USB OTG transceiver on TWL4030
 	  family chips (including the TWL5030 and TPS659x0 devices).
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 03cf8fb81554..58e0e9739028 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -437,23 +437,18 @@ struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
 	int id;
 	struct phy *phy;
 
-	if (!dev) {
-		dev_WARN(dev, "no device provided for PHY\n");
-		ret = -EINVAL;
-		goto err0;
-	}
+	if (WARN_ON(!dev))
+		return ERR_PTR(-EINVAL);
 
 	phy = kzalloc(sizeof(*phy), GFP_KERNEL);
-	if (!phy) {
-		ret = -ENOMEM;
-		goto err0;
-	}
+	if (!phy)
+		return ERR_PTR(-ENOMEM);
 
 	id = ida_simple_get(&phy_ida, 0, 0, GFP_KERNEL);
 	if (id < 0) {
 		dev_err(dev, "unable to get id\n");
 		ret = id;
-		goto err0;
+		goto free_phy;
 	}
 
 	device_initialize(&phy->dev);
@@ -468,11 +463,11 @@ struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
 
 	ret = dev_set_name(&phy->dev, "phy-%s.%d", dev_name(dev), id);
 	if (ret)
-		goto err1;
+		goto put_dev;
 
 	ret = device_add(&phy->dev);
 	if (ret)
-		goto err1;
+		goto put_dev;
 
 	if (pm_runtime_enabled(dev)) {
 		pm_runtime_enable(&phy->dev);
@@ -481,12 +476,11 @@ struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
 
 	return phy;
 
-err1:
-	ida_remove(&phy_ida, phy->id);
+put_dev:
 	put_device(&phy->dev);
+	ida_remove(&phy_ida, phy->id);
+free_phy:
 	kfree(phy);
-
-err0:
 	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(phy_create);
diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h
index 11bd0d970a52..e2142956a8e5 100644
--- a/drivers/pinctrl/sh-pfc/sh_pfc.h
+++ b/drivers/pinctrl/sh-pfc/sh_pfc.h
@@ -254,7 +254,7 @@ struct sh_pfc_soc_info {
 #define PINMUX_GPIO(_pin)						\
 	[GPIO_##_pin] = {						\
 		.pin = (u16)-1,						\
-		.name = __stringify(name),				\
+		.name = __stringify(GPIO_##_pin),			\
 		.enum_id = _pin##_DATA,					\
 	}
 
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index 333677d68d0e..9e61922d8230 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -438,7 +438,7 @@ common_reg:
 	platform_set_drvdata(pdev, s2mps11);
 
 	config.dev = &pdev->dev;
-	config.regmap = iodev->regmap;
+	config.regmap = iodev->regmap_pmic;
 	config.driver_data = s2mps11;
 	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) {
 		if (!reg_np) {
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 596480022b0a..38a1257e76e1 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -471,7 +471,7 @@ static void qlt_schedule_sess_for_deletion(struct qla_tgt_sess *sess,
 		schedule_delayed_work(&tgt->sess_del_work, 0);
 	else
 		schedule_delayed_work(&tgt->sess_del_work,
-		    jiffies - sess->expires);
+		    sess->expires - jiffies);
 }
 
 /* ha->hardware_lock supposed to be held on entry */
@@ -550,13 +550,14 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
 	struct scsi_qla_host *vha = tgt->vha;
 	struct qla_hw_data *ha = vha->hw;
 	struct qla_tgt_sess *sess;
-	unsigned long flags;
+	unsigned long flags, elapsed;
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 	while (!list_empty(&tgt->del_sess_list)) {
 		sess = list_entry(tgt->del_sess_list.next, typeof(*sess),
 		    del_list_entry);
-		if (time_after_eq(jiffies, sess->expires)) {
+		elapsed = jiffies;
+		if (time_after_eq(elapsed, sess->expires)) {
 			qlt_undelete_sess(sess);
 
 			ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004,
@@ -566,7 +567,7 @@ static void qlt_del_sess_work_fn(struct delayed_work *work)
 			ha->tgt.tgt_ops->put_sess(sess);
 		} else {
 			schedule_delayed_work(&tgt->sess_del_work,
-			    jiffies - sess->expires);
+			    sess->expires - elapsed);
 			break;
 		}
 	}
@@ -4290,6 +4291,7 @@ int qlt_lport_register(struct qla_tgt_func_tmpl *qla_tgt_ops, u64 wwpn,
 		if (rc != 0) {
 			ha->tgt.tgt_ops = NULL;
 			ha->tgt.target_lport_ptr = NULL;
+			scsi_host_put(host);
 		}
 		mutex_unlock(&qla_tgt_mutex);
 		return rc;
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index 8f02bf66e20b..4964d2a2fc7d 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -446,7 +446,7 @@ int comedi_load_firmware(struct comedi_device *dev,
 		release_firmware(fw);
 	}
 
-	return ret;
+	return ret < 0 ? ret : 0;
 }
 EXPORT_SYMBOL_GPL(comedi_load_firmware);
 
diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c
index 432e3f9c3301..c55f234b29e6 100644
--- a/drivers/staging/comedi/drivers/8255_pci.c
+++ b/drivers/staging/comedi/drivers/8255_pci.c
@@ -63,7 +63,8 @@ enum pci_8255_boardid {
 	BOARD_ADLINK_PCI7296,
 	BOARD_CB_PCIDIO24,
 	BOARD_CB_PCIDIO24H,
-	BOARD_CB_PCIDIO48H,
+	BOARD_CB_PCIDIO48H_OLD,
+	BOARD_CB_PCIDIO48H_NEW,
 	BOARD_CB_PCIDIO96H,
 	BOARD_NI_PCIDIO96,
 	BOARD_NI_PCIDIO96B,
@@ -106,11 +107,16 @@ static const struct pci_8255_boardinfo pci_8255_boards[] = {
 		.dio_badr	= 2,
 		.n_8255		= 1,
 	},
-	[BOARD_CB_PCIDIO48H] = {
+	[BOARD_CB_PCIDIO48H_OLD] = {
 		.name		= "cb_pci-dio48h",
 		.dio_badr	= 1,
 		.n_8255		= 2,
 	},
+	[BOARD_CB_PCIDIO48H_NEW] = {
+		.name		= "cb_pci-dio48h",
+		.dio_badr	= 2,
+		.n_8255		= 2,
+	},
 	[BOARD_CB_PCIDIO96H] = {
 		.name		= "cb_pci-dio96h",
 		.dio_badr	= 2,
@@ -263,7 +269,10 @@ static DEFINE_PCI_DEVICE_TABLE(pci_8255_pci_table) = {
 	{ PCI_VDEVICE(ADLINK, 0x7296), BOARD_ADLINK_PCI7296 },
 	{ PCI_VDEVICE(CB, 0x0028), BOARD_CB_PCIDIO24 },
 	{ PCI_VDEVICE(CB, 0x0014), BOARD_CB_PCIDIO24H },
-	{ PCI_VDEVICE(CB, 0x000b), BOARD_CB_PCIDIO48H },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_CB, 0x000b, 0x0000, 0x0000),
+	  .driver_data = BOARD_CB_PCIDIO48H_OLD },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_CB, 0x000b, PCI_VENDOR_ID_CB, 0x000b),
+	  .driver_data = BOARD_CB_PCIDIO48H_NEW },
 	{ PCI_VDEVICE(CB, 0x0017), BOARD_CB_PCIDIO96H },
 	{ PCI_VDEVICE(NI, 0x0160), BOARD_NI_PCIDIO96 },
 	{ PCI_VDEVICE(NI, 0x1630), BOARD_NI_PCIDIO96B },
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 99421f90d189..0485d7f39867 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -451,7 +451,12 @@ done:
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
 			BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
 		.scan_index = idx,					\
-		.scan_type = IIO_ST('s', 16, 16, IIO_BE),		\
+		.scan_type = {						\
+			.sign = 's',					\
+			.realbits = 16,					\
+			.storagebits = 16,				\
+			.endianness = IIO_BE,				\
+		},							\
 	}
 
 static const struct iio_chan_spec hmc5843_channels[] = {
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 6bd015ac9d68..96e4eee344ef 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -88,8 +88,9 @@ static int imx_drm_driver_unload(struct drm_device *drm)
 
 	imx_drm_device_put();
 
-	drm_mode_config_cleanup(imxdrm->drm);
+	drm_vblank_cleanup(imxdrm->drm);
 	drm_kms_helper_poll_fini(imxdrm->drm);
+	drm_mode_config_cleanup(imxdrm->drm);
 
 	return 0;
 }
@@ -199,8 +200,8 @@ static void imx_drm_driver_preclose(struct drm_device *drm,
 	if (!file->is_master)
 		return;
 
-	for (i = 0; i < 4; i++)
-		imx_drm_disable_vblank(drm , i);
+	for (i = 0; i < MAX_CRTC; i++)
+		imx_drm_disable_vblank(drm, i);
 }
 
 static const struct file_operations imx_drm_driver_fops = {
@@ -376,8 +377,6 @@ static int imx_drm_crtc_register(struct imx_drm_crtc *imx_drm_crtc)
 	struct imx_drm_device *imxdrm = __imx_drm_device();
 	int ret;
 
-	drm_crtc_init(imxdrm->drm, imx_drm_crtc->crtc,
-			imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs);
 	ret = drm_mode_crtc_set_gamma_size(imx_drm_crtc->crtc, 256);
 	if (ret)
 		return ret;
@@ -385,6 +384,9 @@ static int imx_drm_crtc_register(struct imx_drm_crtc *imx_drm_crtc)
 	drm_crtc_helper_add(imx_drm_crtc->crtc,
 			imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs);
 
+	drm_crtc_init(imxdrm->drm, imx_drm_crtc->crtc,
+			imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs);
+
 	drm_mode_group_reinit(imxdrm->drm);
 
 	return 0;
@@ -428,11 +430,11 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags)
 	ret = drm_mode_group_init_legacy_group(imxdrm->drm,
 			&imxdrm->drm->primary->mode_group);
 	if (ret)
-		goto err_init;
+		goto err_kms;
 
 	ret = drm_vblank_init(imxdrm->drm, MAX_CRTC);
 	if (ret)
-		goto err_init;
+		goto err_kms;
 
