[Intel-gfx] [PATCH 04/12] video/hmdi: Clear the whole incoming buffer, not just the infoframe size

[Damien Lespiau]

On Wed, Aug 07, 2013 at 01:56:58PM +0300, Ville Syrjälä wrote:
> On Tue, Aug 06, 2013 at 08:32:16PM +0100, Damien Lespiau wrote:
> > If the user if this API is providing a bigger buffer than the infoframe
> > size, it could be for a could reason. For instance it could be because
> > it gives the buffer that will be written to the hardware, up to the
> > maximum of an infoframe size.
> > 
> > Instead of just zeroing up to the infoframe size, let's zero the whole
> > incoming buffer as those extra bytes are also used to compute the
> > ECC and need to be 0.
> > 
> > Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
> 
> One concern that came to mind was someone needing to preserve the buffer
> contents beyond the infoframe. But I guess if someone really needs to
> do that, they can go and figure out the exact length of the infoframe
> and pass that.

Right, that was my thinking as well. We even have a macro for that now.

-- 
Damien