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Commit 21bb9d64 authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

swiotlb: remove a pointless comment 



This comments describes an aspect of the map_sg interface that isn't
even exploited by swiotlb.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarRobin Murphy <robin.murphy@arm.com>
Reviewed-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent b9fd0426

kernel/dma/swiotlb.c

+0 −6
Original line number Original line Diff line number Diff line
@@ -925,12 +925,6 @@ swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr, 
 * appropriate dma address and length.  They are obtained via

 * appropriate dma address and length.  They are obtained via

 * sg_dma_{address,length}(SG).

 * sg_dma_{address,length}(SG).

 *

 *

 * NOTE: An implementation may be able to use a smaller number of

 *       DMA address/length pairs than there are SG table elements.

 *       (for example via virtual mapping capabilities)

 *       The routine returns the number of addr/length pairs actually

 *       used, at most nents.

 *

 * Device ownership issues as mentioned above for swiotlb_map_page are the

 * Device ownership issues as mentioned above for swiotlb_map_page are the

 * same here.

 * same here.

 */

 */