diff --git a/Documentation/device-mapper/cache.txt b/Documentation/device-mapper/cache.txt
index 274752f..719320b 100644
--- a/Documentation/device-mapper/cache.txt
+++ b/Documentation/device-mapper/cache.txt
@@ -266,10 +266,12 @@
 Invalidation is removing an entry from the cache without writing it
 back.  Cache blocks can be invalidated via the invalidate_cblocks
 message, which takes an arbitrary number of cblock ranges.  Each cblock
-must be expressed as a decimal value, in the future a variant message
-that takes cblock ranges expressed in hexidecimal may be needed to
-better support efficient invalidation of larger caches.  The cache must
-be in passthrough mode when invalidate_cblocks is used.
+range's end value is "one past the end", meaning 5-10 expresses a range
+of values from 5 to 9.  Each cblock must be expressed as a decimal
+value, in the future a variant message that takes cblock ranges
+expressed in hexidecimal may be needed to better support efficient
+invalidation of larger caches.  The cache must be in passthrough mode
+when invalidate_cblocks is used.
 
    invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*
 
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 2ee0c9b..9063ae6 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -8,6 +8,7 @@
 
 config ARC
 	def_bool y
+	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS
 	# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
 	select DEVTMPFS if !INITRAMFS_SOURCE=""
diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h
index 6f30484..68125dd 100644
--- a/arch/arc/include/uapi/asm/unistd.h
+++ b/arch/arc/include/uapi/asm/unistd.h
@@ -8,6 +8,9 @@
 
 /******** no-legacy-syscalls-ABI *******/
 
+#ifndef _UAPI_ASM_ARC_UNISTD_H
+#define _UAPI_ASM_ARC_UNISTD_H
+
 #define __ARCH_WANT_SYS_EXECVE
 #define __ARCH_WANT_SYS_CLONE
 #define __ARCH_WANT_SYS_VFORK
@@ -32,3 +35,5 @@
 /* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */
 #define __NR_sysfs		(__NR_arch_specific_syscall + 3)
 __SYSCALL(__NR_sysfs, sys_sysfs)
+
+#endif
diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
index e46d81f..63177e4 100644
--- a/arch/arc/kernel/perf_event.c
+++ b/arch/arc/kernel/perf_event.c
@@ -79,9 +79,9 @@
 	cache_result	= (config >> 16) & 0xff;
 	if (cache_type >= PERF_COUNT_HW_CACHE_MAX)
 		return -EINVAL;
-	if (cache_type >= PERF_COUNT_HW_CACHE_OP_MAX)
+	if (cache_op >= PERF_COUNT_HW_CACHE_OP_MAX)
 		return -EINVAL;
-	if (cache_type >= PERF_COUNT_HW_CACHE_RESULT_MAX)
+	if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX)
 		return -EINVAL;
 
 	ret = arc_pmu_cache_map[cache_type][cache_op][cache_result];
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 9ecccc8..6976b03 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -100,23 +100,19 @@
 #define TASK_UNMAPPED_BASE	UL(0x00000000)
 #endif
 
-#ifndef PHYS_OFFSET
-#define PHYS_OFFSET 		UL(CONFIG_DRAM_BASE)
-#endif
-
 #ifndef END_MEM
 #define END_MEM     		(UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE)
 #endif
 
 #ifndef PAGE_OFFSET
-#define PAGE_OFFSET		(PHYS_OFFSET)
+#define PAGE_OFFSET		PLAT_PHYS_OFFSET
 #endif
 
 /*
  * The module can be at any place in ram in nommu mode.
  */
 #define MODULES_END		(END_MEM)
-#define MODULES_VADDR		(PHYS_OFFSET)
+#define MODULES_VADDR		PAGE_OFFSET
 
 #define XIP_VIRT_ADDR(physaddr)  (physaddr)
 
@@ -157,6 +153,16 @@
 #endif
 #define ARCH_PGD_MASK		((1 << ARCH_PGD_SHIFT) - 1)
 
+/*
+ * PLAT_PHYS_OFFSET is the offset (from zero) of the start of physical
+ * memory.  This is used for XIP and NoMMU kernels, or by kernels which
+ * have their own mach/memory.h.  Assembly code must always use
+ * PLAT_PHYS_OFFSET and not PHYS_OFFSET.
+ */
+#ifndef PLAT_PHYS_OFFSET
+#define PLAT_PHYS_OFFSET	UL(CONFIG_PHYS_OFFSET)
+#endif
+
 #ifndef __ASSEMBLY__
 
 /*
@@ -239,6 +245,8 @@
 
 #else
 
+#define PHYS_OFFSET	PLAT_PHYS_OFFSET
+
 static inline phys_addr_t __virt_to_phys(unsigned long x)
 {
 	return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
@@ -251,17 +259,6 @@
 
 #endif
 #endif
-#endif /* __ASSEMBLY__ */
-
-#ifndef PHYS_OFFSET
-#ifdef PLAT_PHYS_OFFSET
-#define PHYS_OFFSET	PLAT_PHYS_OFFSET
-#else
-#define PHYS_OFFSET	UL(CONFIG_PHYS_OFFSET)
-#endif
-#endif
-
-#ifndef __ASSEMBLY__
 
 /*
  * PFNs are used to describe any physical page; this means
diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
index 14235ba..716249c 100644
--- a/arch/arm/kernel/head-nommu.S
+++ b/arch/arm/kernel/head-nommu.S
@@ -68,7 +68,7 @@
 
 #ifdef CONFIG_ARM_MPU
 	/* Calculate the size of a region covering just the kernel */
-	ldr	r5, =PHYS_OFFSET		@ Region start: PHYS_OFFSET
+	ldr	r5, =PLAT_PHYS_OFFSET		@ Region start: PHYS_OFFSET
 	ldr     r6, =(_end)			@ Cover whole kernel
 	sub	r6, r6, r5			@ Minimum size of region to map
 	clz	r6, r6				@ Region size must be 2^N...
@@ -213,7 +213,7 @@
 	set_region_nr r0, #MPU_RAM_REGION
 	isb
 	/* Full access from PL0, PL1, shared for CONFIG_SMP, cacheable */
-	ldr	r0, =PHYS_OFFSET		@ RAM starts at PHYS_OFFSET
+	ldr	r0, =PLAT_PHYS_OFFSET		@ RAM starts at PHYS_OFFSET
 	ldr	r5,=(MPU_AP_PL1RW_PL0RW | MPU_RGN_NORMAL)
 
 	setup_region r0, r5, r6, MPU_DATA_SIDE	@ PHYS_OFFSET, shared, enabled
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 11d59b3..32f317e 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -110,7 +110,7 @@
 	sub	r4, r3, r4			@ (PHYS_OFFSET - PAGE_OFFSET)
 	add	r8, r8, r4			@ PHYS_OFFSET
 #else
-	ldr	r8, =PHYS_OFFSET		@ always constant in this case
+	ldr	r8, =PLAT_PHYS_OFFSET		@ always constant in this case
 #endif
 
 	/*
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 94f6b05..92f7b15 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -404,6 +404,7 @@
 unsigned long get_wchan(struct task_struct *p)
 {
 	struct stackframe frame;
+	unsigned long stack_page;
 	int count = 0;
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
@@ -412,9 +413,11 @@
 	frame.sp = thread_saved_sp(p);
 	frame.lr = 0;			/* recovered from the stack */
 	frame.pc = thread_saved_pc(p);
+	stack_page = (unsigned long)task_stack_page(p);
 	do {
-		int ret = unwind_frame(&frame);
-		if (ret < 0)
+		if (frame.sp < stack_page ||
+		    frame.sp >= stack_page + THREAD_SIZE ||
+		    unwind_frame(&frame) < 0)
 			return 0;
 		if (!in_sched_functions(frame.pc))
 			return frame.pc;
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 6a1b8a8..987a7f5 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -873,8 +873,6 @@
 	machine_desc = mdesc;
 	machine_name = mdesc->name;
 
-	setup_dma_zone(mdesc);
-
 	if (mdesc->reboot_mode != REBOOT_HARD)
 		reboot_mode = mdesc->reboot_mode;
 
@@ -892,6 +890,7 @@
 	sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
 
 	early_paging_init(mdesc, lookup_processor_type(read_cpuid_id()));
+	setup_dma_zone(mdesc);
 	sanity_check_meminfo();
 	arm_memblock_init(&meminfo, mdesc);
 
diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index 00f79e5..af4e8c8 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -31,7 +31,7 @@
 	high = ALIGN(low, THREAD_SIZE);
 
 	/* check current frame pointer is within bounds */
-	if (fp < (low + 12) || fp + 4 >= high)
+	if (fp < low + 12 || fp > high - 4)
 		return -EINVAL;
 
 	/* restore the registers from the stack frame */
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index dbf0923..7940241 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -509,9 +509,10 @@
 __do_cache_op(unsigned long start, unsigned long end)
 {
 	int ret;
-	unsigned long chunk = PAGE_SIZE;
 
 	do {
+		unsigned long chunk = min(PAGE_SIZE, end - start);
+
 		if (signal_pending(current)) {
 			struct thread_info *ti = current_thread_info();
 
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index f6b6bfa..f61a570 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -158,13 +158,49 @@
 };
 EXPORT_SYMBOL(arm_coherent_dma_ops);
 
+static int __dma_supported(struct device *dev, u64 mask, bool warn)
+{
+	unsigned long max_dma_pfn;
+
+	/*
+	 * If the mask allows for more memory than we can address,
+	 * and we actually have that much memory, then we must
+	 * indicate that DMA to this device is not supported.
+	 */
+	if (sizeof(mask) != sizeof(dma_addr_t) &&
+	    mask > (dma_addr_t)~0 &&
+	    dma_to_pfn(dev, ~0) < max_pfn) {
+		if (warn) {
+			dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
+				 mask);
+			dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
+		}
+		return 0;
+	}
+
+	max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
+
+	/*
+	 * Translate the device's DMA mask to a PFN limit.  This
+	 * PFN number includes the page which we can DMA to.
+	 */
+	if (dma_to_pfn(dev, mask) < max_dma_pfn) {
+		if (warn)
+			dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n",
+				 mask,
+				 dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1,
+				 max_dma_pfn + 1);
+		return 0;
+	}
+
+	return 1;
+}
+
 static u64 get_coherent_dma_mask(struct device *dev)
 {
 	u64 mask = (u64)DMA_BIT_MASK(32);
 
 	if (dev) {
-		unsigned long max_dma_pfn;
-
 		mask = dev->coherent_dma_mask;
 
 		/*
@@ -176,34 +212,8 @@
 			return 0;
 		}
 
-		max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
-
-		/*
-		 * If the mask allows for more memory than we can address,
-		 * and we actually have that much memory, then fail the
-		 * allocation.
-		 */
-		if (sizeof(mask) != sizeof(dma_addr_t) &&
-		    mask > (dma_addr_t)~0 &&
-		    dma_to_pfn(dev, ~0) > max_dma_pfn) {
-			dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
-				 mask);
-			dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
+		if (!__dma_supported(dev, mask, true))
 			return 0;
-		}
-
-		/*
-		 * Now check that the mask, when translated to a PFN,
-		 * fits within the allowable addresses which we can
-		 * allocate.
-		 */
-		if (dma_to_pfn(dev, mask) < max_dma_pfn) {
-			dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n",
-				 mask,
-				 dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1,
-				 arm_dma_pfn_limit + 1);
-			return 0;
-		}
 	}
 
 	return mask;
@@ -1032,28 +1042,7 @@
  */
 int dma_supported(struct device *dev, u64 mask)
 {
-	unsigned long limit;
-
-	/*
-	 * If the mask allows for more memory than we can address,
-	 * and we actually have that much memory, then we must
-	 * indicate that DMA to this device is not supported.
-	 */
-	if (sizeof(mask) != sizeof(dma_addr_t) &&
-	    mask > (dma_addr_t)~0 &&
-	    dma_to_pfn(dev, ~0) > arm_dma_pfn_limit)
-		return 0;
-
-	/*
-	 * Translate the device's DMA mask to a PFN limit.  This
-	 * PFN number includes the page which we can DMA to.
-	 */
-	limit = dma_to_pfn(dev, mask);
-
-	if (limit < arm_dma_pfn_limit)
-		return 0;
-
-	return 1;
+	return __dma_supported(dev, mask, false);
 }
 EXPORT_SYMBOL(dma_supported);
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 3e8f106..1f7b19a 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -229,7 +229,7 @@
 #ifdef CONFIG_ZONE_DMA
 	if (mdesc->dma_zone_size) {
 		arm_dma_zone_size = mdesc->dma_zone_size;
-		arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;
+		arm_dma_limit = __pv_phys_offset + arm_dma_zone_size - 1;
 	} else
 		arm_dma_limit = 0xffffffff;
 	arm_dma_pfn_limit = arm_dma_limit >> PAGE_SHIFT;
diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c
index 98745dd..81f9775 100644
--- a/drivers/base/regmap/regmap-mmio.c
+++ b/drivers/base/regmap/regmap-mmio.c
@@ -40,7 +40,7 @@
 
 	BUG_ON(reg_size != 4);
 
-	if (ctx->clk) {
+	if (!IS_ERR(ctx->clk)) {
 		ret = clk_enable(ctx->clk);
 		if (ret < 0)
 			return ret;
@@ -73,7 +73,7 @@
 		offset += ctx->val_bytes;
 	}
 
-	if (ctx->clk)
+	if (!IS_ERR(ctx->clk))
 		clk_disable(ctx->clk);
 
 	return 0;
@@ -96,7 +96,7 @@
 
 	BUG_ON(reg_size != 4);
 
-	if (ctx->clk) {
+	if (!IS_ERR(ctx->clk)) {
 		ret = clk_enable(ctx->clk);
 		if (ret < 0)
 			return ret;
@@ -129,7 +129,7 @@
 		offset += ctx->val_bytes;
 	}
 
-	if (ctx->clk)
+	if (!IS_ERR(ctx->clk))
 		clk_disable(ctx->clk);
 
 	return 0;
@@ -139,7 +139,7 @@
 {
 	struct regmap_mmio_context *ctx = context;
 
-	if (ctx->clk) {
+	if (!IS_ERR(ctx->clk)) {
 		clk_unprepare(ctx->clk);
 		clk_put(ctx->clk);
 	}
@@ -209,6 +209,7 @@
 
 	ctx->regs = regs;
 	ctx->val_bytes = config->val_bits / 8;
+	ctx->clk = ERR_PTR(-ENODEV);
 
 	if (clk_id == NULL)
 		return ctx;
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 9c021d9..c2e0021 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1549,7 +1549,7 @@
 						val + (i * val_bytes),
 						val_bytes);
 			if (ret != 0)
-				return ret;
+				goto out;
 		}
 	} else {
 		ret = _regmap_raw_write(map, reg, wval, val_bytes * val_count);
@@ -1743,7 +1743,7 @@
 /**
  * regmap_read(): Read a value from a single register
  *
- * @map: Register map to write to
+ * @map: Register map to read from
  * @reg: Register to be read from
  * @val: Pointer to store read value
  *
@@ -1770,7 +1770,7 @@
 /**
  * regmap_raw_read(): Read raw data from the device
  *
- * @map: Register map to write to
+ * @map: Register map to read from
  * @reg: First register to be read from
  * @val: Pointer to store read value
  * @val_len: Size of data to read
@@ -1882,7 +1882,7 @@
 /**
  * regmap_bulk_read(): Read multiple registers from the device
  *
- * @map: Register map to write to
+ * @map: Register map to read from
  * @reg: First register to be read from
  * @val: Pointer to store read value, in native register size for device
  * @val_count: Number of registers to read
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 16a2aa2..ec4ee5c 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1169,7 +1169,7 @@
 	struct pl08x_txd *txd = to_pl08x_txd(&vd->tx);
 	struct pl08x_dma_chan *plchan = to_pl08x_chan(vd->tx.chan);
 
-	dma_descriptor_unmap(txd);
+	dma_descriptor_unmap(&vd->tx);
 	if (!txd->done)
 		pl08x_release_mux(plchan);
 
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index dcb1e05..8869500 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -1017,6 +1017,7 @@
 		}
 	}
 
+	platform_set_drvdata(op, pdev);
 	dev_info(pdev->device.dev, "initialized %d channels\n", dma_channels);
 	return 0;
 }
diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c
index 4cb1279..4eddedb 100644
--- a/drivers/dma/s3c24xx-dma.c
+++ b/drivers/dma/s3c24xx-dma.c
@@ -628,42 +628,13 @@
 	s3cchan->state = S3C24XX_DMA_CHAN_IDLE;
 }
 
-static void s3c24xx_dma_unmap_buffers(struct s3c24xx_txd *txd)
-{
-	struct device *dev = txd->vd.tx.chan->device->dev;
-	struct s3c24xx_sg *dsg;
-
-	if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		if (txd->vd.tx.flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_single(dev, dsg->src_addr, dsg->len,
-						DMA_TO_DEVICE);
-		else {
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_page(dev, dsg->src_addr, dsg->len,
-						DMA_TO_DEVICE);
-		}
-	}
-
-	if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-		if (txd->vd.tx.flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_single(dev, dsg->dst_addr, dsg->len,
-						DMA_FROM_DEVICE);
-		else
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_page(dev, dsg->dst_addr, dsg->len,
-						DMA_FROM_DEVICE);
-	}
-}
-
 static void s3c24xx_dma_desc_free(struct virt_dma_desc *vd)
 {
 	struct s3c24xx_txd *txd = to_s3c24xx_txd(&vd->tx);
 	struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(vd->tx.chan);
 
 	if (!s3cchan->slave)
-		s3c24xx_dma_unmap_buffers(txd);
+		dma_descriptor_unmap(&vd->tx);
 
 	s3c24xx_dma_free_txd(txd);
 }
@@ -795,7 +766,7 @@
 
 	spin_lock_irqsave(&s3cchan->vc.lock, flags);
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS) {
+	if (ret == DMA_COMPLETE) {
 		spin_unlock_irqrestore(&s3cchan->vc.lock, flags);
 		return ret;
 	}
diff --git a/drivers/dma/sh/rcar-hpbdma.c b/drivers/dma/sh/rcar-hpbdma.c
index ebad845..3083d90 100644
--- a/drivers/dma/sh/rcar-hpbdma.c
+++ b/drivers/dma/sh/rcar-hpbdma.c
@@ -60,6 +60,7 @@
 #define HPB_DMAE_DSTPR_DMSTP	BIT(0)
 
 /* DMA status register (DSTSR) bits */
+#define HPB_DMAE_DSTSR_DQSTS	BIT(2)
 #define HPB_DMAE_DSTSR_DMSTS	BIT(0)
 
 /* DMA common registers */
@@ -286,6 +287,9 @@
 
 	ch_reg_write(chan, HPB_DMAE_DCMDR_DQEND, HPB_DMAE_DCMDR);
 	ch_reg_write(chan, HPB_DMAE_DSTPR_DMSTP, HPB_DMAE_DSTPR);
+
+	chan->plane_idx = 0;
+	chan->first_desc = true;
 }
 
 static const struct hpb_dmae_slave_config *
@@ -385,7 +389,10 @@
 	struct hpb_dmae_chan *chan = to_chan(schan);
 	u32 dstsr = ch_reg_read(chan, HPB_DMAE_DSTSR);
 
