Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block

Pull asm/scatterlist.h removal from Jens Axboe:
 "We don't have any specific arch scatterlist anymore, since parisc
  finally switched over.  Kill the include"

* 'for-4.2/sg' of git://git.kernel.dk/linux-block:
  remove scatterlist.h generation from arch Kbuild files
  remove <asm/scatterlist.h>

Documentation/scsi/scsi_mid_low_api.txt

@@ -1269,7 +1269,7 @@ Members of interest:
     request_buffer - either contains data buffer or scatter gather list
                      depending on the setting of use_sg. Scatter gather
                      elements are defined by 'struct scatterlist' found
-                     in include/asm/scatterlist.h .
+                     in include/linux/scatterlist.h .
     done         - function pointer that should be invoked by LLD when the
                    SCSI command is completed (successfully or otherwise).
                    Should only be called by an LLD if the LLD has accepted

arch/alpha/include/asm/Kbuild

@@ -6,6 +6,5 @@ generic-y += exec.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += trace_clock.h

arch/alpha/include/asm/pci.h

@@ -5,7 +5,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/dma-mapping.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <asm/machvec.h>
 #include <asm-generic/pci-bridge.h>
 

arch/arc/include/asm/Kbuild

@@ -33,7 +33,6 @@ generic-y += poll.h
 generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sembuf.h
 generic-y += shmbuf.h
 generic-y += siginfo.h

arch/arm/include/asm/Kbuild

@@ -20,7 +20,6 @@ generic-y += poll.h
 generic-y += preempt.h
 generic-y += resource.h
 generic-y += rwsem.h
-generic-y += scatterlist.h
 generic-y += seccomp.h
 generic-y += sections.h
 generic-y += segment.h

arch/arm/include/asm/dma.h

@@ -19,7 +19,7 @@
  * It should not be re-used except for that purpose.
  */
 #include <linux/spinlock.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 
 #include <mach/isa-dma.h>
 

arch/arm/mach-footbridge/dma.c

@@ -13,9 +13,9 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/spinlock.h>
+#include <linux/scatterlist.h>
 
 #include <asm/dma.h>
-#include <asm/scatterlist.h>
 
 #include <asm/mach/dma.h>
 #include <asm/hardware/dec21285.h>

arch/arm64/include/asm/Kbuild

@@ -35,7 +35,6 @@ generic-y += poll.h
 generic-y += preempt.h
 generic-y += resource.h
 generic-y += rwsem.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += sembuf.h

arch/avr32/include/asm/Kbuild

@@ -15,7 +15,6 @@ generic-y += mcs_spinlock.h
 generic-y += param.h
 generic-y += percpu.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += topology.h
 generic-y += trace_clock.h

arch/blackfin/include/asm/Kbuild

@@ -29,7 +29,6 @@ generic-y += percpu.h
 generic-y += pgalloc.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sembuf.h
 generic-y += serial.h
 generic-y += setup.h

arch/blackfin/include/asm/pci.h

@@ -3,7 +3,7 @@
 #ifndef _ASM_BFIN_PCI_H
 #define _ASM_BFIN_PCI_H
 
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <asm-generic/pci-dma-compat.h>
 #include <asm-generic/pci.h>
 

arch/c6x/include/asm/Kbuild

@@ -38,7 +38,6 @@ generic-y += poll.h
 generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += segment.h
 generic-y += sembuf.h
 generic-y += serial.h

arch/cris/include/asm/Kbuild

@@ -21,7 +21,6 @@ generic-y += mcs_spinlock.h
 generic-y += module.h
 generic-y += percpu.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += topology.h
 generic-y += trace_clock.h

arch/cris/include/asm/dma-mapping.h

@@ -5,10 +5,10 @@
 
 #include <linux/mm.h>
 #include <linux/kernel.h>
+#include <linux/scatterlist.h>
 
 #include <asm/cache.h>
 #include <asm/io.h>
-#include <asm/scatterlist.h>
 
 #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)

arch/cris/include/asm/pci.h

@@ -29,7 +29,7 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
 
 #include <linux/types.h>
 #include <linux/slab.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <asm/io.h>
 

arch/frv/include/asm/Kbuild

@@ -5,5 +5,4 @@ generic-y += exec.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += trace_clock.h

arch/frv/include/asm/dma-mapping.h

@@ -2,9 +2,9 @@
 #define _ASM_DMA_MAPPING_H
 
 #include <linux/device.h>
+#include <linux/scatterlist.h>
 #include <asm/cache.h>
 #include <asm/cacheflush.h>
-#include <asm/scatterlist.h>
 #include <asm/io.h>
 
