Re: [PATCH v2 1/2] solo6x10: Set FRAME_BUF_SIZE to 200KB

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On Wed, May 04, 2016 at 01:21:20PM -0300, Ismael Luceno wrote:
> From: Andrey Utkin <andrey.utkin@xxxxxxxxxxxxxxxxxxx>
> 
> Such frame size is met in practice. Also report oversized frames.
> 
> [ismael: Reworked warning and commit message]
> 
> Signed-off-by: Ismael Luceno <ismael@xxxxxxxxxxx>

I object against merging the first part.

> ---
>  drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
> index 67a14c4..f98017b 100644
> --- a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
> +++ b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
> @@ -33,7 +33,7 @@
>  #include "solo6x10-jpeg.h"
>  
>  #define MIN_VID_BUFFERS		2
> -#define FRAME_BUF_SIZE		(196 * 1024)
> +#define FRAME_BUF_SIZE		(200 * 1024)

Please don't push this.
It doesn't matter whether there are 196 or 200 KiB because there happen
bigger frames.
I don't remember details so I cannot point to all time max frame size.
AFAIK this issue appeared on one particular customer installation. I
don't monitor it closely right now. I think I have compiled custom
package for that setup with FRAME_BUF_SIZE increased much more (maybe
10x?).
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