 	/*
 	 * with vblank_disable_allowed = true, vblank interrupt will be disabled
@@ -441,12 +443,19 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags)
 	 */
 	imxdrm->drm->vblank_disable_allowed = true;
 
-	if (!imx_drm_device_get())
+	if (!imx_drm_device_get()) {
 		ret = -EINVAL;
+		goto err_vblank;
+	}
 
-	ret = 0;
+	mutex_unlock(&imxdrm->mutex);
+	return 0;
 
-err_init:
+err_vblank:
+	drm_vblank_cleanup(drm);
+err_kms:
+	drm_kms_helper_poll_fini(drm);
+	drm_mode_config_cleanup(drm);
 	mutex_unlock(&imxdrm->mutex);
 
 	return ret;
@@ -492,6 +501,15 @@ int imx_drm_add_crtc(struct drm_crtc *crtc,
 
 	mutex_lock(&imxdrm->mutex);
 
+	/*
+	 * The vblank arrays are dimensioned by MAX_CRTC - we can't
+	 * pass IDs greater than this to those functions.
+	 */
+	if (imxdrm->pipes >= MAX_CRTC) {
+		ret = -EINVAL;
+		goto err_busy;
+	}
+
 	if (imxdrm->drm->open_count) {
 		ret = -EBUSY;
 		goto err_busy;
@@ -528,6 +546,7 @@ int imx_drm_add_crtc(struct drm_crtc *crtc,
 	return 0;
 
 err_register:
+	list_del(&imx_drm_crtc->list);
 	kfree(imx_drm_crtc);
 err_alloc:
 err_busy:
diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index 680f4c8fa081..2c44fef8d58b 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -114,7 +114,6 @@ struct imx_tve {
 	struct drm_encoder encoder;
 	struct imx_drm_encoder *imx_drm_encoder;
 	struct device *dev;
-	spinlock_t enable_lock;	/* serializes tve_enable/disable */
 	spinlock_t lock;	/* register lock */
 	bool enabled;
 	int mode;
@@ -146,10 +145,8 @@ __releases(&tve->lock)
 
 static void tve_enable(struct imx_tve *tve)
 {
-	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&tve->enable_lock, flags);
 	if (!tve->enabled) {
 		tve->enabled = true;
 		clk_prepare_enable(tve->clk);
@@ -169,23 +166,18 @@ static void tve_enable(struct imx_tve *tve)
 			     TVE_CD_SM_IEN |
 			     TVE_CD_LM_IEN |
 			     TVE_CD_MON_END_IEN);
-
-	spin_unlock_irqrestore(&tve->enable_lock, flags);
 }
 
 static void tve_disable(struct imx_tve *tve)
 {
-	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&tve->enable_lock, flags);
 	if (tve->enabled) {
 		tve->enabled = false;
 		ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG,
 					 TVE_IPU_CLK_EN | TVE_EN, 0);
 		clk_disable_unprepare(tve->clk);
 	}
-	spin_unlock_irqrestore(&tve->enable_lock, flags);
 }
 
 static int tve_setup_tvout(struct imx_tve *tve)
@@ -601,7 +593,6 @@ static int imx_tve_probe(struct platform_device *pdev)
 
 	tve->dev = &pdev->dev;
 	spin_lock_init(&tve->lock);
-	spin_lock_init(&tve->enable_lock);
 
 	ddc_node = of_parse_phandle(np, "ddc", 0);
 	if (ddc_node) {
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 7a22ce619ed2..97ca6924dbb3 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -996,35 +996,35 @@ static const struct ipu_platform_reg client_reg[] = {
 	},
 };
 
+static DEFINE_MUTEX(ipu_client_id_mutex);
 static int ipu_client_id;
 
-static int ipu_add_subdevice_pdata(struct device *dev,
-		const struct ipu_platform_reg *reg)
-{
-	struct platform_device *pdev;
-
-	pdev = platform_device_register_data(dev, reg->name, ipu_client_id++,
-			&reg->pdata, sizeof(struct ipu_platform_reg));
-
-	return PTR_ERR_OR_ZERO(pdev);
-}
-
 static int ipu_add_client_devices(struct ipu_soc *ipu)
 {
-	int ret;
-	int i;
+	struct device *dev = ipu->dev;
+	unsigned i;
+	int id, ret;
+
+	mutex_lock(&ipu_client_id_mutex);
+	id = ipu_client_id;
+	ipu_client_id += ARRAY_SIZE(client_reg);
+	mutex_unlock(&ipu_client_id_mutex);
 
 	for (i = 0; i < ARRAY_SIZE(client_reg); i++) {
 		const struct ipu_platform_reg *reg = &client_reg[i];
-		ret = ipu_add_subdevice_pdata(ipu->dev, reg);
-		if (ret)
+		struct platform_device *pdev;
+
+		pdev = platform_device_register_data(dev, reg->name,
+			id++, &reg->pdata, sizeof(reg->pdata));
+
+		if (IS_ERR(pdev))
 			goto err_register;
 	}
 
 	return 0;
 
 err_register:
-	platform_device_unregister_children(to_platform_device(ipu->dev));
+	platform_device_unregister_children(to_platform_device(dev));
 
