Re: [PATCH 06/12] video/hdmi: Derive the bar data valid bit from the bar data fields

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On Thu, Aug 15, 2013 at 04:45:56PM +0200, Thierry Reding wrote:
> On Wed, Aug 14, 2013 at 06:19:09PM +0100, Damien Lespiau wrote:
> > Just like:
> > 
> >   Author: Damien Lespiau <damien.lespiau@xxxxxxxxx>
> >   Date:   Mon Aug 12 11:53:24 2013 +0100
> > 
> >       video/hdmi: Don't let the user of this API create invalid infoframes
> > 
> > But this time for the horizontal/vertical bar data present bits.
> > 
> > Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
> > Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > ---
> >  drivers/video/hdmi.c | 5 +++--
> >  include/linux/hdmi.h | 2 --
> >  2 files changed, 3 insertions(+), 4 deletions(-)
> 
> Same comments as for patch 5. Although I begin to see some sense in
> this. Perhaps not exposing these boolean fields is a good idea after
> all. I wonder if we're excluding some particular use-case by not
> exposing these fields.

Right, so I included patch 5/6 to the v4 of the series, putting
preventing someone from generating invalid infoframes before the
hypothetical use-case where we want the detail of the fields.

We are, de-facto, excluding the case where we'd want to have _unpack()
variants decoding infoframes, but that would only be useful if we wanted
to check the validity of infoframes in the kernel for instance. I think
it's unlikely we'd like to do that. It's also straightforward to revert
the 2 patches if/when that happens.

-- 
Damien
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