Merge branch 'akpm' (patches from Andrew)

Merge third patch-bomb from Andrew Morton:

 - even more of the rest of MM

 - lib/ updates

 - checkpatch updates

 - small changes to a few scruffy filesystems

 - kmod fixes/cleanups

 - kexec updates

 - a dma-mapping cleanup series from hch

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (81 commits)
  dma-mapping: consolidate dma_set_mask
  dma-mapping: consolidate dma_supported
  dma-mapping: cosolidate dma_mapping_error
  dma-mapping: consolidate dma_{alloc,free}_noncoherent
  dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent}
  mm: use vma_is_anonymous() in create_huge_pmd() and wp_huge_pmd()
  mm: make sure all file VMAs have ->vm_ops set
  mm, mpx: add "vm_flags_t vm_flags" arg to do_mmap_pgoff()
  mm: mark most vm_operations_struct const
  namei: fix warning while make xmldocs caused by namei.c
  ipc: convert invalid scenarios to use WARN_ON
  zlib_deflate/deftree: remove bi_reverse()
  lib/decompress_unlzma: Do a NULL check for pointer
  lib/decompressors: use real out buf size for gunzip with kernel
  fs/affs: make root lookup from blkdev logical size
  sysctl: fix int -> unsigned long assignments in INT_MIN case
  kexec: export KERNEL_IMAGE_SIZE to vmcoreinfo
  kexec: align crash_notes allocation to make it be inside one physical page
  kexec: remove unnecessary test in kimage_alloc_crash_control_pages()
  kexec: split kexec_load syscall from kexec core code
  ...

57 files changed, 106 insertions, 1141 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 8f3564930580..4e949e58b192 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -2,6 +2,9 @@
 # General architecture dependent options
 #
 
+config KEXEC_CORE
+	bool
+
 config OPROFILE
 	tristate "OProfile system profiling"
 	depends on PROFILING
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index dfa32f061320..72a8ca7796d9 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -12,42 +12,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 
 #include <asm-generic/dma-mapping-common.h>
 
-#define dma_alloc_coherent(d,s,h,f)	dma_alloc_attrs(d,s,h,f,NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *dma_handle, gfp_t gfp,
-				    struct dma_attrs *attrs)
-{
-	return get_dma_ops(dev)->alloc(dev, size, dma_handle, gfp, attrs);
-}
-
-#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *vaddr, dma_addr_t dma_handle,
-				  struct dma_attrs *attrs)
-{
-	get_dma_ops(dev)->free(dev, size, vaddr, dma_handle, attrs);
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return get_dma_ops(dev)->mapping_error(dev, dma_addr);
-}
-
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	return get_dma_ops(dev)->dma_supported(dev, mask);
-}
-
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
-	return get_dma_ops(dev)->set_dma_mask(dev, mask);
-}
-
-#define dma_alloc_noncoherent(d, s, h, f)	dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h)	dma_free_coherent(d, s, v, h)
-
 #define dma_cache_sync(dev, va, size, dir)		  ((void)0)
 
 #endif	/* _ALPHA_DMA_MAPPING_H */
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index df24b76f9246..2b1f4a1e9272 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -166,15 +166,6 @@ static int alpha_noop_supported(struct device *dev, u64 mask)
 	return mask < 0x00ffffffUL ? 0 : 1;
 }
 
-static int alpha_noop_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-	return 0;
-}
-
 struct dma_map_ops alpha_noop_ops = {
 	.alloc			= alpha_noop_alloc_coherent,
 	.free			= alpha_noop_free_coherent,
@@ -182,7 +173,6 @@ struct dma_map_ops alpha_noop_ops = {
 	.map_sg			= alpha_noop_map_sg,
 	.mapping_error		= alpha_noop_mapping_error,
 	.dma_supported		= alpha_noop_supported,
-	.set_dma_mask		= alpha_noop_set_mask,
 };
 
 struct dma_map_ops *dma_ops = &alpha_noop_ops;
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index eddee7720343..8969bf2dfe3a 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -939,16 +939,6 @@ static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return dma_addr == 0;
 }
 
