As claimed by the datasheet, writing 0 into the Control Register has no effet. So we remove this useless register access. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@xxxxxxxxx> --- drivers/crypto/atmel-aes.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c index 48407a7f6f61..f1ea9c893561 100644 --- a/drivers/crypto/atmel-aes.c +++ b/drivers/crypto/atmel-aes.c @@ -511,7 +511,7 @@ static int atmel_aes_crypt_dma_start(struct atmel_aes_dev *dd) static void atmel_aes_write_ctrl(struct atmel_aes_dev *dd, bool use_dma, const u32 *iv) { - u32 valcr = 0, valmr = 0; + u32 valmr = 0; /* MR register must be set before IV registers */ if (dd->ctx->keylen == AES_KEYSIZE_128) @@ -554,7 +554,6 @@ static void atmel_aes_write_ctrl(struct atmel_aes_dev *dd, bool use_dma, valmr |= AES_MR_SMOD_AUTO; } - atmel_aes_write(dd, AES_CR, valcr); atmel_aes_write(dd, AES_MR, valmr); atmel_aes_write_n(dd, AES_KEYWR(0), dd->ctx->key, -- 1.8.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html