From e41256f139b9148cfa12d2d057fec39e3d181ff0 Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Thu, 13 Aug 2009 11:49:06 +1000 Subject: 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 Signed-off-by: Herbert Xu --- drivers/crypto/talitos.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index c70775fd3ce..b1a651c6182 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); -- cgit v1.2.3-70-g09d2