linux-kernel - Re: [PATCH v2] drm/stm: check pitch and size calculations even if !CONFIG

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Message-ID: <CA+M3ks4UYUA-2auOWF1iRcP8QB3sMb0+B6-nk1NUn29R1T_35Q@mail.gmail.com>
Date:   Fri, 23 Feb 2018 10:05:15 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...aro.org>
To:     Philippe CORNU <philippe.cornu@...com>
Cc:     Yannick FERTRE <yannick.fertre@...com>,
        Vincent ABRIOU <vincent.abriou@...com>,
        "laurent.pinchart@...asonboard.com" 
        <laurent.pinchart@...asonboard.com>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] drm/stm: check pitch and size calculations even if !CONFIG_MMU

2018-02-23 9:33 GMT+01:00 Philippe CORNU <philippe.cornu@...com>:
> Hi Benjamin,
>
> On 01/31/2018 09:05 AM, Benjamin Gaignard wrote:
>> In all cases we have to check pitch and size calculations to speed up
>> data transfer.
>>
>> Fixes: 21f815bf773c ("drm/stm: drv: Improve data transfers")
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...aro.org>
>> ---
>>   drivers/gpu/drm/stm/drv.c | 2 --
>>   1 file changed, 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c
>> index 8bc7e8418b8d..9ab00a87f7cc 100644
>> --- a/drivers/gpu/drm/stm/drv.c
>> +++ b/drivers/gpu/drm/stm/drv.c
>> @@ -35,7 +35,6 @@ static int stm_gem_cma_dumb_create(struct drm_file *file,
>>                                  struct drm_device *dev,
>>                                  struct drm_mode_create_dumb *args)
>>   {
>> -#ifdef CONFIG_MMU
>>       unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
>>
>>       /*
>> @@ -44,7 +43,6 @@ static int stm_gem_cma_dumb_create(struct drm_file *file,
>>        */
>>       args->pitch = roundup(min_pitch, 128);
>>       args->height = roundup(args->height, 4);
>> -#endif
>
> Reviewed-by: Philippe Cornu <philippe.cornu@...com>

Applied on drm-misc-next.

Regards,
Benjamin

>
> Many thanks,
> Philippe :-)
>
>>
>>       return drm_gem_cma_dumb_create_internal(file, dev, args);
>>   }
>>