Re: [PATCH] media: atomisp: stop compiling compat_ioctl32 code

From: Arnd Bergmann
Date: Wed Oct 07 2020 - 11:37:56 EST


On Wed, Oct 7, 2020 at 4:18 PM Christoph Hellwig <hch@xxxxxx> wrote:
>
> On Wed, Oct 07, 2020 at 04:16:39PM +0200, Arnd Bergmann wrote:
> > Alternatively, the entire file could just be removed, since anyone
> > willing to restore the functionality can equally well just look up
> > the contents in the git history if needed.
>
> I suspect that is the right thing. Note that given that the driver
> is only in staging anyway, the right thing to do would be to change
> the ioctl ABI to be more compat friendly to start with.

Ok, I sent that as v2 now.

I wonder how many of those 56 ioctl commands in the driver are
actually used in practice. Is there a public repository for the
matching user space? Is it required to even use the driver
or is it otherwise compatible with normal v4l2 applications?

Arnd