 /*

arch/frv/include/asm/pci.h

@@ -14,7 +14,7 @@
 #define _ASM_FRV_PCI_H
 
 #include <linux/mm.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <asm-generic/pci-dma-compat.h>
 #include <asm-generic/pci.h>
 

arch/hexagon/include/asm/Kbuild

@@ -37,7 +37,6 @@ generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
 generic-y += rwsem.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += sembuf.h

arch/ia64/include/asm/Kbuild

@@ -5,6 +5,5 @@ generic-y += irq_work.h
 generic-y += kvm_para.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += trace_clock.h
 generic-y += vtime.h

arch/ia64/include/asm/pci.h

@@ -6,9 +6,9 @@
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/types.h>
+#include <linux/scatterlist.h>
 
 #include <asm/io.h>
-#include <asm/scatterlist.h>
 #include <asm/hw_irq.h>
 
 struct pci_vector_struct {

arch/m32r/include/asm/Kbuild

@@ -6,6 +6,5 @@ generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += module.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += trace_clock.h

arch/m68k/include/asm/Kbuild

@@ -23,7 +23,6 @@ generic-y += mutex.h
 generic-y += percpu.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += shmparam.h
 generic-y += siginfo.h

arch/metag/include/asm/Kbuild

@@ -33,7 +33,6 @@ generic-y += percpu.h
 generic-y += poll.h
 generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += sembuf.h
 generic-y += serial.h

arch/microblaze/include/asm/Kbuild

@@ -7,6 +7,5 @@ generic-y += exec.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += syscalls.h
 generic-y += trace_clock.h

arch/microblaze/include/asm/pci.h

@@ -16,8 +16,8 @@
 #include <linux/string.h>
 #include <linux/dma-mapping.h>
 #include <linux/pci.h>
+#include <linux/scatterlist.h>
 
-#include <asm/scatterlist.h>
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/pci-bridge.h>

arch/mips/include/asm/Kbuild

@@ -11,7 +11,6 @@ generic-y += mutex.h
 generic-y += parport.h
 generic-y += percpu.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += serial.h

arch/mips/include/asm/dma-mapping.h

@@ -1,7 +1,7 @@
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
 
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <asm/dma-coherence.h>
 #include <asm/cache.h>
 #include <asm-generic/dma-coherent.h>

arch/mips/include/asm/pci.h

@@ -99,7 +99,7 @@ static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
 
 #include <linux/types.h>
 #include <linux/slab.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <asm/io.h>
 #include <asm-generic/pci-bridge.h>

arch/mn10300/include/asm/Kbuild

@@ -6,6 +6,5 @@ generic-y += exec.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += trace_clock.h

arch/mn10300/include/asm/pci.h

@@ -55,7 +55,7 @@ void pcibios_set_master(struct pci_dev *dev);
 
 #include <linux/types.h>
 #include <linux/slab.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <asm/io.h>
 

arch/nios2/include/asm/Kbuild

@@ -40,7 +40,6 @@ generic-y += poll.h
 generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += sembuf.h

arch/openrisc/include/asm/Kbuild

@@ -45,7 +45,6 @@ generic-y += poll.h
 generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += sembuf.h

arch/parisc/include/asm/Kbuild

@@ -20,7 +20,6 @@ generic-y += param.h
 generic-y += percpu.h
 generic-y += poll.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += seccomp.h
 generic-y += segment.h
 generic-y += topology.h

arch/parisc/include/asm/dma-mapping.h

@@ -2,8 +2,8 @@
 #define _PARISC_DMA_MAPPING_H
 
 #include <linux/mm.h>
+#include <linux/scatterlist.h>
 #include <asm/cacheflush.h>
-#include <asm/scatterlist.h>
 
