X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=crypto%2Fscatterwalk.h;h=e79925c474a3a2eb6de0fe120d1e0151acd45530;hb=6c9c0b52b8c6b68b05bb06efd7079a8fc5e9ba60;hp=5495bb9708167a05146df272ff616c0ddb227033;hpb=c774e93e2152d0be2612739418689e6e6400f4eb;p=linux-2.6

diff --git a/crypto/scatterwalk.h b/crypto/scatterwalk.h
index 5495bb9708..e79925c474 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);