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authorDavid Hardeman <david@2gen.com>2005-09-17 17:55:31 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2005-10-30 11:19:43 +1100
commit378f058cc49bcda7fa63d3cd86d2f9a0a5188b1c (patch)
treeed99548aa459054c7b046f0ac96af2cc50683e6e /drivers/md/dm-crypt.c
parentd32311fed70d12f14e585feb4653571b1e2b0e6d (diff)
[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>
Diffstat (limited to 'drivers/md/dm-crypt.c')
-rw-r--r--drivers/md/dm-crypt.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 28c1a628621..cf663105668 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -15,7 +15,7 @@
#include <linux/crypto.h>
#include <linux/workqueue.h>
#include <asm/atomic.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
#include <asm/page.h>
#include "dm.h"
@@ -164,9 +164,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
return -ENOMEM;
}
- sg.page = virt_to_page(cc->key);
- sg.offset = offset_in_page(cc->key);
- sg.length = cc->key_size;
+ sg_set_buf(&sg, cc->key, cc->key_size);
crypto_digest_digest(hash_tfm, &sg, 1, salt);
crypto_free_tfm(hash_tfm);
@@ -207,14 +205,12 @@ static void crypt_iv_essiv_dtr(struct crypt_config *cc)
static int crypt_iv_essiv_gen(struct crypt_config *cc, u8 *iv, sector_t sector)
{
- struct scatterlist sg = { NULL, };
+ struct scatterlist sg;
memset(iv, 0, cc->iv_size);
*(u64 *)iv = cpu_to_le64(sector);
- sg.page = virt_to_page(iv);
- sg.offset = offset_in_page(iv);
- sg.length = cc->iv_size;
+ sg_set_buf(&sg, iv, cc->iv_size);
crypto_cipher_encrypt((struct crypto_tfm *)cc->iv_gen_private,
&sg, &sg, cc->iv_size);