-static int alpha_pci_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask ||
-	    !pci_dma_supported(alpha_gendev_to_pci(dev), mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-	return 0;
-}
-
 struct dma_map_ops alpha_pci_ops = {
 	.alloc			= alpha_pci_alloc_coherent,
 	.free			= alpha_pci_free_coherent,
@@ -958,7 +948,6 @@ struct dma_map_ops alpha_pci_ops = {
 	.unmap_sg		= alpha_pci_unmap_sg,
 	.mapping_error		= alpha_pci_mapping_error,
 	.dma_supported		= alpha_pci_supported,
-	.set_dma_mask		= alpha_pci_set_mask,
 };
 
 struct dma_map_ops *dma_ops = &alpha_pci_ops;
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0d1b717e1eca..72ad724c67ae 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2020,6 +2020,7 @@ config KEXEC
 	bool "Kexec system call (EXPERIMENTAL)"
 	depends on (!SMP || PM_SLEEP_SMP)
 	depends on !CPU_V7M
+	select KEXEC_CORE
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c
index bd245d34952d..a0765e7ed6c7 100644
--- a/arch/arm/boot/compressed/decompress.c
+++ b/arch/arm/boot/compressed/decompress.c
@@ -57,5 +57,5 @@ extern char * strstr(const char * s1, const char *s2);
 
 int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x))
 {
-	return decompress(input, len, NULL, NULL, output, NULL, error);
+	return __decompress(input, len, NULL, NULL, output, 0, NULL, error);
 }
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index a68b9d8a71fe..ccb3aa64640d 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -8,7 +8,6 @@
 #include <linux/dma-attrs.h>
 #include <linux/dma-debug.h>
 
-#include <asm-generic/dma-coherent.h>
 #include <asm/memory.h>
 
 #include <xen/xen.h>
@@ -39,12 +38,15 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
 	dev->archdata.dma_ops = ops;
 }
 
-#include <asm-generic/dma-mapping-common.h>
+#define HAVE_ARCH_DMA_SUPPORTED 1
+extern int dma_supported(struct device *dev, u64 mask);
 
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
-	return get_dma_ops(dev)->set_dma_mask(dev, mask);
-}
+/*
+ * Note that while the generic code provides dummy dma_{alloc,free}_noncoherent
+ * implementations, we don't provide a dma_cache_sync function so drivers using
+ * this API are highlighted with build warnings.
+ */
+#include <asm-generic/dma-mapping-common.h>
 
 #ifdef __arch_page_to_dma
 #error Please update to __arch_pfn_to_dma
@@ -167,32 +169,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 
 static inline void dma_mark_clean(void *addr, size_t size) { }
 
-/*
- * DMA errors are defined by all-bits-set in the DMA address.
- */
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	debug_dma_mapping_error(dev, dma_addr);
-	return dma_addr == DMA_ERROR_CODE;
-}
-
-/*
- * Dummy noncoherent implementation.  We don't provide a dma_cache_sync
- * function so drivers using this API are highlighted with build warnings.
- */
-static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
-		dma_addr_t *handle, gfp_t gfp)
-{
-	return NULL;
-}
-
-static inline void dma_free_noncoherent(struct device *dev, size_t size,
-		void *cpu_addr, dma_addr_t handle)
-{
-}
-
-extern int dma_supported(struct device *dev, u64 mask);
-
 extern int arm_dma_set_mask(struct device *dev, u64 dma_mask);
 
 /**
@@ -209,21 +185,6 @@ extern int arm_dma_set_mask(struct device *dev, u64 dma_mask);
 extern void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 			   gfp_t gfp, struct dma_attrs *attrs);
 
-#define dma_alloc_coherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t flag,
-				       struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	void *cpu_addr;
-	BUG_ON(!ops);
-
-	cpu_addr = ops->alloc(dev, size, dma_handle, flag, attrs);
-	debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr);
-	return cpu_addr;
-}
-
 /**
  * arm_dma_free - free memory allocated by arm_dma_alloc
  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
@@ -241,19 +202,6 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 extern void arm_dma_free(struct device *dev, size_t size, void *cpu_addr,
 			 dma_addr_t handle, struct dma_attrs *attrs);
 
