crypto: amcc - replace get_sg_count by sg_nents_for_len

The get_sg_count function of amcc is the same as sg_nents_for_len from
lib/scatterlist.c

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
index 7e9e461a9cbccca6f826f692a3738b1d69496179..58a630e55d5d601d7afc844626a9a7f92ff948ab 100644 (file)
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -740,26 +740,6 @@ void crypto4xx_return_pd(struct crypto4xx_device *dev,
        pd_uinfo->state = PD_ENTRY_FREE;
 }
 
-/*
- * derive number of elements in scatterlist
- * Shamlessly copy from talitos.c
- */
-static int get_sg_count(struct scatterlist *sg_list, int nbytes)
-{
-       struct scatterlist *sg = sg_list;
-       int sg_nents = 0;
-
-       while (nbytes) {
-               sg_nents++;
-               if (sg->length > nbytes)
-                       break;
-               nbytes -= sg->length;
-               sg = sg_next(sg);
-       }
-
-       return sg_nents;
-}
-
 static u32 get_next_gd(u32 current)
 {
        if (current != PPC4XX_LAST_GD)
@@ -800,7 +780,7 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
        u32 gd_idx = 0;
 
        /* figure how many gd is needed */
-       num_gd = get_sg_count(src, datalen);
+       num_gd = sg_nents_for_len(src, datalen);
        if (num_gd == 1)
                num_gd = 0;