[PATCH] Use sg_set_buf/sg_init_one where applicable

This patch uses sg_set_buf/sg_init_one in some places where it was
duplicated.

Signed-off-by: David Hardeman <david@2gen.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Greg KH <greg@kroah.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 5 insertions, 14 deletions

diff --git a/crypto/hmac.c b/crypto/hmac.c
index da0456b37109..46120dee5ada 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -18,18 +18,15 @@
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include "internal.h"
 
 static void hash_key(struct crypto_tfm *tfm, u8 *key, unsigned int keylen)
 {
         struct scatterlist tmp;
         
-        tmp.page = virt_to_page(key);
-        tmp.offset = offset_in_page(key);
-        tmp.length = keylen;
+        sg_set_buf(&tmp, key, keylen);
         crypto_digest_digest(tfm, &tmp, 1, key);
-                
 }
 
 int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
@@ -69,9 +66,7 @@ void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen)
         for (i = 0; i < crypto_tfm_alg_blocksize(tfm); i++)
                 ipad[i] ^= 0x36;
 
-        tmp.page = virt_to_page(ipad);
-        tmp.offset = offset_in_page(ipad);
-        tmp.length = crypto_tfm_alg_blocksize(tfm);
+        sg_set_buf(&tmp, ipad, crypto_tfm_alg_blocksize(tfm));
         
         crypto_digest_init(tfm);
         crypto_digest_update(tfm, &tmp, 1);
@@ -103,16 +98,12 @@ void crypto_hmac_final(struct crypto_tfm *tfm, u8 *key,
         for (i = 0; i < crypto_tfm_alg_blocksize(tfm); i++)
                 opad[i] ^= 0x5c;
 
-        tmp.page = virt_to_page(opad);
-        tmp.offset = offset_in_page(opad);
-        tmp.length = crypto_tfm_alg_blocksize(tfm);
+        sg_set_buf(&tmp, opad, crypto_tfm_alg_blocksize(tfm));
 
         crypto_digest_init(tfm);
         crypto_digest_update(tfm, &tmp, 1);
         
-        tmp.page = virt_to_page(out);
-        tmp.offset = offset_in_page(out);
-        tmp.length = crypto_tfm_alg_digestsize(tfm);
+        sg_set_buf(&tmp, out, crypto_tfm_alg_digestsize(tfm));
         
         crypto_digest_update(tfm, &tmp, 1);
         crypto_digest_final(tfm, out);