> It's also incomplete as a fix because I don't see what guarantees the > buffer size will always exceed cache line size
There's a macro trick that adds a pad member after the buffer too, so that it gets rounded up to the cacheline size: > +#define __dma_aligned > __attribute__((aligned(ARCH_MIN_DMA_ALIGNMENT))) > +#define __dma_buffer __dma_buffer_line(__LINE__) > +#define __dma_buffer_line(line) __dma_aligned;\ > + char __dma_pad_##line[0] __dma_aligned So that part is OK at least. - R. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
