Re: [PATCH] crypto: ccp -A value assigned to a variable is never used.

From: John Allen
Date: Wed Mar 31 2021 - 16:01:07 EST


On Tue, Mar 30, 2021 at 06:10:29PM +0800, Jiapeng Chong wrote:
> Fix the following whitescan warning:
>
> Assigning value "64" to "dst.address" here, but that stored value is
> overwritten before it can be used.
>

Thanks for reporting.

Acked-by: John Allen <john.allen@xxxxxxx>

> Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
> ---
> drivers/crypto/ccp/ccp-ops.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
> index d6a8f4e..bb88198 100644
> --- a/drivers/crypto/ccp/ccp-ops.c
> +++ b/drivers/crypto/ccp/ccp-ops.c
> @@ -2418,7 +2418,6 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
> dst.address += CCP_ECC_OUTPUT_SIZE;
> ccp_reverse_get_dm_area(&dst, 0, ecc->u.pm.result.y, 0,
> CCP_ECC_MODULUS_BYTES);
> - dst.address += CCP_ECC_OUTPUT_SIZE;
>
> /* Restore the workarea address */
> dst.address = save;
> --
> 1.8.3.1
>