-#define dma_free_coherent(d, s, c, h) dma_free_attrs(d, s, c, h, NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				     void *cpu_addr, dma_addr_t dma_handle,
-				     struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	BUG_ON(!ops);
-
-	debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
-	ops->free(dev, size, cpu_addr, dma_handle, attrs);
-}
-
 /**
  * arm_dma_mmap - map a coherent DMA allocation into user space
  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index bf35abcc7d59..e62604384945 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -676,10 +676,6 @@ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		    gfp_t gfp, struct dma_attrs *attrs)
 {
 	pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL);
-	void *memory;
-
-	if (dma_alloc_from_coherent(dev, size, handle, &memory))
-		return memory;
 
 	return __dma_alloc(dev, size, handle, gfp, prot, false,
 			   attrs, __builtin_return_address(0));
@@ -688,11 +684,6 @@ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 static void *arm_coherent_dma_alloc(struct device *dev, size_t size,
 	dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
 {
-	void *memory;
-
-	if (dma_alloc_from_coherent(dev, size, handle, &memory))
-		return memory;
-
 	return __dma_alloc(dev, size, handle, gfp, PAGE_KERNEL, true,
 			   attrs, __builtin_return_address(0));
 }
@@ -752,9 +743,6 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr,
 	struct page *page = pfn_to_page(dma_to_pfn(dev, handle));
 	bool want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs);
 
-	if (dma_release_from_coherent(dev, get_order(size), cpu_addr))
-		return;
-
 	size = PAGE_ALIGN(size);
 
 	if (nommu()) {
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index f0d6d0bfe55c..cfdb34bedbcd 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -22,8 +22,6 @@
 #include <linux/types.h>
 #include <linux/vmalloc.h>
 
-#include <asm-generic/dma-coherent.h>
-
 #include <xen/xen.h>
 #include <asm/xen/hypervisor.h>
 
@@ -86,28 +84,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
 	return (phys_addr_t)dev_addr;
 }
 
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dev_addr)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	debug_dma_mapping_error(dev, dev_addr);
-	return ops->mapping_error(dev, dev_addr);
-}
-
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	return ops->dma_supported(dev, mask);
-}
-
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-	*dev->dma_mask = mask;
-
-	return 0;
-}
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	if (!dev->dma_mask)
@@ -120,50 +96,5 @@ static inline void dma_mark_clean(void *addr, size_t size)
 {
 }
 
-#define dma_alloc_coherent(d, s, h, f)	dma_alloc_attrs(d, s, h, f, NULL)
-#define dma_free_coherent(d, s, h, f)	dma_free_attrs(d, s, h, f, NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *dma_handle, gfp_t flags,
-				    struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	void *vaddr;
-
-	if (dma_alloc_from_coherent(dev, size, dma_handle, &vaddr))
-		return vaddr;
-
-	vaddr = ops->alloc(dev, size, dma_handle, flags, attrs);
-	debug_dma_alloc_coherent(dev, size, *dma_handle, vaddr);
-	return vaddr;
-}
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *vaddr, dma_addr_t dev_addr,
-				  struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	if (dma_release_from_coherent(dev, get_order(size), vaddr))
-		return;
-
-	debug_dma_free_coherent(dev, size, vaddr, dev_addr);
-	ops->free(dev, size, vaddr, dev_addr, attrs);
-}
-
-/*
- * There is no dma_cache_sync() implementation, so just return NULL here.
- */
-static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
-					  dma_addr_t *handle, gfp_t flags)
-{
-	return NULL;
-}
-
-static inline void dma_free_noncoherent(struct device *dev, size_t size,
-					void *cpu_addr, dma_addr_t handle)
-{
-}
-
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
diff --git a/arch/h8300/boot/compressed/misc.c b/arch/h8300/boot/compressed/misc.c
index 704274127c07..c4f2cfcb117b 100644
--- a/arch/h8300/boot/compressed/misc.c
+++ b/arch/h8300/boot/compressed/misc.c
@@ -70,5 +70,5 @@ void decompress_kernel(void)
 	free_mem_ptr = (unsigned long)&_end;
 	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
 
