[PATCH 01/31] scatterlist: add sg_pfn and sg_has_page helpers
From: Christoph Hellwig <hch@lst.de>
Date: 2015-08-12 07:20:56
Also in:
linux-alpha, linux-arch, linux-media, linux-mips, linux-s390, lkml, sparclinux
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/scatterlist.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 9b1ef0c..b1056bf 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h@@ -230,6 +230,16 @@ static inline dma_addr_t sg_phys(struct scatterlist *sg) return page_to_phys(sg_page(sg)) + sg->offset; } +static inline unsigned long sg_pfn(struct scatterlist *sg) +{ + return page_to_pfn(sg_page(sg)); +} + +static inline bool sg_has_page(struct scatterlist *sg) +{ + return true; +} + /** * sg_virt - Return virtual address of an sg entry * @sg: SG entry
--
1.9.1