From: <Tudor.Ambarus@microchip.com>
To: <salah.triki@gmail.com>, <herbert@gondor.apana.org.au>,
<davem@davemloft.net>, <Nicolas.Ferre@microchip.com>,
<alexandre.belloni@bootlin.com>,
<Ludovic.Desroches@microchip.com>, <gregkh@linuxfoundation.org>
Cc: <linux-crypto@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [RESEND] crypto: atmel-aes: use swap()
Date: Fri, 23 Jul 2021 04:24:56 +0000 [thread overview]
Message-ID: <e0c89ce0-4f69-0a2d-0e1c-a730864b38cb@microchip.com> (raw)
In-Reply-To: <20210722170827.GA4362@pc>
On 7/22/21 8:08 PM, Salah Triki wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Use swap() instead of implementing it in order to make code more clean.
>
> Signed-off-by: Salah Triki <salah.triki@gmail.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
> ---
> drivers/crypto/atmel-aes.c | 8 ++------
> 1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
> index b1d286004295..60041022c4f5 100644
> --- a/drivers/crypto/atmel-aes.c
> +++ b/drivers/crypto/atmel-aes.c
> @@ -1819,12 +1819,8 @@ static int atmel_aes_xts_process_data(struct atmel_aes_dev *dd)
> * the order of the ciphered tweak bytes need to be reversed before
> * writing them into the ODATARx registers.
> */
> - for (i = 0; i < AES_BLOCK_SIZE/2; ++i) {
> - u8 tmp = tweak_bytes[AES_BLOCK_SIZE - 1 - i];
> -
> - tweak_bytes[AES_BLOCK_SIZE - 1 - i] = tweak_bytes[i];
> - tweak_bytes[i] = tmp;
> - }
> + for (i = 0; i < AES_BLOCK_SIZE/2; ++i)
> + swap(tweak_bytes[i], tweak_bytes[AES_BLOCK_SIZE - 1 - i]);
>
> /* Process the data. */
> atmel_aes_write_ctrl(dd, use_dma, NULL);
> --
> 2.25.1
>
next prev parent reply other threads:[~2021-07-23 4:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-22 17:08 [RESEND] crypto: atmel-aes: use swap() Salah Triki
2021-07-23 4:24 ` Tudor.Ambarus [this message]
2021-07-23 4:31 ` Tudor.Ambarus
2021-07-30 3:11 ` Herbert Xu
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