-	decompress(input_data, input_len, NULL, NULL, output, NULL, error);
+	__decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
 }
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index 6e67a90902f2..d9b5b806afe6 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -1,8 +1,6 @@
 #ifndef _H8300_DMA_MAPPING_H
 #define _H8300_DMA_MAPPING_H
 
-#include <asm-generic/dma-coherent.h>
-
 extern struct dma_map_ops h8300_dma_map_ops;
 
 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
@@ -12,46 +10,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 
 #include <asm-generic/dma-mapping-common.h>
 
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	return 0;
-}
-
-static inline int dma_set_mask(struct device *dev, u64 mask)
-{
-	return 0;
-}
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
-#define dma_alloc_coherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *dma_handle, gfp_t flag,
-				    struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	void *memory;
-
-	memory = ops->alloc(dev, size, dma_handle, flag, attrs);
-	return memory;
-}
-
-#define dma_free_coherent(d, s, c, h) dma_free_attrs(d, s, c, h, NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *cpu_addr, dma_addr_t dma_handle,
-				  struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	ops->free(dev, size, cpu_addr, dma_handle, attrs);
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
 #endif
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 16965427f6b4..268fde8a4575 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -31,12 +31,10 @@
 
 struct device;
 extern int bad_dma_address;
+#define DMA_ERROR_CODE bad_dma_address
 
 extern struct dma_map_ops *dma_ops;
 
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
 	if (unlikely(dev == NULL))
@@ -45,8 +43,8 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 	return dma_ops;
 }
 
+#define HAVE_ARCH_DMA_SUPPORTED 1
 extern int dma_supported(struct device *dev, u64 mask);
-extern int dma_set_mask(struct device *dev, u64 mask);
 extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 			   enum dma_data_direction direction);
@@ -60,47 +58,4 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size - 1 <= *dev->dma_mask;
 }
 
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-	if (dma_ops->mapping_error)
-		return dma_ops->mapping_error(dev, dma_addr);
-
-	return (dma_addr == bad_dma_address);
-}
-
-#define dma_alloc_coherent(d,s,h,f)	dma_alloc_attrs(d,s,h,f,NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *dma_handle, gfp_t flag,
-				    struct dma_attrs *attrs)
-{
-	void *ret;
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	BUG_ON(!dma_ops);
-
-	ret = ops->alloc(dev, size, dma_handle, flag, attrs);
-
-	debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
-
-	return ret;
-}
-
-#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *cpu_addr, dma_addr_t dma_handle,
-				  struct dma_attrs *attrs)
-{
-	struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-	BUG_ON(!dma_ops);
-
-	dma_ops->free(dev, size, cpu_addr, dma_handle, attrs);
-
-	debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
-}
-
 #endif
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index b74f9bae31a3..9e3ddf792bd3 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -44,17 +44,6 @@ int dma_supported(struct device *dev, u64 mask)
 }
 EXPORT_SYMBOL(dma_supported);
 
-int dma_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
-EXPORT_SYMBOL(dma_set_mask);
-
 static struct gen_pool *coherent_pool;
 
 
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 42a91a7aa2b0..eb0249e37981 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -518,6 +518,7 @@ source "drivers/sn/Kconfig"
 config KEXEC
 	bool "kexec system call"
 	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
+	select KEXEC_CORE
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index cf3ab7e784b5..9beccf8010bd 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,60 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
 extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
 				enum dma_data_direction);
 
-#define dma_alloc_coherent(d,s,h,f)	dma_alloc_attrs(d,s,h,f,NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *daddr, gfp_t gfp,
-				    struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = platform_dma_get_ops(dev);
-	void *caddr;
-
-	caddr = ops->alloc(dev, size, daddr, gfp, attrs);
-	debug_dma_alloc_coherent(dev, size, *daddr, caddr);
-	return caddr;
-}
-
-#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *caddr, dma_addr_t daddr,
-				  struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = platform_dma_get_ops(dev);
-	debug_dma_free_coherent(dev, size, caddr, daddr);
-	ops->free(dev, size, caddr, daddr, attrs);
-}
-
-#