 /* See Documentation/DMA-API-HOWTO.txt */
 struct hppa_dma_ops {

arch/parisc/include/asm/pci.h

@@ -1,7 +1,7 @@
 #ifndef __ASM_PARISC_PCI_H
 #define __ASM_PARISC_PCI_H
 
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 
 
 

arch/powerpc/include/asm/Kbuild

@@ -6,6 +6,5 @@ generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
 generic-y += rwsem.h
-generic-y += scatterlist.h
 generic-y += trace_clock.h
 generic-y += vtime.h

arch/powerpc/include/asm/pci.h

@@ -13,9 +13,9 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
 
 #include <asm/machdep.h>
-#include <asm/scatterlist.h>
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/pci-bridge.h>

arch/powerpc/include/asm/vio.h

@@ -19,9 +19,9 @@
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
 #include <linux/mod_devicetable.h>
+#include <linux/scatterlist.h>
 
 #include <asm/hvcall.h>
-#include <asm/scatterlist.h>
 
 /*
  * Architecture-specific constants for drivers to

arch/s390/include/asm/Kbuild

@@ -4,5 +4,4 @@ generic-y += clkdev.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += trace_clock.h

arch/score/include/asm/Kbuild

@@ -8,7 +8,6 @@ generic-y += cputime.h
 generic-y += irq_work.h
 generic-y += mcs_spinlock.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += trace_clock.h
 generic-y += xor.h

arch/sh/include/asm/Kbuild

@@ -24,7 +24,6 @@ generic-y += percpu.h
 generic-y += poll.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sembuf.h
 generic-y += serial.h
 generic-y += shmbuf.h

arch/sparc/include/asm/Kbuild

@@ -15,7 +15,6 @@ generic-y += mcs_spinlock.h
 generic-y += module.h
 generic-y += mutex.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += serial.h
 generic-y += trace_clock.h
 generic-y += types.h

arch/sparc/kernel/iommu_common.h

@@ -13,9 +13,9 @@
 #include <linux/scatterlist.h>
 #include <linux/device.h>
 #include <linux/iommu-helper.h>
+#include <linux/scatterlist.h>
 
 #include <asm/iommu.h>
-#include <asm/scatterlist.h>
 
 /*
  * These give mapping size of each iommu pte/tlb.

arch/tile/include/asm/Kbuild

@@ -27,7 +27,6 @@ generic-y += poll.h
 generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sembuf.h
 generic-y += serial.h
 generic-y += shmbuf.h

arch/um/include/asm/Kbuild

@@ -21,7 +21,6 @@ generic-y += param.h
 generic-y += pci.h
 generic-y += percpu.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += switch_to.h
 generic-y += topology.h

arch/unicore32/include/asm/Kbuild

@@ -36,7 +36,6 @@ generic-y += poll.h
 generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += sembuf.h

arch/x86/include/asm/Kbuild

@@ -9,4 +9,3 @@ generic-y += cputime.h
 generic-y += dma-contiguous.h
 generic-y += early_ioremap.h
 generic-y += mcs_spinlock.h
-generic-y += scatterlist.h

arch/x86/include/asm/pci.h

@@ -5,7 +5,7 @@
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/string.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <asm/io.h>
 #include <asm/x86_init.h>
 

arch/xtensa/include/asm/Kbuild

@@ -22,7 +22,6 @@ generic-y += mcs_spinlock.h
 generic-y += percpu.h
 generic-y += preempt.h
 generic-y += resource.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += siginfo.h
 generic-y += statfs.h

arch/xtensa/include/asm/pci.h

@@ -33,7 +33,7 @@ extern struct pci_controller* pcibios_alloc_controller(void);
 
 #include <linux/types.h>
 #include <linux/slab.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <linux/string.h>
 #include <asm/io.h>
 

drivers/mmc/host/android-goldfish.c

@@ -42,10 +42,10 @@
 #include <linux/spinlock.h>
 #include <linux/timer.h>
 #include <linux/clk.h>
+#include <linux/scatterlist.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/scatterlist.h>
 
