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-rw-r--r--include/crypto/scatterwalk.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
index 07b6f17122d2..bd62431c33bd 100644
--- a/include/crypto/scatterwalk.h
+++ b/include/crypto/scatterwalk.h
@@ -52,6 +52,17 @@ static inline void crypto_yield(u32 flags)
52 cond_resched(); 52 cond_resched();
53} 53}
54 54
55static inline void scatterwalk_sg_chain(struct scatterlist *sg1, int num,
56 struct scatterlist *sg2)
57{
58 sg_set_page(&sg1[num - 1], (void *)sg2, 0, 0);
59}
60
61static inline struct scatterlist *scatterwalk_sg_next(struct scatterlist *sg)
62{
63 return (++sg)->length ? sg : (void *)sg_page(sg);
64}
65
55static inline unsigned long scatterwalk_samebuf(struct scatter_walk *walk_in, 66static inline unsigned long scatterwalk_samebuf(struct scatter_walk *walk_in,
56 struct scatter_walk *walk_out) 67 struct scatter_walk *walk_out)
57{ 68{