Messages in this thread | | | Date | Mon, 18 May 2009 19:45:09 +0900 | Subject | Re: [PATCH] ata: libata depends on HAS_DMA | From | FUJITA Tomonori <> |
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On Fri, 15 May 2009 13:16:30 +0200 Arnd Bergmann <arnd@arndb.de> wrote:
> On Friday 15 May 2009, Tejun Heo wrote: > > FUJITA Tomonori wrote: > > > Can libata call dma_supported() per device to decide DMA or PIO mode? > > > Then, we can solve this problem by add dummy DMA API (just calls BUG) > > > on such architectures, without Kconfig magic or adding ifdef (like the > > > old ide stack does), I think. > > That would be the !CONFIG_PCI half of the old > include/asm-generic/dma-mapping.h file that you just removed, > right?
No.
The old include/asm-generic/dma-mapping.h is a workaround for lazy architecture maintainers who have not converted pci_* API to dma_* API.
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