[Intel-gfx] [PATCH] uapi/drm/i915_drm.h: fix userspace compilation.

[Daniel Vetter]

On Wed, Sep 02, 2015 at 02:52:19PM +0300, Ville Syrjälä wrote:
> On Wed, Sep 02, 2015 at 01:41:18PM +0200, Artem Savkov wrote:
> > Patch "drm/i915: Use expcitly fixed type in compat32 structs" changed the type
> > of param field in drm_i915_getparam from int to s32. This header is exported to
> > userspace and needs to use userspace type __s32 instead.
> > 
> > This fixes userspace compilation errors like the following:
> > include/drm/i915_drm.h:361:2: error: unknown type name 's32'
> >   s32 param;
> > 
> > Signed-off-by: Artem Savkov <asavkov at redhat.com>
> > ---
> >  include/uapi/drm/i915_drm.h | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
> > index dbd16a2..fd5aa47 100644
> > --- a/include/uapi/drm/i915_drm.h
> > +++ b/include/uapi/drm/i915_drm.h
> > @@ -358,7 +358,7 @@ typedef struct drm_i915_irq_wait {
> >  #define I915_PARAM_HAS_RESOURCE_STREAMER 36
> >  
> >  typedef struct drm_i915_getparam {
> > -	s32 param;
> > +	__s32 param;
> 
> Hmm. I don't understand why this one in particular got changed to s32
> when there are other ioctl structs still using int.

Mostly me being incompetent.

Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch> on this one, not that
it seems to be worth much ...
-Daniel

> 
> >  	/*
> >  	 * WARNING: Using pointers instead of fixed-size u64 means we need to write
> >  	 * compat32 code. Don't repeat this mistake.
> > -- 
> > 2.1.0
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Ville Syrjälä
> Intel OTC
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch