From 378f058cc49bcda7fa63d3cd86d2f9a0a5188b1c Mon Sep 17 00:00:00 2001 From: David Hardeman Date: Sat, 17 Sep 2005 17:55:31 +1000 Subject: [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 Cc: James Bottomley Cc: Greg KH Cc: "David S. Miller" Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Herbert Xu --- drivers/md/dm-crypt.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers/md/dm-crypt.c') 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 #include #include -#include +#include #include #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); -- cgit v1.2.3-18-g5258