Re: [PATCH] [media] dib0700: get rid of on-stack dma buffers

From: Oliver Neukum
Date: Sun Mar 06 2011 - 07:11:48 EST


Am Sonntag, 6. März 2011, 12:16:52 schrieb Florian Mickler:
> This should fix warnings seen by some:
> WARNING: at lib/dma-debug.c:866 check_for_stack
>
> Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=15977.
> Reported-by: Zdenek Kabelac <zdenek.kabelac@xxxxxxxxx>
> Signed-off-by: Florian Mickler <florian@xxxxxxxxxxx>
> CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
> CC: linux-media@xxxxxxxxxxxxxxx
> CC: linux-kernel@xxxxxxxxxxxxxxx
> CC: Greg Kroah-Hartman <greg@xxxxxxxxx>
> CC: Rafael J. Wysocki <rjw@xxxxxxx>
> CC: Maciej Rutecki <maciej.rutecki@xxxxxxxxx>
> ---
>
> Please take a look at it, as I do not do that much kernel hacking
> and don't wanna brake anybodys computer... :)
>
> From my point of view this should _not_ go to stable even though it would
> be applicable. But if someone feels strongly about that and can
> take responsibility for that change...

The patch looks good and is needed in stable.
It could be improved by using a buffer allocated once in the places
you hold a mutex anyway.

Regards
Oliver
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