diff options
| -rw-r--r-- | drivers/crypto/omap-aes.c | 35 |
1 files changed, 14 insertions, 21 deletions
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index ad6e2b37dbd5..379d70157ae7 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -101,14 +101,13 @@ #define AES_BLOCK_WORDS (AES_BLOCK_SIZE >> 2) struct omap_aes_ctx { - struct omap_aes_dev *dd; - int keylen; u32 key[AES_KEYSIZE_256 / sizeof(u32)]; struct crypto_skcipher *fallback; }; struct omap_aes_reqctx { + struct omap_aes_dev *dd; unsigned long mode; }; @@ -328,14 +327,14 @@ static void omap_aes_dma_stop(struct omap_aes_dev *dd) omap_aes_write_mask(dd, AES_REG_MASK(dd), 0, mask); } -static struct omap_aes_dev *omap_aes_find_dev(struct omap_aes_ctx *ctx) +static struct omap_aes_dev *omap_aes_find_dev(struct omap_aes_reqctx *rctx) { struct omap_aes_dev *dd; spin_lock_bh(&list_lock); dd = list_first_entry(&dev_list, struct omap_aes_dev, list); list_move_tail(&dd->list, &dev_list); - ctx->dd = dd; + rctx->dd = dd; spin_unlock_bh(&list_lock); return dd; @@ -400,12 +399,11 @@ static void sg_copy_buf(void *buf, struct scatterlist *sg, scatterwalk_done(&walk, out, 0); } -static int omap_aes_crypt_dma(struct crypto_tfm *tfm, - struct scatterlist *in_sg, struct scatterlist *out_sg, - int in_sg_len, int out_sg_len) +static int omap_aes_crypt_dma(struct omap_aes_dev *dd, + struct scatterlist *in_sg, + struct scatterlist *out_sg, + int in_sg_len, int out_sg_len) { - struct omap_aes_ctx *ctx = crypto_tfm_ctx(tfm); - struct omap_aes_dev *dd = ctx->dd; struct dma_async_tx_descriptor *tx_in, *tx_out; struct dma_slave_config cfg; int ret; @@ -483,8 +481,6 @@ static int omap_aes_crypt_dma(struct crypto_tfm *tfm, static int omap_aes_crypt_dma_start(struct omap_aes_dev *dd) { - struct crypto_tfm *tfm = crypto_ablkcipher_tfm( - crypto_ablkcipher_reqtfm(dd->req)); int err; pr_debug("total: %d\n", dd->total); @@ -505,7 +501,7 @@ static int omap_aes_crypt_dma_start(struct omap_aes_dev *dd) } } - err = omap_aes_crypt_dma(tfm, dd->in_sg, dd->out_sg, dd->in_sg_len, + err = omap_aes_crypt_dma(dd, dd->in_sg, dd->out_sg, dd->in_sg_len, dd->out_sg_len); if (err && !dd->pio_only) { dma_unmap_sg(dd->dev, dd->in_sg, dd->in_sg_len, DMA_TO_DEVICE); @@ -608,8 +604,8 @@ static int omap_aes_prepare_req(struct crypto_engine *engine, { struct omap_aes_ctx *ctx = crypto_ablkcipher_ctx( crypto_ablkcipher_reqtfm(req)); - struct omap_aes_dev *dd = ctx->dd; - struct omap_aes_reqctx *rctx; + struct omap_aes_reqctx *rctx = ablkcipher_request_ctx(req); + struct omap_aes_dev *dd = rctx->dd; if (!dd) return -ENODEV; @@ -638,13 +634,11 @@ static int omap_aes_prepare_req(struct crypto_engine *engine, dd->sgs_copied = 0; } - rctx = ablkcipher_request_ctx(req); - ctx = crypto_ablkcipher_ctx(crypto_ablkcipher_reqtfm(req)); rctx->mode &= FLAGS_MODE_MASK; dd->flags = (dd->flags & ~FLAGS_MODE_MASK) | rctx->mode; dd->ctx = ctx; - ctx->dd = dd; + rctx->dd = dd; return omap_aes_write_ctrl(dd); } @@ -652,9 +646,8 @@ static int omap_aes_prepare_req(struct crypto_engine *engine, static int omap_aes_crypt_req(struct crypto_engine *engine, struct ablkcipher_request *req) { - struct omap_aes_ctx *ctx = crypto_ablkcipher_ctx( - crypto_ablkcipher_reqtfm(req)); - struct omap_aes_dev *dd = ctx->dd; + struct omap_aes_reqctx *rctx = ablkcipher_request_ctx(req); + struct omap_aes_dev *dd = rctx->dd; if (!dd) return -ENODEV; @@ -725,7 +718,7 @@ static int omap_aes_crypt(struct ablkcipher_request *req, unsigned long mode) skcipher_request_zero(subreq); return ret; } - dd = omap_aes_find_dev(ctx); + dd = omap_aes_find_dev(rctx); if (!dd) return -ENODEV; |