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James Bottomley 32e8f70230 introduce DMA_MASK_NONE as a signal for unable to do DMA 
Some devices are incapable of DMA and need to be recognised as such.
Introduce a NONE dma mask to facilitate this plus an inline function:
is_device_dma_capable() to check this.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Natalie Protasevich <protasnb@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2007-10-16 09:42:50 -07:00
..
acpi ACPI: CONFIG_ACPI_SLEEP=n power off regression in 2.6.23-rc8 (NOT in rc7) 2007-09-25 17:58:52 -04:00
asm-alpha Fix Alpha O_CLOEXEC definition 2007-08-09 08:39:22 -07:00
asm-arm Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-10-15 16:08:50 -07:00
asm-avr32 [AVR32] Don't use __builtin_xchg() 2007-10-11 13:32:56 +02:00
asm-blackfin Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2007-10-15 13:41:39 -07:00
asm-cris remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-frv frv: missing casts in cmpxchg() 2007-10-14 12:41:51 -07:00
asm-generic fix sparc32 breakage (result of vmlinux.lds.S bug) 2007-10-13 09:58:59 -07:00
asm-h8300 Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-ia64 [IA64] build fix for scatterlist 2007-10-15 13:49:43 -07:00
asm-m32r Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-m68k m68k: Export cachectl.h 2007-10-13 09:41:03 -07:00
asm-m68knommu Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-mips move a few definitions to au1000_xxs1500.c 2007-10-16 09:42:50 -07:00
asm-parisc [PARISC] Add dummy isa_(bus|virt)_to_(virt|bus) inlines 2007-08-27 00:29:22 -04:00
asm-powerpc Use dcr_host_t.base in dcr_unmap() 2007-10-15 14:29:49 -04:00
asm-ppc [POWERPC] Prevent direct inclusion of <asm/rwsem.h>. 2007-09-22 14:49:21 +10:00
asm-s390 [S390] s390: use PAGE_SIZE in vmlinux.lds 2007-10-12 16:13:10 +02:00
asm-sh Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2007-10-13 09:49:04 -07:00
asm-sh64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh64-2.6 2007-10-13 09:50:26 -07:00
asm-sparc [SPARC32]: Add irqflags.h to sparc32 and use it from generic code. 2007-10-13 21:53:11 -07:00
asm-sparc64 [SPARC64]: virt_irq --> bucket mapping no longer necessary 2007-10-13 23:50:38 -07:00
asm-um UML: Fix ELF_CORE_COPY_REGS build botch 2007-09-10 18:58:05 -07:00
asm-v850 Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-x86 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm 2007-10-13 10:02:11 -07:00
asm-xtensa [patch 1/2] Xtensa: enable arbitary tty speed setting ioctls 2007-08-27 13:54:25 -07:00
crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
keys
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linux introduce DMA_MASK_NONE as a signal for unable to do DMA 2007-10-16 09:42:50 -07:00
math-emu Fix <math-emu/soft-fp.h> tpyo 2007-08-18 17:15:17 -07:00
media v4l: copy_to_user() is not a good method name 2007-10-13 09:58:59 -07:00
mtd
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net [IPV6]: Replace sk_buff ** with sk_buff * in input handlers 2007-10-15 12:50:28 -07:00
pcmcia
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rdma IB/cm: Modify interface to send MRAs in response to duplicate messages 2007-10-09 19:59:17 -07:00
rxrpc
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scsi Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-15 08:19:33 -07:00
sound
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video remove tx3912fb 2007-07-31 15:39:41 -07:00
xen xen: xen/page.h compile fix 2007-07-26 11:35:16 -07:00
Kbuild
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