On Tue, Jan 25, 2011 at 05:06:28PM -0800, David Rientjes wrote: > CONFIG_GENERIC_ISA_DMA and CONFIG_ISA_DMA_API usually have dependencies > on one another depending on the architecture and generic kernel code uses > either to determine whether an ISA-style DMA API is configured. Wrong. GENERIC_ISA_DMA enables support for the standard ISA DMA allocator found in kernel/dma.c ISA_DMA_API says that a platform supports the ISA DMA interfaces. An architecture can provide the ISA DMA interfaces, but not use the standard ISA DMA allocator found in kernel/dma.c. Such as the one in arch/arm/kernel/dma.c. So on ARM, we have platforms where ISA_DMA_API=y but GENERIC_ISA_DMA=n. > This patch unifies both options and consolidates them into a single > option: CONFIG_GENERIC_ISA_DMA. It is also a prerequisite for a 1% text > savings for a future x86 patch that allows these options to be disabled > on that architecture when CONFIG_ZONE_DMA also becomes configurable. NAK. This is wrong. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
