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-rw-r--r--crypto/scatterwalk.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/scatterwalk.h b/crypto/scatterwalk.h
index 5495bb970816..e79925c474a3 100644
--- a/crypto/scatterwalk.h
+++ b/crypto/scatterwalk.h
@@ -55,6 +55,12 @@ static inline void scatterwalk_advance(struct scatter_walk *walk,
walk->len_this_segment -= nbytes;
}
+static inline unsigned int scatterwalk_aligned(struct scatter_walk *walk,
+ unsigned int alignmask)
+{
+ return !(walk->offset & alignmask);
+}
+
void scatterwalk_start(struct scatter_walk *walk, struct scatterlist *sg);
int scatterwalk_copychunks(void *buf, struct scatter_walk *walk, size_t nbytes, int out);
void scatterwalk_map(struct scatter_walk *walk, int out);

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