crypto: atmel-tdes - Drop unnecessary passing of tfm
atmel_tdes_crypt_start() obtained a pointer to tfm from dd, passed the tfm pointer to atmel_tdes_crypt_{dma,pdc}, and in the calles we obtained dd back from the tfm. Pass pointer to dd directly. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -384,11 +384,10 @@ static void atmel_tdes_buff_cleanup(struct atmel_tdes_dev *dd)
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free_page((unsigned long)dd->buf_in);
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}
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static int atmel_tdes_crypt_pdc(struct crypto_tfm *tfm, dma_addr_t dma_addr_in,
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dma_addr_t dma_addr_out, int length)
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static int atmel_tdes_crypt_pdc(struct atmel_tdes_dev *dd,
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dma_addr_t dma_addr_in,
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dma_addr_t dma_addr_out, int length)
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{
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struct atmel_tdes_ctx *ctx = crypto_tfm_ctx(tfm);
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struct atmel_tdes_dev *dd = ctx->dd;
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struct atmel_tdes_reqctx *rctx = skcipher_request_ctx(dd->req);
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int len32;
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@ -428,11 +427,10 @@ static int atmel_tdes_crypt_pdc(struct crypto_tfm *tfm, dma_addr_t dma_addr_in,
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return 0;
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}
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static int atmel_tdes_crypt_dma(struct crypto_tfm *tfm, dma_addr_t dma_addr_in,
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dma_addr_t dma_addr_out, int length)
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static int atmel_tdes_crypt_dma(struct atmel_tdes_dev *dd,
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dma_addr_t dma_addr_in,
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dma_addr_t dma_addr_out, int length)
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{
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struct atmel_tdes_ctx *ctx = crypto_tfm_ctx(tfm);
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struct atmel_tdes_dev *dd = ctx->dd;
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struct atmel_tdes_reqctx *rctx = skcipher_request_ctx(dd->req);
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struct scatterlist sg[2];
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struct dma_async_tx_descriptor *in_desc, *out_desc;
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@ -501,8 +499,6 @@ static int atmel_tdes_crypt_dma(struct crypto_tfm *tfm, dma_addr_t dma_addr_in,
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static int atmel_tdes_crypt_start(struct atmel_tdes_dev *dd)
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{
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struct crypto_tfm *tfm = crypto_skcipher_tfm(
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crypto_skcipher_reqtfm(dd->req));
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int err, fast = 0, in, out;
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size_t count;
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dma_addr_t addr_in, addr_out;
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@ -558,9 +554,9 @@ static int atmel_tdes_crypt_start(struct atmel_tdes_dev *dd)
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dd->total -= count;
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if (dd->caps.has_dma)
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err = atmel_tdes_crypt_dma(tfm, addr_in, addr_out, count);
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err = atmel_tdes_crypt_dma(dd, addr_in, addr_out, count);
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else
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err = atmel_tdes_crypt_pdc(tfm, addr_in, addr_out, count);
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err = atmel_tdes_crypt_pdc(dd, addr_in, addr_out, count);
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if (err && (dd->flags & TDES_FLAGS_FAST)) {
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dma_unmap_sg(dd->dev, dd->in_sg, 1, DMA_TO_DEVICE);
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