-	return (dstsr & HPB_DMAE_DSTSR_DMSTS) == HPB_DMAE_DSTSR_DMSTS;
+	if (chan->xfer_mode == XFER_DOUBLE)
+		return dstsr & HPB_DMAE_DSTSR_DQSTS;
+	else
+		return dstsr & HPB_DMAE_DSTSR_DMSTS;
 }
 
 static int
@@ -510,6 +517,8 @@
 	}
 
 	schan = &new_hpb_chan->shdma_chan;
+	schan->max_xfer_len = HPB_DMA_TCR_MAX;
+
 	shdma_chan_probe(sdev, schan, id);
 
 	if (pdev->id >= 0)
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 8472405..d7f1b57 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -945,7 +945,7 @@
 	u32			tad_offset;
 	u32			rir_way;
 	u32			mb, kb;
-	u64			ch_addr, offset, limit, prv = 0;
+	u64			ch_addr, offset, limit = 0, prv = 0;
 
 
 	/*
diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c
index ecb5ca6..e776963 100644
--- a/drivers/hid/hid-kye.c
+++ b/drivers/hid/hid-kye.c
@@ -341,6 +341,7 @@
 	case USB_DEVICE_ID_GENIUS_GX_IMPERATOR:
 		rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 83,
 					"Genius Gx Imperator Keyboard");
+		break;
 	case USB_DEVICE_ID_GENIUS_MANTICORE:
 		rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 104,
 					"Genius Manticore Keyboard");
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index d87f7cb..8fab828 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -569,6 +569,8 @@
 					goto err_free_names;
 			}
 			sd->hid_sensor_hub_client_devs[
+				sd->hid_sensor_client_cnt].id = PLATFORM_DEVID_AUTO;
+			sd->hid_sensor_hub_client_devs[
 				sd->hid_sensor_client_cnt].name = name;
 			sd->hid_sensor_hub_client_devs[
 				sd->hid_sensor_client_cnt].platform_data =
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 1d7efa3..d0cfbb4 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -312,7 +312,9 @@
 
 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);
 
-	clk_prepare_enable(i2c_imx->clk);
+	result = clk_prepare_enable(i2c_imx->clk);
+	if (result)
+		return result;
 	imx_i2c_write_reg(i2c_imx->ifdr, i2c_imx, IMX_I2C_IFDR);
 	/* Enable I2C controller */
 	imx_i2c_write_reg(i2c_imx->hwdata->i2sr_clr_opcode, i2c_imx, IMX_I2C_I2SR);
diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 797e311..2d0847b 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -139,6 +139,8 @@
 	priv->adap.algo = &priv->algo;
 	priv->adap.algo_data = priv;
 	priv->adap.dev.parent = &parent->dev;
+	priv->adap.retries = parent->retries;
+	priv->adap.timeout = parent->timeout;
 
 	/* Sanity check on class */
 	if (i2c_mux_parent_classes(parent) & class)
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 173cbb2..54bdd923 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -1717,6 +1717,11 @@
 {
 	__u64 mem;
 
+	dm_bufio_allocated_kmem_cache = 0;
+	dm_bufio_allocated_get_free_pages = 0;
+	dm_bufio_allocated_vmalloc = 0;
+	dm_bufio_current_allocated = 0;
+
 	memset(&dm_bufio_caches, 0, sizeof dm_bufio_caches);
 	memset(&dm_bufio_cache_names, 0, sizeof dm_bufio_cache_names);
 
diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index 416b7b7..64780ad 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -730,15 +730,18 @@
 	int r = 0;
 	bool updated = updated_this_tick(mq, e);
 
-	requeue_and_update_tick(mq, e);
-
 	if ((!discarded_oblock && updated) ||
-	    !should_promote(mq, e, discarded_oblock, data_dir))
+	    !should_promote(mq, e, discarded_oblock, data_dir)) {
+		requeue_and_update_tick(mq, e);
 		result->op = POLICY_MISS;
-	else if (!can_migrate)
+
+	} else if (!can_migrate)
 		r = -EWOULDBLOCK;
-	else
+
+	else {
+		requeue_and_update_tick(mq, e);
 		r = pre_cache_to_cache(mq, e, result);
+	}
 
 	return r;
 }
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 9efcf10..1b1469e 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -2755,7 +2755,7 @@
 {
 	int r;
 
-	r = dm_cache_resize(cache->cmd, cache->cache_size);
+	r = dm_cache_resize(cache->cmd, new_size);
 	if (r) {
 		DMERR("could not resize cache metadata");
 		return r;
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 496d5f3..2f91d6d 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -20,6 +20,7 @@
 struct delay_c {
 	struct timer_list delay_timer;
 	struct mutex timer_lock;
+	struct workqueue_struct *kdelayd_wq;
 	struct work_struct flush_expired_bios;
 	struct list_head delayed_bios;
 	atomic_t may_delay;
@@ -45,14 +46,13 @@
 
 static DEFINE_MUTEX(delayed_bios_lock);
 
-static struct workqueue_struct *kdelayd_wq;
 static struct kmem_cache *delayed_cache;
 
 static void handle_delayed_timer(unsigned long data)
 {
 	struct delay_c *dc = (struct delay_c *)data;
 
-	queue_work(kdelayd_wq, &dc->flush_expired_bios);
+	queue_work(dc->kdelayd_wq, &dc->flush_expired_bios);
 }
 
 static void queue_timeout(struct delay_c *dc, unsigned long expires)
@@ -191,6 +191,12 @@
 		goto bad_dev_write;
 	}
 
+	dc->kdelayd_wq = alloc_workqueue("kdelayd", WQ_MEM_RECLAIM, 0);
+	if (!dc->kdelayd_wq) {
+		DMERR("Couldn't start kdelayd");
+		goto bad_queue;
+	}
+
 	setup_timer(&dc->delay_timer, handle_delayed_timer, (unsigned long)dc);
 
 	INIT_WORK(&dc->flush_expired_bios, flush_expired_bios);
@@ -203,6 +209,8 @@
 	ti->private = dc;
 	return 0;
 
+bad_queue:
+	mempool_destroy(dc->delayed_pool);
 bad_dev_write:
 	if (dc->dev_write)
 		dm_put_device(ti, dc->dev_write);
@@ -217,7 +225,7 @@
 {
 	struct delay_c *dc = ti->private;
 
-	flush_workqueue(kdelayd_wq);
+	destroy_workqueue(dc->kdelayd_wq);
 
 	dm_put_device(ti, dc->dev_read);
 
@@ -350,12 +358,6 @@
 {
 	int r = -ENOMEM;
 
-	kdelayd_wq = alloc_workqueue("kdelayd", WQ_MEM_RECLAIM, 0);
-	if (!kdelayd_wq) {
-		DMERR("Couldn't start kdelayd");
-		goto bad_queue;
-	}
-
 	delayed_cache = KMEM_CACHE(dm_delay_info, 0);
 	if (!delayed_cache) {
 		DMERR("Couldn't create delayed bio cache.");
@@ -373,8 +375,6 @@
 bad_register:
 	kmem_cache_destroy(delayed_cache);
 bad_memcache:
-	destroy_workqueue(kdelayd_wq);
-bad_queue:
 	return r;
 }
 
@@ -382,7 +382,6 @@
 {
 	dm_unregister_target(&delay_target);
 	kmem_cache_destroy(delayed_cache);
-	destroy_workqueue(kdelayd_wq);
 }
 
 /* Module hooks */
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index aec57d7..944690b 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -66,6 +66,18 @@
 
 	atomic_t pending_exceptions_count;
 
+	/* Protected by "lock" */
+	sector_t exception_start_sequence;
+
+	/* Protected by kcopyd single-threaded callback */
+	sector_t exception_complete_sequence;
+
+	/*
+	 * A list of pending exceptions that completed out of order.
+	 * Protected by kcopyd single-threaded callback.
+	 */
+	struct list_head out_of_order_list;
+
 	mempool_t *pending_pool;
 
 	struct dm_exception_table pending;
@@ -173,6 +185,14 @@
 	 */
 	int started;
 
+	/* There was copying error. */
+	int copy_error;
+
+	/* A sequence number, it is used for in-order completion. */
+	sector_t exception_sequence;
+
+	struct list_head out_of_order_entry;
+
 	/*
 	 * For writing a complete chunk, bypassing the copy.
 	 */
@@ -1094,6 +1114,9 @@
 	s->valid = 1;
 	s->active = 0;
 	atomic_set(&s->pending_exceptions_count, 0);
+	s->exception_start_sequence = 0;
+	s->exception_complete_sequence = 0;
+	INIT_LIST_HEAD(&s->out_of_order_list);
 	init_rwsem(&s->lock);
 	INIT_LIST_HEAD(&s->list);
 	spin_lock_init(&s->pe_lock);
@@ -1443,6 +1466,19 @@
 	pending_complete(pe, success);
 }
 
+static void complete_exception(struct dm_snap_pending_exception *pe)
+{
+	struct dm_snapshot *s = pe->snap;
+
+	if (unlikely(pe->copy_error))
+		pending_complete(pe, 0);
+
+	else
+		/* Update the metadata if we are persistent */
+		s->store->type->commit_exception(s->store, &pe->e,
+						 commit_callback, pe);
+}
+
 /*
  * Called when the copy I/O has finished.  kcopyd actually runs
  * this code so don't block.
@@ -1452,13 +1488,32 @@
 	struct dm_snap_pending_exception *pe = context;
 	struct dm_snapshot *s = pe->snap;
 
