linux-kernel - Re: [PATCH v5 05/13] media: atmel: atmel-sama5d2-isc: fix wrong mask in YUYV format check

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Message-ID: <20220223170653.z5frqap4wsvi3lsu@uno.localdomain>
Date:   Wed, 23 Feb 2022 18:06:53 +0100
From:   Jacopo Mondi <jacopo@...ndi.org>
To:     Eugen Hristev <eugen.hristev@...rochip.com>
Cc:     linux-media@...r.kernel.org, hverkuil-cisco@...all.nl,
        nicolas.ferre@...rochip.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        claudiu.beznea@...rochip.com
Subject: Re: [PATCH v5 05/13] media: atmel: atmel-sama5d2-isc: fix wrong mask
 in YUYV format check

Hi Eugen

On Thu, Feb 17, 2022 at 03:56:37PM +0200, Eugen Hristev wrote:
> While this does not happen in production, this check should be done
> versus the mask, as checking with the YCYC value may not include
> some bits that may be set.
> Is it correct and safe to check the whole mask.
>
> Fixes: 123aaf816b95 ("media: atmel: atmel-sama5d2-isc: fix YUYV format")
> Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>

I trust this
Reviewed-by: Jacopo Mondi <jacopo@...ndi.org>

Thanks
  j
> ---
>  drivers/media/platform/atmel/atmel-sama5d2-isc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
> index c244682ea22f..025c3e8a7e95 100644
> --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
> +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
> @@ -291,7 +291,7 @@ static void isc_sama5d2_config_rlp(struct isc_device *isc)
>  	 * Thus, if the YCYC mode is selected, replace it with the
>  	 * sama5d2-compliant mode which is YYCC .
>  	 */
> -	if ((rlp_mode & ISC_RLP_CFG_MODE_YCYC) == ISC_RLP_CFG_MODE_YCYC) {
> +	if ((rlp_mode & ISC_RLP_CFG_MODE_MASK) == ISC_RLP_CFG_MODE_YCYC) {
>  		rlp_mode &= ~ISC_RLP_CFG_MODE_MASK;
>  		rlp_mode |= ISC_RLP_CFG_MODE_YYCC;
>  	}
> --
> 2.25.1
>