 	return ret;
 }
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index d70e9119e906..00867190413c 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -465,6 +465,7 @@ int iscsit_del_np(struct iscsi_np *np)
 		 */
 		send_sig(SIGINT, np->np_thread, 1);
 		kthread_stop(np->np_thread);
+		np->np_thread = NULL;
 	}
 
 	np->np_transport->iscsit_free_np(np);
@@ -823,24 +824,22 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	if (((hdr->flags & ISCSI_FLAG_CMD_READ) ||
 	     (hdr->flags & ISCSI_FLAG_CMD_WRITE)) && !hdr->data_length) {
 		/*
-		 * Vmware ESX v3.0 uses a modified Cisco Initiator (v3.4.2)
-		 * that adds support for RESERVE/RELEASE.  There is a bug
-		 * add with this new functionality that sets R/W bits when
-		 * neither CDB carries any READ or WRITE datapayloads.
+		 * From RFC-3720 Section 10.3.1:
+		 *
+		 * "Either or both of R and W MAY be 1 when either the
+		 *  Expected Data Transfer Length and/or Bidirectional Read
+		 *  Expected Data Transfer Length are 0"
+		 *
+		 * For this case, go ahead and clear the unnecssary bits
+		 * to avoid any confusion with ->data_direction.
 		 */
-		if ((hdr->cdb[0] == 0x16) || (hdr->cdb[0] == 0x17)) {
-			hdr->flags &= ~ISCSI_FLAG_CMD_READ;
-			hdr->flags &= ~ISCSI_FLAG_CMD_WRITE;
-			goto done;
-		}
+		hdr->flags &= ~ISCSI_FLAG_CMD_READ;
+		hdr->flags &= ~ISCSI_FLAG_CMD_WRITE;
 
-		pr_err("ISCSI_FLAG_CMD_READ or ISCSI_FLAG_CMD_WRITE"
+		pr_warn("ISCSI_FLAG_CMD_READ or ISCSI_FLAG_CMD_WRITE"
 			" set when Expected Data Transfer Length is 0 for"
-			" CDB: 0x%02x. Bad iSCSI Initiator.\n", hdr->cdb[0]);
-		return iscsit_add_reject_cmd(cmd,
-					     ISCSI_REASON_BOOKMARK_INVALID, buf);
+			" CDB: 0x%02x, Fixing up flags\n", hdr->cdb[0]);
 	}
-done:
 
 	if (!(hdr->flags & ISCSI_FLAG_CMD_READ) &&
 	    !(hdr->flags & ISCSI_FLAG_CMD_WRITE) && (hdr->data_length != 0)) {
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index e3318edb233d..1c0088fe9e99 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -474,7 +474,8 @@ static ssize_t __iscsi_##prefix##_store_##name(				\
 									\
 	if (!capable(CAP_SYS_ADMIN))					\
 		return -EPERM;						\
-									\
+	if (count >= sizeof(auth->name))				\
+		return -EINVAL;						\
 	snprintf(auth->name, sizeof(auth->name), "%s", page);		\
 	if (!strncmp("NULL", auth->name, 4))				\
 		auth->naf_flags &= ~flags;				\
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 4eb93b2b6473..e29279e6b577 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -1403,11 +1403,6 @@ old_sess_out:
 
 out:
 	stop = kthread_should_stop();
-	if (!stop && signal_pending(current)) {
-		spin_lock_bh(&np->np_thread_lock);
-		stop = (np->np_thread_state == ISCSI_NP_THREAD_SHUTDOWN);
-		spin_unlock_bh(&np->np_thread_lock);
-	}
 	/* Wait for another socket.. */
 	if (!stop)
 		return 1;
@@ -1415,7 +1410,6 @@ exit:
 	iscsi_stop_login_thread_timer(np);
 	spin_lock_bh(&np->np_thread_lock);
 	np->np_thread_state = ISCSI_NP_THREAD_EXIT;
-	np->np_thread = NULL;
 	spin_unlock_bh(&np->np_thread_lock);
 
 	return 0;
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 207b340498a3..d06de84b069b 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1106,6 +1106,11 @@ int se_dev_set_block_size(struct se_device *dev, u32 block_size)
 	dev->dev_attrib.block_size = block_size;
 	pr_debug("dev[%p]: SE Device block_size changed to %u\n",
 			dev, block_size);
+
+	if (dev->dev_attrib.max_bytes_per_io)
+		dev->dev_attrib.hw_max_sectors =
+			dev->dev_attrib.max_bytes_per_io / block_size;
+
 	return 0;
 }
 
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 0e34cda3271e..78241a53b555 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -66,9 +66,8 @@ static int fd_attach_hba(struct se_hba *hba, u32 host_id)
 	pr_debug("CORE_HBA[%d] - TCM FILEIO HBA Driver %s on Generic"
 		" Target Core Stack %s\n", hba->hba_id, FD_VERSION,
 		TARGET_CORE_MOD_VERSION);
-	pr_debug("CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic"
-		" MaxSectors: %u\n",
-		hba->hba_id, fd_host->fd_host_id, FD_MAX_SECTORS);
+	pr_debug("CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic\n",
+		hba->hba_id, fd_host->fd_host_id);
 
 	return 0;
 }
@@ -220,7 +219,8 @@ static int fd_configure_device(struct se_device *dev)
 	}
 