-	if (read_err || write_err)
-		pending_complete(pe, 0);
+	pe->copy_error = read_err || write_err;
 
-	else
-		/* Update the metadata if we are persistent */
-		s->store->type->commit_exception(s->store, &pe->e,
-						 commit_callback, pe);
+	if (pe->exception_sequence == s->exception_complete_sequence) {
+		s->exception_complete_sequence++;
+		complete_exception(pe);
+
+		while (!list_empty(&s->out_of_order_list)) {
+			pe = list_entry(s->out_of_order_list.next,
+					struct dm_snap_pending_exception, out_of_order_entry);
+			if (pe->exception_sequence != s->exception_complete_sequence)
+				break;
+			s->exception_complete_sequence++;
+			list_del(&pe->out_of_order_entry);
+			complete_exception(pe);
+		}
+	} else {
+		struct list_head *lh;
+		struct dm_snap_pending_exception *pe2;
+
+		list_for_each_prev(lh, &s->out_of_order_list) {
+			pe2 = list_entry(lh, struct dm_snap_pending_exception, out_of_order_entry);
+			if (pe2->exception_sequence < pe->exception_sequence)
+				break;
+		}
+		list_add(&pe->out_of_order_entry, lh);
+	}
 }
 
 /*
@@ -1553,6 +1608,8 @@
 		return NULL;
 	}
 
+	pe->exception_sequence = s->exception_start_sequence++;
+
 	dm_insert_exception(&s->pending, &pe->e);
 
 	return pe;
@@ -2192,7 +2249,7 @@
 
 static struct target_type snapshot_target = {
 	.name    = "snapshot",
-	.version = {1, 11, 1},
+	.version = {1, 12, 0},
 	.module  = THIS_MODULE,
 	.ctr     = snapshot_ctr,
 	.dtr     = snapshot_dtr,
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 3d404c1..28a9012 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -964,6 +964,7 @@
 
 int __init dm_statistics_init(void)
 {
+	shared_memory_amount = 0;
 	dm_stat_need_rcu_barrier = 0;
 	return 0;
 }
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 465f08c..3ba6a38 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -200,6 +200,11 @@
 
 	num_targets = dm_round_up(num_targets, KEYS_PER_NODE);
 
+	if (!num_targets) {
+		kfree(t);
+		return -ENOMEM;
+	}
+
 	if (alloc_targets(t, num_targets)) {
 		kfree(t);
 		return -ENOMEM;
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 60bce43..8a30ad5 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -1697,6 +1697,14 @@
 	up_write(&pmd->root_lock);
 }
 
+void dm_pool_metadata_read_write(struct dm_pool_metadata *pmd)
+{
+	down_write(&pmd->root_lock);
+	pmd->read_only = false;
+	dm_bm_set_read_write(pmd->bm);
+	up_write(&pmd->root_lock);
+}
+
 int dm_pool_register_metadata_threshold(struct dm_pool_metadata *pmd,
 					dm_block_t threshold,
 					dm_sm_threshold_fn fn,
diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h
index 845ebbe..7bcc0e1 100644
--- a/drivers/md/dm-thin-metadata.h
+++ b/drivers/md/dm-thin-metadata.h
@@ -193,6 +193,7 @@
  * that nothing is changing.
  */
 void dm_pool_metadata_read_only(struct dm_pool_metadata *pmd);
+void dm_pool_metadata_read_write(struct dm_pool_metadata *pmd);
 
 int dm_pool_register_metadata_threshold(struct dm_pool_metadata *pmd,
 					dm_block_t threshold,
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2c0cf51..ee29037 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -640,7 +640,9 @@
 	 */
 	r = dm_thin_insert_block(tc->td, m->virt_block, m->data_block);
 	if (r) {
-		DMERR_LIMIT("dm_thin_insert_block() failed");
+		DMERR_LIMIT("%s: dm_thin_insert_block() failed: error = %d",
+			    dm_device_name(pool->pool_md), r);
+		set_pool_mode(pool, PM_READ_ONLY);
 		cell_error(pool, m->cell);
 		goto out;
 	}
@@ -881,32 +883,23 @@
 	}
 }
 
-static int commit(struct pool *pool)
-{
-	int r;
-
-	r = dm_pool_commit_metadata(pool->pmd);
-	if (r)
-		DMERR_LIMIT("%s: commit failed: error = %d",
-			    dm_device_name(pool->pool_md), r);
-
-	return r;
-}
-
 /*
  * A non-zero return indicates read_only or fail_io mode.
  * Many callers don't care about the return value.
  */
-static int commit_or_fallback(struct pool *pool)
+static int commit(struct pool *pool)
 {
 	int r;
 
 	if (get_pool_mode(pool) != PM_WRITE)
 		return -EINVAL;
 
-	r = commit(pool);
-	if (r)
+	r = dm_pool_commit_metadata(pool->pmd);
+	if (r) {
+		DMERR_LIMIT("%s: dm_pool_commit_metadata failed: error = %d",
+			    dm_device_name(pool->pool_md), r);
 		set_pool_mode(pool, PM_READ_ONLY);
+	}
 
 	return r;
 }
@@ -943,7 +936,9 @@
 		 * Try to commit to see if that will free up some
 		 * more space.
 		 */
-		(void) commit_or_fallback(pool);
+		r = commit(pool);
+		if (r)
+			return r;
 
 		r = dm_pool_get_free_block_count(pool->pmd, &free_blocks);
 		if (r)
@@ -957,7 +952,7 @@
 		 * table reload).
 		 */
 		if (!free_blocks) {
-			DMWARN("%s: no free space available.",
+			DMWARN("%s: no free data space available.",
 			       dm_device_name(pool->pool_md));
 			spin_lock_irqsave(&pool->lock, flags);
 			pool->no_free_space = 1;
@@ -967,8 +962,16 @@
 	}
 
 	r = dm_pool_alloc_data_block(pool->pmd, result);
-	if (r)
+	if (r) {
+		if (r == -ENOSPC &&
+		    !dm_pool_get_free_metadata_block_count(pool->pmd, &free_blocks) &&
+		    !free_blocks) {
+			DMWARN("%s: no free metadata space available.",
+			       dm_device_name(pool->pool_md));
+			set_pool_mode(pool, PM_READ_ONLY);
+		}
 		return r;
+	}
 
 	return 0;
 }
@@ -1349,7 +1352,7 @@
 	if (bio_list_empty(&bios) && !need_commit_due_to_time(pool))
 		return;
 
-	if (commit_or_fallback(pool)) {
+	if (commit(pool)) {
 		while ((bio = bio_list_pop(&bios)))
 			bio_io_error(bio);
 		return;
@@ -1397,6 +1400,7 @@
 	case PM_FAIL:
 		DMERR("%s: switching pool to failure mode",
 		      dm_device_name(pool->pool_md));
+		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_fail;
 		pool->process_discard = process_bio_fail;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -1421,6 +1425,7 @@
 		break;
 
 	case PM_WRITE:
+		dm_pool_metadata_read_write(pool->pmd);
 		pool->process_bio = process_bio;
 		pool->process_discard = process_discard;
 		pool->process_prepared_mapping = process_prepared_mapping;
@@ -1637,12 +1642,19 @@
 	struct pool_c *pt = ti->private;
 
 	/*
-	 * We want to make sure that degraded pools are never upgraded.
+	 * We want to make sure that a pool in PM_FAIL mode is never upgraded.
 	 */
 	enum pool_mode old_mode = pool->pf.mode;
 	enum pool_mode new_mode = pt->adjusted_pf.mode;
 
-	if (old_mode > new_mode)
+	/*
+	 * If we were in PM_FAIL mode, rollback of metadata failed.  We're
+	 * not going to recover without a thin_repair.  So we never let the
+	 * pool move out of the old mode.  On the other hand a PM_READ_ONLY
+	 * may have been due to a lack of metadata or data space, and may
+	 * now work (ie. if the underlying devices have been resized).
+	 */
+	if (old_mode == PM_FAIL)
 		new_mode = old_mode;
 
 	pool->ti = ti;
@@ -2266,7 +2278,7 @@
 		return r;
 
 	if (need_commit1 || need_commit2)
-		(void) commit_or_fallback(pool);
+		(void) commit(pool);
 
 	return 0;
 }
@@ -2293,7 +2305,7 @@
 
 	cancel_delayed_work(&pool->waker);
 	flush_workqueue(pool->wq);
-	(void) commit_or_fallback(pool);
+	(void) commit(pool);
 }
 
 static int check_arg_count(unsigned argc, unsigned args_required)
@@ -2427,7 +2439,7 @@
 	if (r)
 		return r;
 
