diff options
| author |   Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-12-05 09:53:58 +0000 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2019-12-11 16:46:22 +0800 |
| commit | 75eca7a7f2abe5fc317ec51408501a4c7e096ce8 (patch) | |
| tree | c90a06c446354e27c1c7c1c919eee3058e606661 /drivers/crypto/atmel-tdes.c | |
| parent | crypto: atmel-tdes - Map driver data flags to Mode Register (diff) | |
| download | linux-dev-75eca7a7f2abe5fc317ec51408501a4c7e096ce8.tar.xz linux-dev-75eca7a7f2abe5fc317ec51408501a4c7e096ce8.zip | |
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>
Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/atmel-tdes.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c index cc57339fa8f4..8a067c1dd455 100644 --- a/drivers/crypto/atmel-tdes.c +++ b/drivers/crypto/atmel-tdes.c @@ -384,11 +384,10 @@ static void atmel_tdes_buff_cleanup(struct atmel_tdes_dev *dd) free_page((unsigned long)dd->buf_in); } -static int atmel_tdes_crypt_pdc(struct crypto_tfm *tfm, dma_addr_t dma_addr_in, - dma_addr_t dma_addr_out, int length) +static int atmel_tdes_crypt_pdc(struct atmel_tdes_dev *dd, + dma_addr_t dma_addr_in, + dma_addr_t dma_addr_out, int length) { - struct atmel_tdes_ctx *ctx = crypto_tfm_ctx(tfm); - struct atmel_tdes_dev *dd = ctx->dd; struct atmel_tdes_reqctx *rctx = skcipher_request_ctx(dd->req); int len32; @@ -428,11 +427,10 @@ static int atmel_tdes_crypt_pdc(struct crypto_tfm *tfm, dma_addr_t dma_addr_in, return 0; } -static int atmel_tdes_crypt_dma(struct crypto_tfm *tfm, dma_addr_t dma_addr_in, - dma_addr_t dma_addr_out, int length) +static int atmel_tdes_crypt_dma(struct atmel_tdes_dev *dd, + dma_addr_t dma_addr_in, + dma_addr_t dma_addr_out, int length) { - struct atmel_tdes_ctx *ctx = crypto_tfm_ctx(tfm); - struct atmel_tdes_dev *dd = ctx->dd; struct atmel_tdes_reqctx *rctx = skcipher_request_ctx(dd->req); struct scatterlist sg[2]; struct dma_async_tx_descriptor *in_desc, *out_desc; @@ -501,8 +499,6 @@ static int atmel_tdes_crypt_dma(struct crypto_tfm *tfm, dma_addr_t dma_addr_in, static int atmel_tdes_crypt_start(struct atmel_tdes_dev *dd) { - struct crypto_tfm *tfm = crypto_skcipher_tfm( - crypto_skcipher_reqtfm(dd->req)); int err, fast = 0, in, out; size_t count; dma_addr_t addr_in, addr_out; @@ -558,9 +554,9 @@ static int atmel_tdes_crypt_start(struct atmel_tdes_dev *dd) dd->total -= count; if (dd->caps.has_dma) - err = atmel_tdes_crypt_dma(tfm, addr_in, addr_out, count); + err = atmel_tdes_crypt_dma(dd, addr_in, addr_out, count); else - err = atmel_tdes_crypt_pdc(tfm, addr_in, addr_out, count); + err = atmel_tdes_crypt_pdc(dd, addr_in, addr_out, count); if (err && (dd->flags & TDES_FLAGS_FAST)) { dma_unmap_sg(dd->dev, dd->in_sg, 1, DMA_TO_DEVICE); |