Hi Maarten,
2016-01-27 Maarten Lankhorst <maarten.lankhorst at linux.intel.com>:
> Hey,
>
> Op 27-01-16 om 14:30 schreef Gustavo Padovan:
> > From: Gustavo Padovan <gustavo.padovan at collabora.co.uk>
> >
> > sync_file is useful to connect one or more fences to the file. The file is
> > used by userspace to track fences.
> >
> > Signed-off-by: Gustavo Padovan <gustavo.padovan at collabora.co.uk>
> >
> Is there a value in keeping the abi unchanged?
> If not, then Documentation/ioctl/botching-up-ioctls.txt is worth a read.
None from me. I'll look where we can improve the ABI.
>
> Looking at the patch, it seems you kept SYNC_IOC_WAIT, won't it be better to
> remove it, and only support waiting with polling?
> The code for polling should already work.
Sure, that makes sense for me.
>
> It's very unclear what format @driver_data has. I kept it for compatibility
> with android, but it's not clear to me how a userspace consumer would print
> it.
> Is there a usecase for this, or could it be removed from fence and sync_file?
I don't have any usecase for this. I'd say we remove it for now and if
someone needs this in the future we can talk about this again.
Gustavo