-	(void) commit_or_fallback(pool);
+	(void) commit(pool);
 
 	r = dm_pool_reserve_metadata_snap(pool->pmd);
 	if (r)
@@ -2489,7 +2501,7 @@
 		DMWARN("Unrecognised thin pool target message received: %s", argv[0]);
 
 	if (!r)
-		(void) commit_or_fallback(pool);
+		(void) commit(pool);
 
 	return r;
 }
@@ -2544,7 +2556,7 @@
 
 		/* Commit to ensure statistics aren't out-of-date */
 		if (!(status_flags & DM_STATUS_NOFLUSH_FLAG) && !dm_suspended(ti))
-			(void) commit_or_fallback(pool);
+			(void) commit(pool);
 
 		r = dm_pool_get_metadata_transaction_id(pool->pmd, &transaction_id);
 		if (r) {
diff --git a/drivers/md/persistent-data/dm-array.c b/drivers/md/persistent-data/dm-array.c
index af96e24..1d75b1d 100644
--- a/drivers/md/persistent-data/dm-array.c
+++ b/drivers/md/persistent-data/dm-array.c
@@ -317,8 +317,16 @@
 	 * The shadow op will often be a noop.  Only insert if it really
 	 * copied data.
 	 */
-	if (dm_block_location(*block) != b)
+	if (dm_block_location(*block) != b) {
+		/*
+		 * dm_tm_shadow_block will have already decremented the old
+		 * block, but it is still referenced by the btree.  We
+		 * increment to stop the insert decrementing it below zero
+		 * when overwriting the old value.
+		 */
+		dm_tm_inc(info->btree_info.tm, b);
 		r = insert_ablock(info, index, *block, root);
+	}
 
 	return r;
 }
diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c
index a7e8bf2..064a3c2 100644
--- a/drivers/md/persistent-data/dm-block-manager.c
+++ b/drivers/md/persistent-data/dm-block-manager.c
@@ -626,6 +626,12 @@
 }
 EXPORT_SYMBOL_GPL(dm_bm_set_read_only);
 
+void dm_bm_set_read_write(struct dm_block_manager *bm)
+{
+	bm->read_only = false;
+}
+EXPORT_SYMBOL_GPL(dm_bm_set_read_write);
+
 u32 dm_bm_checksum(const void *data, size_t len, u32 init_xor)
 {
 	return crc32c(~(u32) 0, data, len) ^ init_xor;
diff --git a/drivers/md/persistent-data/dm-block-manager.h b/drivers/md/persistent-data/dm-block-manager.h
index 9a82083..13cd58e 100644
--- a/drivers/md/persistent-data/dm-block-manager.h
+++ b/drivers/md/persistent-data/dm-block-manager.h
@@ -108,9 +108,9 @@
 int dm_bm_flush_and_unlock(struct dm_block_manager *bm,
 			   struct dm_block *superblock);
 
- /*
-  * Request data be prefetched into the cache.
-  */
+/*
+ * Request data is prefetched into the cache.
+ */
 void dm_bm_prefetch(struct dm_block_manager *bm, dm_block_t b);
 
 /*
@@ -125,6 +125,7 @@
  * be returned if you do.
  */
 void dm_bm_set_read_only(struct dm_block_manager *bm);
+void dm_bm_set_read_write(struct dm_block_manager *bm);
 
 u32 dm_bm_checksum(const void *data, size_t len, u32 init_xor);
 
diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c
index 6058569..466a60b 100644
--- a/drivers/md/persistent-data/dm-space-map-common.c
+++ b/drivers/md/persistent-data/dm-space-map-common.c
@@ -381,7 +381,7 @@
 }
 
 static int sm_ll_mutate(struct ll_disk *ll, dm_block_t b,
-			uint32_t (*mutator)(void *context, uint32_t old),
+			int (*mutator)(void *context, uint32_t old, uint32_t *new),
 			void *context, enum allocation_event *ev)
 {
 	int r;
@@ -410,11 +410,17 @@
 
 	if (old > 2) {
 		r = sm_ll_lookup_big_ref_count(ll, b, &old);
-		if (r < 0)
+		if (r < 0) {
+			dm_tm_unlock(ll->tm, nb);
 			return r;
+		}
 	}
 
-	ref_count = mutator(context, old);
+	r = mutator(context, old, &ref_count);
+	if (r) {
+		dm_tm_unlock(ll->tm, nb);
+		return r;
+	}
 
 	if (ref_count <= 2) {
 		sm_set_bitmap(bm_le, bit, ref_count);
@@ -465,9 +471,10 @@
 	return ll->save_ie(ll, index, &ie_disk);
 }
 
-static uint32_t set_ref_count(void *context, uint32_t old)
+static int set_ref_count(void *context, uint32_t old, uint32_t *new)
 {
-	return *((uint32_t *) context);
+	*new = *((uint32_t *) context);
+	return 0;
 }
 
 int sm_ll_insert(struct ll_disk *ll, dm_block_t b,
@@ -476,9 +483,10 @@
 	return sm_ll_mutate(ll, b, set_ref_count, &ref_count, ev);
 }
 
-static uint32_t inc_ref_count(void *context, uint32_t old)
+static int inc_ref_count(void *context, uint32_t old, uint32_t *new)
 {
-	return old + 1;
+	*new = old + 1;
+	return 0;
 }
 
 int sm_ll_inc(struct ll_disk *ll, dm_block_t b, enum allocation_event *ev)
@@ -486,9 +494,15 @@
 	return sm_ll_mutate(ll, b, inc_ref_count, NULL, ev);
 }
 
-static uint32_t dec_ref_count(void *context, uint32_t old)
+static int dec_ref_count(void *context, uint32_t old, uint32_t *new)
 {
-	return old - 1;
+	if (!old) {
+		DMERR_LIMIT("unable to decrement a reference count below 0");
+		return -EINVAL;
+	}
+
+	*new = old - 1;
+	return 0;
 }
 
 int sm_ll_dec(struct ll_disk *ll, dm_block_t b, enum allocation_event *ev)
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 1c95968..58fc1ee 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -384,12 +384,16 @@
 	struct sm_metadata *smm = container_of(sm, struct sm_metadata, sm);
 
 	int r = sm_metadata_new_block_(sm, b);
-	if (r)
+	if (r) {
 		DMERR("unable to allocate new metadata block");
+		return r;
+	}
 
 	r = sm_metadata_get_nr_free(sm, &count);
-	if (r)
+	if (r) {
 		DMERR("couldn't get free block count");
+		return r;
+	}
 
 	check_threshold(&smm->threshold, count);
 
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index 34c18fb..54cc255 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -81,31 +81,31 @@
 
 int sec_reg_read(struct sec_pmic_dev *sec_pmic, u8 reg, void *dest)
 {
-	return regmap_read(sec_pmic->regmap, reg, dest);
+	return regmap_read(sec_pmic->regmap_pmic, reg, dest);
 }
 EXPORT_SYMBOL_GPL(sec_reg_read);
 
 int sec_bulk_read(struct sec_pmic_dev *sec_pmic, u8 reg, int count, u8 *buf)
 {
-	return regmap_bulk_read(sec_pmic->regmap, reg, buf, count);
+	return regmap_bulk_read(sec_pmic->regmap_pmic, reg, buf, count);
 }
 EXPORT_SYMBOL_GPL(sec_bulk_read);
 
 int sec_reg_write(struct sec_pmic_dev *sec_pmic, u8 reg, u8 value)
 {
-	return regmap_write(sec_pmic->regmap, reg, value);
+	return regmap_write(sec_pmic->regmap_pmic, reg, value);
 }
 EXPORT_SYMBOL_GPL(sec_reg_write);
 
 int sec_bulk_write(struct sec_pmic_dev *sec_pmic, u8 reg, int count, u8 *buf)
 {
-	return regmap_raw_write(sec_pmic->regmap, reg, buf, count);
+	return regmap_raw_write(sec_pmic->regmap_pmic, reg, buf, count);
 }
 EXPORT_SYMBOL_GPL(sec_bulk_write);
 
 int sec_reg_update(struct sec_pmic_dev *sec_pmic, u8 reg, u8 val, u8 mask)
 {
-	return regmap_update_bits(sec_pmic->regmap, reg, mask, val);
+	return regmap_update_bits(sec_pmic->regmap_pmic, reg, mask, val);
 }
 EXPORT_SYMBOL_GPL(sec_reg_update);
 
@@ -166,6 +166,11 @@
 	.cache_type = REGCACHE_FLAT,
 };
 
+static const struct regmap_config sec_rtc_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
 #ifdef CONFIG_OF
 /*
  * Only the common platform data elements for s5m8767 are parsed here from the
@@ -266,9 +271,9 @@
 		break;
 	}
 
-	sec_pmic->regmap = devm_regmap_init_i2c(i2c, regmap);
-	if (IS_ERR(sec_pmic->regmap)) {
-		ret = PTR_ERR(sec_pmic->regmap);
+	sec_pmic->regmap_pmic = devm_regmap_init_i2c(i2c, regmap);
+	if (IS_ERR(sec_pmic->regmap_pmic)) {
+		ret = PTR_ERR(sec_pmic->regmap_pmic);
 		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
 			ret);
 		return ret;
@@ -277,6 +282,15 @@
 	sec_pmic->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
 	i2c_set_clientdata(sec_pmic->rtc, sec_pmic);
 
