aboutsummaryrefslogtreecommitdiff
path: root/drivers/crypto/talitos.c
diff options
context:
space:
mode:
authorKim Phillips <kim.phillips@freescale.com>2009-08-13 11:49:06 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2009-08-13 11:49:06 +1000
commite41256f139b9148cfa12d2d057fec39e3d181ff0 (patch)
tree8418a8d9ecd910a3dadf8a15348c00096c162edd /drivers/crypto/talitos.c
parent85a7f0ac5370901916a21935e1fafbe397b70f80 (diff)
downloadlinux-linaro-stable-e41256f139b9148cfa12d2d057fec39e3d181ff0.tar.gz
crypto: talitos - simplify hmac data size calculation
don't do request->src vs. assoc pointer math - it's the same as adding assoclen and ivsize (just with more effort). Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/talitos.c')
-rw-r--r--drivers/crypto/talitos.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index c70775fd3ce2..b1a651c61829 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -970,7 +970,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
struct talitos_desc *desc = &edesc->desc;
unsigned int cryptlen = areq->cryptlen;
unsigned int authsize = ctx->authsize;
- unsigned int ivsize;
+ unsigned int ivsize = crypto_aead_ivsize(aead);
int sg_count, ret;
int sg_link_tbl_len;
@@ -978,11 +978,9 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
0, DMA_TO_DEVICE);
/* hmac data */
- map_single_talitos_ptr(dev, &desc->ptr[1], sg_virt(areq->src) -
- sg_virt(areq->assoc), sg_virt(areq->assoc), 0,
- DMA_TO_DEVICE);
+ map_single_talitos_ptr(dev, &desc->ptr[1], areq->assoclen + ivsize,
+ sg_virt(areq->assoc), 0, DMA_TO_DEVICE);
/* cipher iv */
- ivsize = crypto_aead_ivsize(aead);
map_single_talitos_ptr(dev, &desc->ptr[2], ivsize, giv ?: areq->iv, 0,
DMA_TO_DEVICE);