On Thu, Aug 13, 2015 at 05:04:05PM +0200, Christoph Hellwig wrote: > diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h > index 2ae3424..ab521d5 100644 > --- a/arch/arm/include/asm/dma-mapping.h > +++ b/arch/arm/include/asm/dma-mapping.h > @@ -175,21 +175,6 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) > return dma_addr == DMA_ERROR_CODE; > } > > -/* > - * 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. -- FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up according to speedtest.net.