+	sec_pmic->regmap_rtc = devm_regmap_init_i2c(sec_pmic->rtc,
+			&sec_rtc_regmap_config);
+	if (IS_ERR(sec_pmic->regmap_rtc)) {
+		ret = PTR_ERR(sec_pmic->regmap_rtc);
+		dev_err(&i2c->dev, "Failed to allocate RTC register map: %d\n",
+			ret);
+		return ret;
+	}
+
 	if (pdata && pdata->cfg_pmic_irq)
 		pdata->cfg_pmic_irq();
 
diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c
index 0dd84e9..b441b1b 100644
--- a/drivers/mfd/sec-irq.c
+++ b/drivers/mfd/sec-irq.c
@@ -280,19 +280,19 @@
 
 	switch (type) {
 	case S5M8763X:
-		ret = regmap_add_irq_chip(sec_pmic->regmap, sec_pmic->irq,
+		ret = regmap_add_irq_chip(sec_pmic->regmap_pmic, sec_pmic->irq,
 				  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				  sec_pmic->irq_base, &s5m8763_irq_chip,
 				  &sec_pmic->irq_data);
 		break;
 	case S5M8767X:
-		ret = regmap_add_irq_chip(sec_pmic->regmap, sec_pmic->irq,
+		ret = regmap_add_irq_chip(sec_pmic->regmap_pmic, sec_pmic->irq,
 				  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				  sec_pmic->irq_base, &s5m8767_irq_chip,
 				  &sec_pmic->irq_data);
 		break;
 	case S2MPS11X:
-		ret = regmap_add_irq_chip(sec_pmic->regmap, sec_pmic->irq,
+		ret = regmap_add_irq_chip(sec_pmic->regmap_pmic, sec_pmic->irq,
 				  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				  sec_pmic->irq_base, &s2mps11_irq_chip,
 				  &sec_pmic->irq_data);
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 4cabdc9..4b3aaa8 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -962,7 +962,7 @@
 static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
 {
 	struct platform_device *pdev = info->pdev;
-	if (use_dma) {
+	if (info->use_dma) {
 		pxa_free_dma(info->data_dma_ch);
 		dma_free_coherent(&pdev->dev, info->buf_size,
 				  info->data_buff, info->data_buff_phys);
@@ -1259,10 +1259,6 @@
 		.compatible = "marvell,pxa3xx-nand",
 		.data       = (void *)PXA3XX_NAND_VARIANT_PXA,
 	},
-	{
-		.compatible = "marvell,armada370-nand",
-		.data       = (void *)PXA3XX_NAND_VARIANT_ARMADA370,
-	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, pxa3xx_nand_dt_ids);
diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index 5917fe3..b9f1d24 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -590,8 +590,8 @@
 	default:
 		return -EINVAL;
 	}
+	ret <<= ffs(mask) - 1;
 	val = ret & mask;
-	val <<= ffs(mask) - 1;
 	return as3722_update_bits(as3722, reg, mask, val);
 }
 
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 3fe1313..d85f313 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -119,6 +119,11 @@
 		return "";
 }
 
+static bool have_full_constraints(void)
+{
+	return has_full_constraints || of_have_populated_dt();
+}
+
 /**
  * of_get_regulator - get a regulator device node based on supply name
  * @dev: Device pointer for the consumer (of regulator) device
@@ -1340,7 +1345,7 @@
 	 * Assume that a regulator is physically present and enabled
 	 * even if it isn't hooked up and just provide a dummy.
 	 */
-	if (has_full_constraints && allow_dummy) {
+	if (have_full_constraints() && allow_dummy) {
 		pr_warn("%s supply %s not found, using dummy regulator\n",
 			devname, id);
 
@@ -3627,7 +3632,7 @@
 			if (error)
 				ret = error;
 		} else {
-			if (!has_full_constraints)
+			if (!have_full_constraints())
 				goto unlock;
 			if (!ops->disable)
 				goto unlock;
@@ -3825,7 +3830,7 @@
 		if (!enabled)
 			goto unlock;
 
-		if (has_full_constraints) {
+		if (have_full_constraints()) {
 			/* We log since this may kill the system if it
 			 * goes wrong. */
 			rdev_info(rdev, "disabling\n");
diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c
index 032df37..8b5e4c7 100644
--- a/drivers/regulator/pfuze100-regulator.c
+++ b/drivers/regulator/pfuze100-regulator.c
@@ -38,7 +38,7 @@
 
 #define PFUZE100_DEVICEID	0x0
 #define PFUZE100_REVID		0x3
-#define PFUZE100_FABID		0x3
+#define PFUZE100_FABID		0x4
 
 #define PFUZE100_SW1ABVOL	0x20
 #define PFUZE100_SW1CVOL	0x2e
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index cbf91e2..aeb40aa 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -925,7 +925,7 @@
 		config.dev = s5m8767->dev;
 		config.init_data = pdata->regulators[i].initdata;
 		config.driver_data = s5m8767;
-		config.regmap = iodev->regmap;
+		config.regmap = iodev->regmap_pmic;
 		config.of_node = pdata->regulators[i].reg_node;
 
 		rdev[i] = devm_regulator_register(&pdev->dev, &regulators[id],
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index c0da95e..3281c90 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -220,6 +220,8 @@
 
 	at91_alarm_year = tm.tm_year;
 
+	tm.tm_mon = alrm->time.tm_mon;
+	tm.tm_mday = alrm->time.tm_mday;
 	tm.tm_hour = alrm->time.tm_hour;
 	tm.tm_min = alrm->time.tm_min;
 	tm.tm_sec = alrm->time.tm_sec;
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index b7fd02b..ae8119d 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -28,10 +28,20 @@
 #include <linux/mfd/samsung/irq.h>
 #include <linux/mfd/samsung/rtc.h>
 
+/*
+ * Maximum number of retries for checking changes in UDR field
+ * of SEC_RTC_UDR_CON register (to limit possible endless loop).
+ *
+ * After writing to RTC registers (setting time or alarm) read the UDR field
+ * in SEC_RTC_UDR_CON register. UDR is auto-cleared when data have
+ * been transferred.
+ */
+#define UDR_READ_RETRY_CNT	5
+
 struct s5m_rtc_info {
 	struct device *dev;
 	struct sec_pmic_dev *s5m87xx;
-	struct regmap *rtc;
+	struct regmap *regmap;
 	struct rtc_device *rtc_dev;
 	int irq;
 	int device_type;
@@ -84,12 +94,31 @@
 	}
 }
 
+/*
+ * Read RTC_UDR_CON register and wait till UDR field is cleared.
+ * This indicates that time/alarm update ended.
+ */
+static inline int s5m8767_wait_for_udr_update(struct s5m_rtc_info *info)
+{
+	int ret, retry = UDR_READ_RETRY_CNT;
+	unsigned int data;
+
+	do {
+		ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data);
+	} while (--retry && (data & RTC_UDR_MASK) && !ret);
+
+	if (!retry)
+		dev_err(info->dev, "waiting for UDR update, reached max number of retries\n");
+
+	return ret;
+}
+
 static inline int s5m8767_rtc_set_time_reg(struct s5m_rtc_info *info)
 {
 	int ret;
 	unsigned int data;
 
-	ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
+	ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data);
 	if (ret < 0) {
 		dev_err(info->dev, "failed to read update reg(%d)\n", ret);
 		return ret;
@@ -98,15 +127,13 @@
 	data |= RTC_TIME_EN_MASK;
 	data |= RTC_UDR_MASK;
 
-	ret = regmap_write(info->rtc, SEC_RTC_UDR_CON, data);
+	ret = regmap_write(info->regmap, SEC_RTC_UDR_CON, data);
 	if (ret < 0) {
 		dev_err(info->dev, "failed to write update reg(%d)\n", ret);
 		return ret;
 	}
 
-	do {
-		ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
-	} while ((data & RTC_UDR_MASK) && !ret);
+	ret = s5m8767_wait_for_udr_update(info);
 
 	return ret;
 }
@@ -116,7 +143,7 @@
 	int ret;
 	unsigned int data;
 
-	ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
+	ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data);
 	if (ret < 0) {
 		dev_err(info->dev, "%s: fail to read update reg(%d)\n",
 			__func__, ret);
@@ -126,16 +153,14 @@
 	data &= ~RTC_TIME_EN_MASK;
 	data |= RTC_UDR_MASK;
 
-	ret = regmap_write(info->rtc, SEC_RTC_UDR_CON, data);
+	ret = regmap_write(info->regmap, SEC_RTC_UDR_CON, data);
 	if (ret < 0) {
 		dev_err(info->dev, "%s: fail to write update reg(%d)\n",
 			__func__, ret);
 		return ret;
 	}
 
-	do {
-		ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
-	} while ((data & RTC_UDR_MASK) && !ret);
+	ret = s5m8767_wait_for_udr_update(info);
 
 	return ret;
 }
@@ -178,7 +203,7 @@
 	u8 data[8];
 	int ret;
 
-	ret = regmap_bulk_read(info->rtc, SEC_RTC_SEC, data, 8);
+	ret = regmap_bulk_read(info->regmap, SEC_RTC_SEC, data, 8);
 	if (ret < 0)
 		return ret;
 
@@ -226,7 +251,7 @@
 		1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday,
 		tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_wday);
 
-	ret = regmap_raw_write(info->rtc, SEC_RTC_SEC, data, 8);
+	ret = regmap_raw_write(info->regmap, SEC_RTC_SEC, data, 8);
 	if (ret < 0)
 		return ret;
 
@@ -242,20 +267,20 @@
 	unsigned int val;
 	int ret, i;
 
-	ret = regmap_bulk_read(info->rtc, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8);
 	if (ret < 0)
 		return ret;
 
 	switch (info->device_type) {
 	case S5M8763X:
 		s5m8763_data_to_tm(data, &alrm->time);
-		ret = regmap_read(info->rtc, SEC_ALARM0_CONF, &val);
+		ret = regmap_read(info->regmap, SEC_ALARM0_CONF, &val);
 		if (ret < 0)
 			return ret;
 
 		alrm->enabled = !!val;
 
-		ret = regmap_read(info->rtc, SEC_RTC_STATUS, &val);
+		ret = regmap_read(info->regmap, SEC_RTC_STATUS, &val);
 		if (ret < 0)
 			return ret;
 
@@ -278,7 +303,7 @@
 		}
 
 		alrm->pending = 0;
-		ret = regmap_read(info->rtc, SEC_RTC_STATUS, &val);
+		ret = regmap_read(info->regmap, SEC_RTC_STATUS, &val);
 		if (ret < 0)
 			return ret;
 		break;
@@ -301,7 +326,7 @@
 	int ret, i;
 	struct rtc_time tm;
 
-	ret = regmap_bulk_read(info->rtc, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8);
 	if (ret < 0)
 		return ret;
 
