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| author | Kim Phillips <kim.phillips@freescale.com> | 2009-08-13 11:49:06 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2009-08-13 11:49:06 +1000 |
| commit | e41256f139b9148cfa12d2d057fec39e3d181ff0 (patch) | |
| tree | 8418a8d9ecd910a3dadf8a15348c00096c162edd /drivers/crypto | |
| parent | 85a7f0ac5370901916a21935e1fafbe397b70f80 (diff) | |
| download | linux-e41256f139b9148cfa12d2d057fec39e3d181ff0.tar.gz linux-e41256f139b9148cfa12d2d057fec39e3d181ff0.tar.bz2 linux-e41256f139b9148cfa12d2d057fec39e3d181ff0.zip | |
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')
| -rw-r--r-- | drivers/crypto/talitos.c | 8 |
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); |