 	dev->dev_attrib.hw_block_size = fd_dev->fd_block_size;
-	dev->dev_attrib.hw_max_sectors = FD_MAX_SECTORS;
+	dev->dev_attrib.max_bytes_per_io = FD_MAX_BYTES;
+	dev->dev_attrib.hw_max_sectors = FD_MAX_BYTES / fd_dev->fd_block_size;
 	dev->dev_attrib.hw_queue_depth = FD_MAX_DEVICE_QUEUE_DEPTH;
 
 	if (fd_dev->fbd_flags & FDBD_HAS_BUFFERED_IO_WCE) {
diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h
index 37ffc5bd2399..d7772c167685 100644
--- a/drivers/target/target_core_file.h
+++ b/drivers/target/target_core_file.h
@@ -7,7 +7,10 @@
 #define FD_DEVICE_QUEUE_DEPTH	32
 #define FD_MAX_DEVICE_QUEUE_DEPTH 128
 #define FD_BLOCKSIZE		512
-#define FD_MAX_SECTORS		2048
+/*
+ * Limited by the number of iovecs (2048) per vfs_[writev,readv] call
+ */
+#define FD_MAX_BYTES		8388608
 
 #define RRF_EMULATE_CDB		0x01
 #define RRF_GOT_LBA		0x02
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index f697f8baec54..2a573de19a9f 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -278,7 +278,6 @@ struct se_node_acl *core_tpg_check_initiator_node_acl(
 	snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
 	acl->se_tpg = tpg;
 	acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
-	spin_lock_init(&acl->stats_lock);
 	acl->dynamic_node_acl = 1;
 
 	tpg->se_tpg_tfo->set_default_node_attributes(acl);
@@ -406,7 +405,6 @@ struct se_node_acl *core_tpg_add_initiator_node_acl(
 	snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
 	acl->se_tpg = tpg;
 	acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
-	spin_lock_init(&acl->stats_lock);
 
 	tpg->se_tpg_tfo->set_default_node_attributes(acl);
 
@@ -658,15 +656,9 @@ static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
 	spin_lock_init(&lun->lun_sep_lock);
 	init_completion(&lun->lun_ref_comp);
 
-	ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release);
-	if (ret < 0)
-		return ret;
-
 	ret = core_tpg_post_addlun(se_tpg, lun, lun_access, dev);
-	if (ret < 0) {
-		percpu_ref_cancel_init(&lun->lun_ref);
+	if (ret < 0)
 		return ret;
-	}
 
 	return 0;
 }
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 268b62768f2b..34aacaaae14a 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -93,6 +93,7 @@ struct n_tty_data {
 	size_t canon_head;
 	size_t echo_head;
 	size_t echo_commit;
+	size_t echo_mark;
 	DECLARE_BITMAP(char_map, 256);
 
 	/* private to n_tty_receive_overrun (single-threaded) */
@@ -336,6 +337,7 @@ static void reset_buffer_flags(struct n_tty_data *ldata)
 {
 	ldata->read_head = ldata->canon_head = ldata->read_tail = 0;
 	ldata->echo_head = ldata->echo_tail = ldata->echo_commit = 0;
+	ldata->echo_mark = 0;
 	ldata->line_start = 0;
 
 	ldata->erasing = 0;
@@ -787,6 +789,7 @@ static void commit_echoes(struct tty_struct *tty)
 	size_t head;
 
 	head = ldata->echo_head;
+	ldata->echo_mark = head;
 	old = ldata->echo_commit - ldata->echo_tail;
 
 	/* Process committed echoes if the accumulated # of bytes
@@ -811,10 +814,11 @@ static void process_echoes(struct tty_struct *tty)
 	size_t echoed;
 
 	if ((!L_ECHO(tty) && !L_ECHONL(tty)) ||
-	    ldata->echo_commit == ldata->echo_tail)
+	    ldata->echo_mark == ldata->echo_tail)
 		return;
 
 	mutex_lock(&ldata->output_lock);
+	ldata->echo_commit = ldata->echo_mark;
 	echoed = __process_echoes(tty);
 	mutex_unlock(&ldata->output_lock);
 
@@ -822,6 +826,7 @@ static void process_echoes(struct tty_struct *tty)
 		tty->ops->flush_chars(tty);
 }
 
+/* NB: echo_mark and echo_head should be equivalent here */
 static void flush_echoes(struct tty_struct *tty)
 {
 	struct n_tty_data *ldata = tty->disc_data;
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 4658e3e0ec42..06525f10e364 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -96,7 +96,8 @@ static void dw8250_serial_out(struct uart_port *p, int offset, int value)
 	if (offset == UART_LCR) {
 		int tries = 1000;
 		while (tries--) {
-			if (value == p->serial_in(p, UART_LCR))
+			unsigned int lcr = p->serial_in(p, UART_LCR);
+			if ((value & ~UART_LCR_SPAR) == (lcr & ~UART_LCR_SPAR))
 				return;
 			dw8250_force_idle(p);
 			writeb(value, p->membase + (UART_LCR << p->regshift));
@@ -132,7 +133,8 @@ static void dw8250_serial_out32(struct uart_port *p, int offset, int value)
 	if (offset == UART_LCR) {
 		int tries = 1000;
 		while (tries--) {
-			if (value == p->serial_in(p, UART_LCR))
+			unsigned int lcr = p->serial_in(p, UART_LCR);
+			if ((value & ~UART_LCR_SPAR) == (lcr & ~UART_LCR_SPAR))
 				return;
 			dw8250_force_idle(p);
 			writel(value, p->membase + (UART_LCR << p->regshift));
@@ -455,6 +457,8 @@ MODULE_DEVICE_TABLE(of, dw8250_of_match);
 static const struct acpi_device_id dw8250_acpi_match[] = {
 	{ "INT33C4", 0 },
 	{ "INT33C5", 0 },
+	{ "INT3434", 0 },
+	{ "INT3435", 0 },
 	{ "80860F0A", 0 },
 	{ },
 };
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index e46e9f3f19b9..f619ad5b5eae 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -240,6 +240,7 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
 					continue;
 			}
 
