device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT



No need to carry an unused field around.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent d0377392

include/linux/device.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -1017,8 +1017,10 @@ struct device {

		struct list_head dma_pools; /* dma pools (if dma'ble) */

		#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
		struct dma_coherent_mem dma_mem; / internal for coherent mem
		override */
		#endif
		#ifdef CONFIG_DMA_CMA
		struct cma cma_area; / contiguous memory area for dma
		allocations */