Re: [PATCH 2/5] dma-mapping: consolidate dma_{alloc,free}_noncoherent
From: Christoph Hellwig <hch@lst.de>
Date: 2015-08-13 17:55:47
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linux-alpha, linux-mips, linux-s390, linux-sh, lkml, sparclinux
On Thu, Aug 13, 2015 at 04:20:40PM +0100, Russell King - ARM Linux wrote:
quoted
-/* - * Dummy noncoherent implementation. We don't provide a dma_cache_sync - * function so drivers using this API are highlighted with build warnings. - */I'd like a similar comment to remain after this patch explaining that we don't support non-coherent allocations and that it'll be highlighted by the lack of dma_cache_sync, otherwise I'm sure we'll start to get patches to add the thing.
I'll keep a modified version of this comment in the ARM dma-mapping.h in addition to an explanation near the new common dma_alloc_noncoherent definition, thanks!