diff options
| author | Corentin Labbe <clabbe@baylibre.com> | 2020-09-18 07:23:06 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-09-25 17:48:17 +1000 |
| commit | a216f8d540cf13211227daf44996e8a530b92468 (patch) | |
| tree | 1a68c1b3ada0e43294357111b78017272698c3a6 /drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c | |
| parent | 87f34260f5e09a4578132ad1c05aef2d707dd4bf (diff) | |
crypto: sun8i-ce - move iv data to request context
Instead of storing IV data in the channel context, store them in the
request context.
Storing them in the channel structure was conceptualy wrong since they
are per request related.
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c')
| -rw-r--r-- | drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c index f996dc3d7dcc..f699b135de74 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c @@ -88,7 +88,6 @@ static int sun8i_ce_cipher(struct skcipher_request *areq) struct scatterlist *sg; unsigned int todo, len, offset, ivsize; dma_addr_t addr_iv = 0, addr_key = 0; - void *backup_iv = NULL; u32 common, sym; int flow, i; int nr_sgs = 0; @@ -151,24 +150,24 @@ static int sun8i_ce_cipher(struct skcipher_request *areq) ivsize = crypto_skcipher_ivsize(tfm); if (areq->iv && crypto_skcipher_ivsize(tfm) > 0) { - chan->ivlen = ivsize; - chan->bounce_iv = kzalloc(ivsize, GFP_KERNEL | GFP_DMA); - if (!chan->bounce_iv) { + rctx->ivlen = ivsize; + rctx->bounce_iv = kzalloc(ivsize, GFP_KERNEL | GFP_DMA); + if (!rctx->bounce_iv) { err = -ENOMEM; goto theend_key; } if (rctx->op_dir & CE_DECRYPTION) { - backup_iv = kzalloc(ivsize, GFP_KERNEL); - if (!backup_iv) { + rctx->backup_iv = kzalloc(ivsize, GFP_KERNEL); + if (!rctx->backup_iv) { err = -ENOMEM; goto theend_key; } offset = areq->cryptlen - ivsize; - scatterwalk_map_and_copy(backup_iv, areq->src, offset, - ivsize, 0); + scatterwalk_map_and_copy(rctx->backup_iv, areq->src, + offset, ivsize, 0); } - memcpy(chan->bounce_iv, areq->iv, ivsize); - addr_iv = dma_map_single(ce->dev, chan->bounce_iv, chan->ivlen, + memcpy(rctx->bounce_iv, areq->iv, ivsize); + addr_iv = dma_map_single(ce->dev, rctx->bounce_iv, rctx->ivlen, DMA_TO_DEVICE); cet->t_iv = cpu_to_le32(addr_iv); if (dma_mapping_error(ce->dev, addr_iv)) { @@ -249,17 +248,17 @@ theend_sgs: theend_iv: if (areq->iv && ivsize > 0) { if (addr_iv) - dma_unmap_single(ce->dev, addr_iv, chan->ivlen, + dma_unmap_single(ce->dev, addr_iv, rctx->ivlen, DMA_TO_DEVICE); offset = areq->cryptlen - ivsize; if (rctx->op_dir & CE_DECRYPTION) { - memcpy(areq->iv, backup_iv, ivsize); - kfree_sensitive(backup_iv); + memcpy(areq->iv, rctx->backup_iv, ivsize); + kfree_sensitive(rctx->backup_iv); } else { scatterwalk_map_and_copy(areq->iv, areq->dst, offset, ivsize, 0); } - kfree(chan->bounce_iv); + kfree(rctx->bounce_iv); } theend_key: |