[CRYPTO] scatterwalk: Use generic scatterlist chaining

This patch converts the crypto scatterwalk code to use the generic
scatterlist chaining rather the version specific to crypto.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

4 files changed, 3 insertions, 9 deletions

diff --git a/crypto/digest.c b/crypto/digest.c
index 8871dec8cae7..d3e827a141f1 100644
--- a/crypto/digest.c
+++ b/crypto/digest.c
@@ -21,7 +21,6 @@
 #include <linux/scatterlist.h>
 
 #include "internal.h"
-#include "scatterwalk.h"
 
 static int init(struct hash_desc *desc)
 {
@@ -77,7 +76,7 @@ static int update2(struct hash_desc *desc,
 
                 if (!nbytes)
                         break;
-                sg = scatterwalk_sg_next(sg);
+                sg = sg_next(sg);
         }
 
         return 0;
diff --git a/crypto/hmac.c b/crypto/hmac.c
index 0f05be769c34..34c3706db85d 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -160,7 +160,7 @@ static int hmac_digest(struct hash_desc *pdesc, struct scatterlist *sg,
 
         sg_init_table(sg1, 2);
         sg_set_buf(sg1, ipad, bs);
-        sg_set_page(&sg1[1], (void *) sg, 0, 0);
+        sg_chain(sg1, 2, sg);
 
         sg_init_table(sg2, 1);
         sg_set_buf(sg2, opad, bs + ds);
diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index b9bbda0bb9f9..206c39a97e57 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -62,7 +62,7 @@ static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
                 walk->offset += PAGE_SIZE - 1;
                 walk->offset &= PAGE_MASK;
                 if (walk->offset >= walk->sg->offset + walk->sg->length)
-                        scatterwalk_start(walk, scatterwalk_sg_next(walk->sg));
+                        scatterwalk_start(walk, sg_next(walk->sg));
         }
 }
 
diff --git a/crypto/scatterwalk.h b/crypto/scatterwalk.h
index 87ed681cceba..fd5517d2a7a9 100644
--- a/crypto/scatterwalk.h
+++ b/crypto/scatterwalk.h
@@ -20,11 +20,6 @@
 
 #include "internal.h"
 
-static inline struct scatterlist *scatterwalk_sg_next(struct scatterlist *sg)
-{
-        return (++sg)->length ? sg : (void *) sg_page(sg);
-}
-
 static inline unsigned long scatterwalk_samebuf(struct scatter_walk *walk_in,
                                                 struct scatter_walk *walk_out)
 {