Messages in this thread | | | Date | Fri, 23 Feb 2007 10:50:40 +0100 | From | Heiko Carstens <> | Subject | Re: [PATCH] dma-mapping-broken.h: flesh-out DMA API stubs |
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On Fri, Feb 23, 2007 at 07:13:32AM +0100, Heiko Carstens wrote: > How about this for telling that an architecture doesn't support DMA? > At least we could get rid of dma-mapping-broken.h and don't need to > compile some afterwards dead code. > > Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> > --- > arch/s390/Kconfig | 3 +++ > drivers/base/Makefile | 4 ++-- > include/asm-s390/dma-mapping.h | 2 -- > lib/Kconfig | 5 +++++ > 4 files changed, 10 insertions(+), 4 deletions(-) > > Index: linux-2.6/arch/s390/Kconfig > =================================================================== > --- linux-2.6.orig/arch/s390/Kconfig > +++ linux-2.6/arch/s390/Kconfig > @@ -44,6 +44,9 @@ config GENERIC_TIME > config NO_IOMEM > def_bool y > > +config NO_DMA > + def_bool y > + > mainmenu "Linux Kernel Configuration" > > config S390 > Index: linux-2.6/drivers/base/Makefile > =================================================================== > --- linux-2.6.orig/drivers/base/Makefile > +++ linux-2.6/drivers/base/Makefile > @@ -2,10 +2,10 @@ > > obj-y := core.o sys.o bus.o dd.o \ > driver.o class.o platform.o \ > - cpu.o firmware.o init.o map.o dmapool.o \ > - dma-mapping.o devres.o \ > + cpu.o firmware.o init.o map.o devres.o \ > attribute_container.o transport_class.o > obj-y += power/ > +obj-$(CONFIG_DMA) += dma-mapping.o dmapool.o
This should have been CONFIG_HAS_DMA. Anyway I'm going to resend this one if nobody objects.
> obj-$(CONFIG_ISA) += isa.o > obj-$(CONFIG_FW_LOADER) += firmware_class.o > obj-$(CONFIG_NUMA) += node.o > Index: linux-2.6/include/asm-s390/dma-mapping.h > =================================================================== > --- linux-2.6.orig/include/asm-s390/dma-mapping.h > +++ linux-2.6/include/asm-s390/dma-mapping.h > @@ -9,6 +9,4 @@ > #ifndef _ASM_DMA_MAPPING_H > #define _ASM_DMA_MAPPING_H > > -#include <asm-generic/dma-mapping-broken.h> > - > #endif /* _ASM_DMA_MAPPING_H */ > Index: linux-2.6/lib/Kconfig > =================================================================== > --- linux-2.6.orig/lib/Kconfig > +++ linux-2.6/lib/Kconfig > @@ -111,4 +111,9 @@ config HAS_IOPORT > depends on HAS_IOMEM && !NO_IOPORT > default y > > +config HAS_DMA > + boolean > + depends on !NO_DMA > + default y > + > endmenu
-- Heiko Carstens Linux on System z Development
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