@@ -312,14 +337,14 @@
 
 	switch (info->device_type) {
 	case S5M8763X:
-		ret = regmap_write(info->rtc, SEC_ALARM0_CONF, 0);
+		ret = regmap_write(info->regmap, SEC_ALARM0_CONF, 0);
 		break;
 
 	case S5M8767X:
 		for (i = 0; i < 7; i++)
 			data[i] &= ~ALARM_ENABLE_MASK;
 
-		ret = regmap_raw_write(info->rtc, SEC_ALARM0_SEC, data, 8);
+		ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8);
 		if (ret < 0)
 			return ret;
 
@@ -341,7 +366,7 @@
 	u8 alarm0_conf;
 	struct rtc_time tm;
 
-	ret = regmap_bulk_read(info->rtc, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8);
 	if (ret < 0)
 		return ret;
 
@@ -353,7 +378,7 @@
 	switch (info->device_type) {
 	case S5M8763X:
 		alarm0_conf = 0x77;
-		ret = regmap_write(info->rtc, SEC_ALARM0_CONF, alarm0_conf);
+		ret = regmap_write(info->regmap, SEC_ALARM0_CONF, alarm0_conf);
 		break;
 
 	case S5M8767X:
@@ -368,7 +393,7 @@
 		if (data[RTC_YEAR1] & 0x7f)
 			data[RTC_YEAR1] |= ALARM_ENABLE_MASK;
 
-		ret = regmap_raw_write(info->rtc, SEC_ALARM0_SEC, data, 8);
+		ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8);
 		if (ret < 0)
 			return ret;
 		ret = s5m8767_rtc_set_alarm_reg(info);
@@ -410,7 +435,7 @@
 	if (ret < 0)
 		return ret;
 
-	ret = regmap_raw_write(info->rtc, SEC_ALARM0_SEC, data, 8);
+	ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8);
 	if (ret < 0)
 		return ret;
 
@@ -455,7 +480,7 @@
 static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable)
 {
 	int ret;
-	ret = regmap_update_bits(info->rtc, SEC_WTSR_SMPL_CNTL,
+	ret = regmap_update_bits(info->regmap, SEC_WTSR_SMPL_CNTL,
 				 WTSR_ENABLE_MASK,
 				 enable ? WTSR_ENABLE_MASK : 0);
 	if (ret < 0)
@@ -466,7 +491,7 @@
 static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable)
 {
 	int ret;
-	ret = regmap_update_bits(info->rtc, SEC_WTSR_SMPL_CNTL,
+	ret = regmap_update_bits(info->regmap, SEC_WTSR_SMPL_CNTL,
 				 SMPL_ENABLE_MASK,
 				 enable ? SMPL_ENABLE_MASK : 0);
 	if (ret < 0)
@@ -481,7 +506,7 @@
 	int ret;
 	struct rtc_time tm;
 
-	ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &tp_read);
+	ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &tp_read);
 	if (ret < 0) {
 		dev_err(info->dev, "%s: fail to read control reg(%d)\n",
 			__func__, ret);
@@ -493,7 +518,7 @@
 	data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
 
 	info->rtc_24hr_mode = 1;
-	ret = regmap_raw_write(info->rtc, SEC_ALARM0_CONF, data, 2);
+	ret = regmap_raw_write(info->regmap, SEC_ALARM0_CONF, data, 2);
 	if (ret < 0) {
 		dev_err(info->dev, "%s: fail to write controlm reg(%d)\n",
 			__func__, ret);
@@ -515,7 +540,7 @@
 		ret = s5m_rtc_set_time(info->dev, &tm);
 	}
 
-	ret = regmap_update_bits(info->rtc, SEC_RTC_UDR_CON,
+	ret = regmap_update_bits(info->regmap, SEC_RTC_UDR_CON,
 				 RTC_TCON_MASK, tp_read | RTC_TCON_MASK);
 	if (ret < 0)
 		dev_err(info->dev, "%s: fail to update TCON reg(%d)\n",
@@ -542,17 +567,19 @@
 
 	info->dev = &pdev->dev;
 	info->s5m87xx = s5m87xx;
-	info->rtc = s5m87xx->rtc;
+	info->regmap = s5m87xx->regmap_rtc;
 	info->device_type = s5m87xx->device_type;
 	info->wtsr_smpl = s5m87xx->wtsr_smpl;
 
 	switch (pdata->device_type) {
 	case S5M8763X:
-		info->irq = s5m87xx->irq_base + S5M8763_IRQ_ALARM0;
+		info->irq = regmap_irq_get_virq(s5m87xx->irq_data,
+				S5M8763_IRQ_ALARM0);
 		break;
 
 	case S5M8767X:
-		info->irq = s5m87xx->irq_base + S5M8767_IRQ_RTCA1;
+		info->irq = regmap_irq_get_virq(s5m87xx->irq_data,
+				S5M8767_IRQ_RTCA1);
 		break;
 
 	default:
@@ -596,7 +623,7 @@
 	if (info->wtsr_smpl) {
 		for (i = 0; i < 3; i++) {
 			s5m_rtc_enable_wtsr(info, false);
-			regmap_read(info->rtc, SEC_WTSR_SMPL_CNTL, &val);
+			regmap_read(info->regmap, SEC_WTSR_SMPL_CNTL, &val);
 			pr_debug("%s: WTSR_SMPL reg(0x%02x)\n", __func__, val);
 			if (val & WTSR_ENABLE_MASK)
 				pr_emerg("%s: fail to disable WTSR\n",
@@ -612,6 +639,30 @@
 	s5m_rtc_enable_smpl(info, false);
 }
 
+static int s5m_rtc_resume(struct device *dev)
+{
+	struct s5m_rtc_info *info = dev_get_drvdata(dev);
+	int ret = 0;
+
+	if (device_may_wakeup(dev))
+		ret = disable_irq_wake(info->irq);
+
+	return ret;
+}
+
+static int s5m_rtc_suspend(struct device *dev)
+{
+	struct s5m_rtc_info *info = dev_get_drvdata(dev);
+	int ret = 0;
+
+	if (device_may_wakeup(dev))
+		ret = enable_irq_wake(info->irq);
+
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume);
+
 static const struct platform_device_id s5m_rtc_id[] = {
 	{ "s5m-rtc", 0 },
 };
@@ -620,6 +671,7 @@
 	.driver		= {
 		.name	= "s5m-rtc",
 		.owner	= THIS_MODULE,
+		.pm	= &s5m_rtc_pm_ops,
 	},
 	.probe		= s5m_rtc_probe,
 	.shutdown	= s5m_rtc_shutdown,
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 28955d4..124fc43 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -292,16 +292,20 @@
 {
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	unsigned long rv = -EIO;
-	unsigned long (*get_area)(struct file *, unsigned long, unsigned long,
-				  unsigned long, unsigned long) = NULL;
+
 	if (use_pde(pde)) {
+		typeof(proc_reg_get_unmapped_area) *get_area;
+
+		get_area = pde->proc_fops->get_unmapped_area;
 #ifdef CONFIG_MMU
-		get_area = current->mm->get_unmapped_area;
+		if (!get_area)
+			get_area = current->mm->get_unmapped_area;
 #endif
-		if (pde->proc_fops->get_unmapped_area)
-			get_area = pde->proc_fops->get_unmapped_area;
+
 		if (get_area)
 			rv = get_area(file, orig_addr, len, pgoff, flags);
+		else
+			rv = orig_addr;
 		unuse_pde(pde);
 	}
 	return rv;
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 9649ff0..bd7e987 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -142,7 +142,10 @@
 	return 0;
 }
 
-#define isolate_huge_page(p, l) false
+static inline bool isolate_huge_page(struct page *page, struct list_head *list)
+{
+	return false;
+}
 #define putback_active_hugepage(p)	do {} while (0)
 #define is_hugepage_active(x)	false
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index d4e98d1..ecb8754 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -193,7 +193,8 @@
 		(__x < 0) ? -__x : __x;		\
 	})
 
-#if defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_DEBUG_ATOMIC_SLEEP)
+#if defined(CONFIG_MMU) && \
+	(defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_DEBUG_ATOMIC_SLEEP))
 void might_fault(void);
 #else
 static inline void might_fault(void) { }
diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index 2d0c907..cab2dd2 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -39,7 +39,8 @@
 struct sec_pmic_dev {
 	struct device *dev;
 	struct sec_platform_data *pdata;
-	struct regmap *regmap;
+	struct regmap *regmap_pmic;
+	struct regmap *regmap_rtc;
 	struct i2c_client *i2c;
 	struct i2c_client *rtc;
 
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index bccd5a6..33a5dc4 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1481,8 +1481,18 @@
 		pmd = pmdp_get_and_clear(mm, old_addr, old_pmd);
 		VM_BUG_ON(!pmd_none(*new_pmd));
 		set_pmd_at(mm, new_addr, new_pmd, pmd_mksoft_dirty(pmd));
-		if (new_ptl != old_ptl)
+		if (new_ptl != old_ptl) {
+			pgtable_t pgtable;
+
+			/*
+			 * Move preallocated PTE page table if new_pmd is on
+			 * different PMD page table.
+			 */
+			pgtable = pgtable_trans_huge_withdraw(mm, old_pmd);
+			pgtable_trans_huge_deposit(mm, new_pmd, pgtable);
+
 			spin_unlock(new_ptl);
+		}
 		spin_unlock(old_ptl);
 	}
 out:
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index f1a0ae6..bf5e894 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2694,7 +2694,10 @@
 		goto bypass;
 
 	if (unlikely(task_in_memcg_oom(current)))
-		goto bypass;
+		goto nomem;
+
+	if (gfp_mask & __GFP_NOFAIL)
+		oom = false;
 