+#ifdef SUPPORT_SYSRQ
 			/*
 			 * uart_handle_sysrq_char() doesn't work if
 			 * spinlocked, for some reason
@@ -253,6 +254,7 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
 				}
 				spin_lock(&port->lock);
 			}
+#endif
 
 			port->icount.rx++;
 
diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c
index 22fad8ad5ac2..d8a55e87877f 100644
--- a/drivers/tty/tty_ldsem.c
+++ b/drivers/tty/tty_ldsem.c
@@ -86,11 +86,21 @@ static inline long ldsem_atomic_update(long delta, struct ld_semaphore *sem)
 	return atomic_long_add_return(delta, (atomic_long_t *)&sem->count);
 }
 
+/*
+ * ldsem_cmpxchg() updates @*old with the last-known sem->count value.
+ * Returns 1 if count was successfully changed; @*old will have @new value.
+ * Returns 0 if count was not changed; @*old will have most recent sem->count
+ */
 static inline int ldsem_cmpxchg(long *old, long new, struct ld_semaphore *sem)
 {
-	long tmp = *old;
-	*old = atomic_long_cmpxchg(&sem->count, *old, new);
-	return *old == tmp;
+	long tmp = atomic_long_cmpxchg(&sem->count, *old, new);
+	if (tmp == *old) {
+		*old = new;
+		return 1;
+	} else {
+		*old = tmp;
+		return 0;
+	}
 }
 
 /*
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 50754073fae0..9a5ef205cffd 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -643,6 +643,10 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 			: CI_ROLE_GADGET;
 	}
 
+	/* only update vbus status for peripheral */
+	if (ci->role == CI_ROLE_GADGET)
+		ci_handle_vbus_change(ci);
+
 	ret = ci_role_start(ci, ci->role);
 	if (ret) {
 		dev_err(dev, "can't start %s role\n", ci_role(ci)->name);
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index b34c81969cba..69d20fbb38a2 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1795,9 +1795,6 @@ static int udc_start(struct ci_hdrc *ci)
 	pm_runtime_no_callbacks(&ci->gadget.dev);
 	pm_runtime_enable(&ci->gadget.dev);
 
-	/* Update ci->vbus_active */
-	ci_handle_vbus_change(ci);
-
 	return retval;
 
 destroy_eps:
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 750afa9774b4..590ff8b5aa20 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -860,13 +860,11 @@ static int wdm_manage_power(struct usb_interface *intf, int on)
 {
 	/* need autopm_get/put here to ensure the usbcore sees the new value */
 	int rv = usb_autopm_get_interface(intf);
-	if (rv < 0)
-		goto err;
 
 	intf->needs_remote_wakeup = on;
-	usb_autopm_put_interface(intf);
-err:
-	return rv;
+	if (!rv)
+		usb_autopm_put_interface(intf);
+	return 0;
 }
 
 static int wdm_probe(struct usb_interface *intf, const struct usb_device_id *id)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 74f9cf02da07..a49217ae3533 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -455,9 +455,6 @@ static int dwc3_probe(struct platform_device *pdev)
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 
-	usb_phy_set_suspend(dwc->usb2_phy, 0);
-	usb_phy_set_suspend(dwc->usb3_phy, 0);
-
 	spin_lock_init(&dwc->lock);
 	platform_set_drvdata(pdev, dwc);
 
@@ -488,6 +485,9 @@ static int dwc3_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
+	usb_phy_set_suspend(dwc->usb2_phy, 0);
+	usb_phy_set_suspend(dwc->usb3_phy, 0);
+
 	ret = dwc3_event_buffers_setup(dwc);
 	if (ret) {
 		dev_err(dwc->dev, "failed to setup event buffers\n");
@@ -569,6 +569,8 @@ err2:
 	dwc3_event_buffers_cleanup(dwc);
 
 err1:
+	usb_phy_set_suspend(dwc->usb2_phy, 1);
+	usb_phy_set_suspend(dwc->usb3_phy, 1);
 	dwc3_core_exit(dwc);
 
 err0:
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 6d4cf931de5b..2d0ee5e3127c 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -136,23 +136,27 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
 	struct ohci_hcd *ohci;
 	int retval;
 	struct usb_hcd *hcd = NULL;
-
-	if (pdev->num_resources != 2) {
-		pr_debug("hcd probe: invalid num_resources");
-		return -ENODEV;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	int irq;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_dbg(dev, "hcd probe: missing memory resource\n");
+		return -ENXIO;
 	}
 