 #include <asm/types.h>
 #include <asm/io.h>

include/asm-generic/scatterlist.h

@@ -1,34 +0,0 @@
-#ifndef __ASM_GENERIC_SCATTERLIST_H
-#define __ASM_GENERIC_SCATTERLIST_H
-
-#include <linux/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-	unsigned long	sg_magic;
-#endif
-	unsigned long	page_link;
-	unsigned int	offset;
-	unsigned int	length;
-	dma_addr_t	dma_address;
-#ifdef CONFIG_NEED_SG_DMA_LENGTH
-	unsigned int	dma_length;
-#endif
-};
-
-/*
- * These macros should be used after a dma_map_sg call has been done
- * to get bus addresses of each of the SG entries and their lengths.
- * You should only work with the number of sg entries pci_map_sg
- * returns, or alternatively stop on the first sg_dma_len(sg) which
- * is 0.
- */
-#define sg_dma_address(sg)	((sg)->dma_address)
-
-#ifdef CONFIG_NEED_SG_DMA_LENGTH
-#define sg_dma_len(sg)		((sg)->dma_length)
-#else
-#define sg_dma_len(sg)		((sg)->length)
-#endif
-
-#endif /* __ASM_GENERIC_SCATTERLIST_H */

include/linux/blkdev.h

@@ -22,8 +22,7 @@
 #include <linux/smp.h>
 #include <linux/rcupdate.h>
 #include <linux/percpu-refcount.h>
-
+#include <linux/scatterlist.h>
-#include <asm/scatterlist.h>
 
 struct module;
 struct scsi_ioctl_command;

include/linux/dmapool.h

@@ -11,8 +11,8 @@
 #ifndef LINUX_DMAPOOL_H
 #define	LINUX_DMAPOOL_H
 
+#include <linux/scatterlist.h>
 #include <asm/io.h>
-#include <asm/scatterlist.h>
 
 struct device;
 

include/linux/scatterlist.h

@@ -2,13 +2,39 @@
 #define _LINUX_SCATTERLIST_H
 
 #include <linux/string.h>
+#include <linux/types.h>
 #include <linux/bug.h>
 #include <linux/mm.h>
-
-#include <asm/types.h>
-#include <asm/scatterlist.h>
 #include <asm/io.h>
 
+struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+	unsigned long	sg_magic;
+#endif
+	unsigned long	page_link;
+	unsigned int	offset;
+	unsigned int	length;
+	dma_addr_t	dma_address;
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
+	unsigned int	dma_length;
+#endif
+};
+
+/*
+ * These macros should be used after a dma_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries dma_map_sg
+ * returns, or alternatively stop on the first sg_dma_len(sg) which
+ * is 0.
+ */
+#define sg_dma_address(sg)	((sg)->dma_address)
+
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
+#define sg_dma_len(sg)		((sg)->dma_length)
+#else
+#define sg_dma_len(sg)		((sg)->length)
+#endif
+
 struct sg_table {
 	struct scatterlist *sgl;	/* the list */
 	unsigned int nents;		/* number of mapped entries */
@@ -18,10 +44,9 @@ struct sg_table {
 /*
  * Notes on SG table design.
  *
- * Architectures must provide an unsigned long page_link field in the
+ * We use the unsigned long page_link field in the scatterlist struct to place
- * scatterlist struct. We use that to place the page pointer AND encode
+ * the page pointer AND encode information about the sg table as well. The two
- * information about the sg table as well. The two lower bits are reserved
+ * lower bits are reserved for this information.
- * for this information.
  *
  * If bit 0 is set, then the page_link contains a pointer to the next sg
  * table list. Otherwise the next entry is at sg + 1.

lib/swiotlb.c

@@ -29,10 +29,10 @@
 #include <linux/ctype.h>
 #include <linux/highmem.h>
 #include <linux/gfp.h>
+#include <linux/scatterlist.h>
 
 #include <asm/io.h>
 #include <asm/dma.h>
-#include <asm/scatterlist.h>
 
 #include <linux/init.h>
 #include <linux/bootmem.h>