 	/*
 	 * We always charge the cgroup the mm_struct belongs to.
@@ -6352,6 +6355,42 @@
 static void mem_cgroup_css_free(struct cgroup_subsys_state *css)
 {
 	struct mem_cgroup *memcg = mem_cgroup_from_css(css);
+	/*
+	 * XXX: css_offline() would be where we should reparent all
+	 * memory to prepare the cgroup for destruction.  However,
+	 * memcg does not do css_tryget() and res_counter charging
+	 * under the same RCU lock region, which means that charging
+	 * could race with offlining.  Offlining only happens to
+	 * cgroups with no tasks in them but charges can show up
+	 * without any tasks from the swapin path when the target
+	 * memcg is looked up from the swapout record and not from the
+	 * current task as it usually is.  A race like this can leak
+	 * charges and put pages with stale cgroup pointers into
+	 * circulation:
+	 *
+	 * #0                        #1
+	 *                           lookup_swap_cgroup_id()
+	 *                           rcu_read_lock()
+	 *                           mem_cgroup_lookup()
+	 *                           css_tryget()
+	 *                           rcu_read_unlock()
+	 * disable css_tryget()
+	 * call_rcu()
+	 *   offline_css()
+	 *     reparent_charges()
+	 *                           res_counter_charge()
+	 *                           css_put()
+	 *                             css_free()
+	 *                           pc->mem_cgroup = dead memcg
+	 *                           add page to lru
+	 *
+	 * The bulk of the charges are still moved in offline_css() to
+	 * avoid pinning a lot of pages in case a long-term reference
+	 * like a swapout record is deferring the css_free() to long
+	 * after offlining.  But this makes sure we catch any charges
+	 * made after offlining:
+	 */
+	mem_cgroup_reparent_charges(memcg);
 
 	memcg_destroy_kmem(memcg);
 	__mem_cgroup_free(memcg);
diff --git a/scripts/sortextable.c b/scripts/sortextable.c
index 5f7a8b6..7941fbd 100644
--- a/scripts/sortextable.c
+++ b/scripts/sortextable.c
@@ -31,6 +31,10 @@
 #include <tools/be_byteshift.h>
 #include <tools/le_byteshift.h>
 
+#ifndef EM_ARCOMPACT
+#define EM_ARCOMPACT	93
+#endif
+
 #ifndef EM_AARCH64
 #define EM_AARCH64	183
 #endif
@@ -268,6 +272,7 @@
 	case EM_S390:
 		custom_sort = sort_relative_table;
 		break;
+	case EM_ARCOMPACT:
 	case EM_ARM:
 	case EM_AARCH64:
 	case EM_MIPS:
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index bff7791..419491d 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -96,10 +96,6 @@
 #include "audit.h"
 #include "avc_ss.h"
 
-#define SB_TYPE_FMT "%s%s%s"
-#define SB_SUBTYPE(sb) (sb->s_subtype && sb->s_subtype[0])
-#define SB_TYPE_ARGS(sb) sb->s_type->name, SB_SUBTYPE(sb) ? "." : "", SB_SUBTYPE(sb) ? sb->s_subtype : ""
-
 extern struct security_operations *security_ops;
 
 /* SECMARK reference count */
@@ -414,8 +410,8 @@
 		   the first boot of the SELinux kernel before we have
 		   assigned xattr values to the filesystem. */
 		if (!root_inode->i_op->getxattr) {
-			printk(KERN_WARNING "SELinux: (dev %s, type "SB_TYPE_FMT") has no "
-			       "xattr support\n", sb->s_id, SB_TYPE_ARGS(sb));
+			printk(KERN_WARNING "SELinux: (dev %s, type %s) has no "
+			       "xattr support\n", sb->s_id, sb->s_type->name);
 			rc = -EOPNOTSUPP;
 			goto out;
 		}
@@ -423,22 +419,22 @@
 		if (rc < 0 && rc != -ENODATA) {
 			if (rc == -EOPNOTSUPP)
 				printk(KERN_WARNING "SELinux: (dev %s, type "
-				       SB_TYPE_FMT") has no security xattr handler\n",
-				       sb->s_id, SB_TYPE_ARGS(sb));
+				       "%s) has no security xattr handler\n",
+				       sb->s_id, sb->s_type->name);
 			else
 				printk(KERN_WARNING "SELinux: (dev %s, type "
-				       SB_TYPE_FMT") getxattr errno %d\n", sb->s_id,
-				       SB_TYPE_ARGS(sb), -rc);
+				       "%s) getxattr errno %d\n", sb->s_id,
+				       sb->s_type->name, -rc);
 			goto out;
 		}
 	}
 
 	if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
-		printk(KERN_ERR "SELinux: initialized (dev %s, type "SB_TYPE_FMT"), unknown behavior\n",
-		       sb->s_id, SB_TYPE_ARGS(sb));
+		printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n",
+		       sb->s_id, sb->s_type->name);
 	else
-		printk(KERN_DEBUG "SELinux: initialized (dev %s, type "SB_TYPE_FMT"), %s\n",
-		       sb->s_id, SB_TYPE_ARGS(sb),
+		printk(KERN_DEBUG "SELinux: initialized (dev %s, type %s), %s\n",
+		       sb->s_id, sb->s_type->name,
 		       labeling_behaviors[sbsec->behavior-1]);
 
 	sbsec->flags |= SE_SBINITIALIZED;
@@ -601,6 +597,7 @@
 	const struct cred *cred = current_cred();
 	int rc = 0, i;
 	struct superblock_security_struct *sbsec = sb->s_security;
+	const char *name = sb->s_type->name;
 	struct inode *inode = sbsec->sb->s_root->d_inode;
 	struct inode_security_struct *root_isec = inode->i_security;
 	u32 fscontext_sid = 0, context_sid = 0, rootcontext_sid = 0;
@@ -659,8 +656,8 @@
 					     strlen(mount_options[i]), &sid);
 		if (rc) {
 			printk(KERN_WARNING "SELinux: security_context_to_sid"
-			       "(%s) failed for (dev %s, type "SB_TYPE_FMT") errno=%d\n",
-			       mount_options[i], sb->s_id, SB_TYPE_ARGS(sb), rc);
+			       "(%s) failed for (dev %s, type %s) errno=%d\n",
+			       mount_options[i], sb->s_id, name, rc);
 			goto out;
 		}
 		switch (flags[i]) {
@@ -807,8 +804,7 @@
 out_double_mount:
 	rc = -EINVAL;
 	printk(KERN_WARNING "SELinux: mount invalid.  Same superblock, different "
-	       "security settings for (dev %s, type "SB_TYPE_FMT")\n", sb->s_id,
-	       SB_TYPE_ARGS(sb));
+	       "security settings for (dev %s, type %s)\n", sb->s_id, name);
 	goto out;
 }
 
@@ -2481,8 +2477,8 @@
 		rc = security_context_to_sid(mount_options[i], len, &sid);
 		if (rc) {
 			printk(KERN_WARNING "SELinux: security_context_to_sid"
-			       "(%s) failed for (dev %s, type "SB_TYPE_FMT") errno=%d\n",
-			       mount_options[i], sb->s_id, SB_TYPE_ARGS(sb), rc);
+			       "(%s) failed for (dev %s, type %s) errno=%d\n",
+			       mount_options[i], sb->s_id, sb->s_type->name, rc);
 			goto out_free_opts;
 		}
 		rc = -EINVAL;
@@ -2520,8 +2516,8 @@
 	return rc;
 out_bad_option:
 	printk(KERN_WARNING "SELinux: unable to change security options "
-	       "during remount (dev %s, type "SB_TYPE_FMT")\n", sb->s_id,
-	       SB_TYPE_ARGS(sb));
+	       "during remount (dev %s, type=%s)\n", sb->s_id,
+	       sb->s_type->name);
 	goto out_free_opts;
 }
 
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index ee470a0..d106733 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2334,50 +2334,16 @@
 	struct ocontext *c;
 	struct superblock_security_struct *sbsec = sb->s_security;
 	const char *fstype = sb->s_type->name;
-	const char *subtype = (sb->s_subtype && sb->s_subtype[0]) ? sb->s_subtype : NULL;
-	struct ocontext *base = NULL;
 
 	read_lock(&policy_rwlock);
 
-	for (c = policydb.ocontexts[OCON_FSUSE]; c; c = c->next) {
-		char *sub;
-		int baselen;
-
-		baselen = strlen(fstype);
-
-		/* if base does not match, this is not the one */
-		if (strncmp(fstype, c->u.name, baselen))
-			continue;
-
-		/* if there is no subtype, this is the one! */
-		if (!subtype)
+	c = policydb.ocontexts[OCON_FSUSE];
+	while (c) {
+		if (strcmp(fstype, c->u.name) == 0)
 			break;
-
-		/* skip past the base in this entry */
-		sub = c->u.name + baselen;
-
-		/* entry is only a base. save it. keep looking for subtype */
-		if (sub[0] == '\0') {
-			base = c;
-			continue;
-		}
-
-		/* entry is not followed by a subtype, so it is not a match */
-		if (sub[0] != '.')
-			continue;
-
-		/* whew, we found a subtype of this fstype */
-		sub++; /* move past '.' */
-
-		/* exact match of fstype AND subtype */
-		if (!strcmp(subtype, sub))
-			break;
+		c = c->next;
 	}
 
-	/* in case we had found an fstype match but no subtype match */
-	if (!c)
-		c = base;
-
 	if (c) {
 		sbsec->behavior = c->v.behavior;
 		if (!c->sid[0]) {