Re: [PATCH] drm/i915: Fix logic fumble in rotation vs. ccs check

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On Tue, Sep 18, 2018 at 04:05:58PM +0100, Tvrtko Ursulin wrote:
> 
> On 18/09/2018 14:10, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > 
> > Smatch reports:
> > ../drivers/gpu/drm/i915/intel_sprite.c:1192 skl_plane_check_fb() warn: was || intended here instead of &&?
> > 
> > Obviously smatch is correct here since we're trying to check if we're
> > using either of the ccs modifiers. Since we now have is_ccs_modifier()
> > let's use it to fix this.
> > 
> > Cc: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> > Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
> > Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> > Fixes: e21c2d331018 ("drm/i915: Move skl plane fb related checks into a better place")
> > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > ---
> >   drivers/gpu/drm/i915/intel_sprite.c | 3 +--
> >   1 file changed, 1 insertion(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> > index 8821e59b70ea..d4c8e10fc90b 100644
> > --- a/drivers/gpu/drm/i915/intel_sprite.c
> > +++ b/drivers/gpu/drm/i915/intel_sprite.c
> > @@ -1190,8 +1190,7 @@ static int skl_plane_check_fb(const struct intel_crtc_state *crtc_state,
> >   		return 0;
> >   
> >   	if (rotation & ~(DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180) &&
> > -	    (fb->modifier == I915_FORMAT_MOD_Y_TILED_CCS &&
> > -	     fb->modifier == I915_FORMAT_MOD_Yf_TILED_CCS)) {
> > +	    is_ccs_modifier(fb->modifier)) {
> >   		DRM_DEBUG_KMS("RC support only with 0/180 degree rotation (%x)\n",
> >   			      rotation);
> >   		return -EINVAL;
> > 
> 
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> 
> Just a drive by on a trivial one. :)

Thanks. Pushed.

-- 
Ville Syrjälä
Intel
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