-	if ((pdev->resource[0].flags != IORESOURCE_MEM)
-			|| (pdev->resource[1].flags != IORESOURCE_IRQ)) {
-		pr_debug("hcd probe: invalid resource type\n");
-		return -ENODEV;
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_dbg(dev, "hcd probe: missing irq resource\n");
+		return irq;
 	}
 
 	hcd = usb_create_hcd(driver, dev, "at91");
 	if (!hcd)
 		return -ENOMEM;
-	hcd->rsrc_start = pdev->resource[0].start;
-	hcd->rsrc_len = resource_size(&pdev->resource[0]);
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
 
 	hcd->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(hcd->regs)) {
@@ -192,8 +196,8 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
 	ohci->num_ports = board->ports;
 	at91_start_hc(pdev);
 
-	retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
-	if (retval == 0) {
+	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
+	if (retval == 0)
 		device_wakeup_enable(hcd->self.controller);
 		return retval;
 	}
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 4221dee924b5..3c898c12a06b 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -128,7 +128,12 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		 * any other sleep) on Haswell machines with LPT and LPT-LP
 		 * with the new Intel BIOS
 		 */
-		xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
+		/* Limit the quirk to only known vendors, as this triggers
+		 * yet another BIOS bug on some other machines
+		 * https://bugzilla.kernel.org/show_bug.cgi?id=66171
+		 */
+		if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP)
+			xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
 			pdev->device == PCI_DEVICE_ID_ASROCK_P67) {
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 08e2f39027ec..2b41c636a52a 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -19,8 +19,9 @@ config AB8500_USB
 	  in host mode, low speed.
 
 config FSL_USB2_OTG
-	bool "Freescale USB OTG Transceiver Driver"
+	tristate "Freescale USB OTG Transceiver Driver"
 	depends on USB_EHCI_FSL && USB_FSL_USB2 && PM_RUNTIME
+	depends on USB
 	select USB_OTG
 	select USB_PHY
 	help
@@ -29,6 +30,7 @@ config FSL_USB2_OTG
 config ISP1301_OMAP
 	tristate "Philips ISP1301 with OMAP OTG"
 	depends on I2C && ARCH_OMAP_OTG
+	depends on USB
 	select USB_PHY
 	help
 	  If you say yes here you get support for the Philips ISP1301
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 82232acf1ab6..bbe4f8e6e8d7 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -876,7 +876,7 @@ static int utmi_phy_probe(struct tegra_usb_phy *tegra_phy,
 
 	tegra_phy->pad_regs = devm_ioremap(&pdev->dev, res->start,
 		resource_size(res));
-	if (!tegra_phy->regs) {
+	if (!tegra_phy->pad_regs) {
 		dev_err(&pdev->dev, "Failed to remap UTMI Pad regs\n");
 		return -ENOMEM;
 	}
diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
index 30e8a61552d4..bad57ce77ba5 100644
--- a/drivers/usb/phy/phy-twl6030-usb.c
+++ b/drivers/usb/phy/phy-twl6030-usb.c
@@ -127,7 +127,8 @@ static inline int twl6030_writeb(struct twl6030_usb *twl, u8 module,
 
 static inline u8 twl6030_readb(struct twl6030_usb *twl, u8 module, u8 address)
 {
-	u8 data, ret = 0;
+	u8 data;
+	int ret;
 
 	ret = twl_i2c_read_u8(module, &data, address);
 	if (ret >= 0)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 71c875a9322b..c44400ca53a4 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -251,6 +251,7 @@ static void option_instat_callback(struct urb *urb);
 #define ZTE_PRODUCT_MF628			0x0015
 #define ZTE_PRODUCT_MF626			0x0031
 #define ZTE_PRODUCT_MC2718			0xffe8
+#define ZTE_PRODUCT_AC2726			0xfff1
 
 #define BENQ_VENDOR_ID				0x04a5
 #define BENQ_PRODUCT_H10			0x4068
@@ -1464,6 +1465,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x01) },
 	{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x05) },
 	{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x86, 0x10) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC2726, 0xff, 0xff, 0xff) },
 
 	{ USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_H10) },
 	{ USB_DEVICE(DLINK_VENDOR_ID, DLINK_PRODUCT_DWM_652) },
diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c
index fca4c752a4ed..eae2c873b39f 100644
--- a/drivers/usb/serial/zte_ev.c
+++ b/drivers/usb/serial/zte_ev.c
@@ -281,8 +281,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x19d2, 0xfffd) },
 	{ USB_DEVICE(0x19d2, 0xfffc) },
 	{ USB_DEVICE(0x19d2, 0xfffb) },
-	/* AC2726, AC8710_V3 */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xfff1, 0xff, 0xff, 0xff) },
+	/* AC8710_V3 */
 	{ USB_DEVICE(0x19d2, 0xfff6) },
 	{ USB_DEVICE(0x19d2, 0xfff7) },
 	{ USB_DEVICE(0x19d2, 0xfff8) },
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 55ea73f7c70b..4c02e2b94103 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -350,17 +350,19 @@ static enum bp_state increase_reservation(unsigned long nr_pages)
 
 		pfn = page_to_pfn(page);
 
-		set_phys_to_machine(pfn, frame_list[i]);
-
 #ifdef CONFIG_XEN_HAVE_PVMMU
-		/* Link back into the page tables if not highmem. */
-		if (xen_pv_domain() && !PageHighMem(page)) {
-			int ret;
-			ret = HYPERVISOR_update_va_mapping(
-				(unsigned long)__va(pfn << PAGE_SHIFT),
-				mfn_pte(frame_list[i], PAGE_KERNEL),
-				0);
-			BUG_ON(ret);
+		if (!xen_feature(XENFEAT_auto_translated_physmap)) {
+			set_phys_to_machine(pfn, frame_list[i]);
+
+			/* Link back into the page tables if not highmem. */
+			if (!PageHighMem(page)) {
+				int ret;
+				ret = HYPERVISOR_update_va_mapping(
+						(unsigned long)__va(pfn << PAGE_SHIFT),
+						mfn_pte(frame_list[i], PAGE_KERNEL),
+						0);
+				BUG_ON(ret);
+			}
 		}
 #endif
 
@@ -378,7 +380,6 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
 	enum bp_state state = BP_DONE;
 	unsigned long  pfn, i;
 	struct page   *page;
-	struct page   *scratch_page;
 	int ret;
 	struct xen_memory_reservation reservation = {
 		.address_bits = 0,
@@ -411,27 +412,29 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
 
 		scrub_page(page);
 
+#ifdef CONFIG_XEN_HAVE_PVMMU
 		/*
 		 * Ballooned out frames are effectively replaced with
 		 * a scratch frame.  Ensure direct mappings and the
 		 * p2m are consistent.
 		 */
-		scratch_page = get_balloon_scratch_page();
-#ifdef CONFIG_XEN_HAVE_PVMMU
-		if (xen_pv_domain() && !PageHighMem(page)) {
-			ret = HYPERVISOR_update_va_mapping(
-				(unsigned long)__va(pfn << PAGE_SHIFT),
-				pfn_pte(page_to_pfn(scratch_page),
-					PAGE_KERNEL_RO), 0);
-			BUG_ON(ret);
-		}
-#endif
 		if (!xen_feature(XENFEAT_auto_translated_physmap)) {
 			unsigned long p;
+			struct page   *scratch_page = get_balloon_scratch_page();
+
+			if (!PageHighMem(page)) {
+				ret = HYPERVISOR_update_va_mapping(
+						(unsigned long)__va(pfn << PAGE_SHIFT),
+						pfn_pte(page_to_pfn(scratch_page),
+							PAGE_KERNEL_RO), 0);
+				BUG_ON(ret);
+			}
 			p = page_to_pfn(scratch_page);
 			__set_phys_to_machine(pfn, pfn_to_mfn(p));
+
+			put_balloon_scratch_page();
 		}
-		put_balloon_scratch_page();
+#endif
 
 		balloon_append(pfn_to_page(pfn));
 	}
@@ -627,15 +630,17 @@ static int __init balloon_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
-	for_each_online_cpu(cpu)
-	{
-		per_cpu(balloon_scratch_page, cpu) = alloc_page(GFP_KERNEL);
-		if (per_cpu(balloon_scratch_page, cpu) == NULL) {
-			pr_warn("Failed to allocate balloon_scratch_page for cpu %d\n", cpu);
-			return -ENOMEM;
+	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
+		for_each_online_cpu(cpu)
+		{
+			per_cpu(balloon_scratch_page, cpu) = alloc_page(GFP_KERNEL);
+			if (per_cpu(balloon_scratch_page, cpu) == NULL) {
+				pr_warn("Failed to allocate balloon_scratch_page for cpu %d\n", cpu);
+				return -ENOMEM;
+			}
 		}
+		register_cpu_notifier(&balloon_cpu_notifier);
 	}
-	register_cpu_notifier(&balloon_cpu_notifier);
 
 	pr_info("Initialising balloon driver\n");
 
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 028387192b60..aa846a48f400 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -1176,7 +1176,8 @@ static int gnttab_setup(void)
 		gnttab_shared.addr = xen_remap(xen_hvm_resume_frames,
 						PAGE_SIZE * max_nr_gframes);
 		if (gnttab_shared.addr == NULL) {
-			pr_warn("Failed to ioremap gnttab share frames!\n");
+			pr_warn("Failed to ioremap gnttab share frames (addr=0x%08lx)!\n",
+					xen_hvm_resume_frames);
 			return -ENOMEM;
 		}
 	}
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 8e74590fa1bb..569a13b9e856 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -533,12 +533,17 @@ static void privcmd_close(struct vm_area_struct *vma)
 {
 	struct page **pages = vma->vm_private_data;
 	int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	int rc;
 
 	if (!xen_feature(XENFEAT_auto_translated_physmap) || !numpgs || !pages)
 		return;
 
-	xen_unmap_domain_mfn_range(vma, numpgs, pages);
-	free_xenballooned_pages(numpgs, pages);
+	rc = xen_unmap_domain_mfn_range(vma, numpgs, pages);
+	if (rc == 0)
+		free_xenballooned_pages(numpgs, pages);
+	else
+		pr_crit("unable to unmap MFN range: leaking %d pages. rc=%d\n",
+			numpgs, rc);
 	kfree(pages);
 }