On Tue, Mar 20, 2018 at 09:01:11PM -0400, Rob Clark wrote:
> On Tue, Mar 20, 2018 at 6:58 PM, Daniel Stone <dani...@collabora.com> wrote:
> > getfb can only return a single plane, so reject attempts to use it with
> > multi-plane framebuffers.
> >
>
> yeah, this seems like a pretty good idea,
>
> Reviewed-by: Rob Clark <robdcl...@gmail.com>
>
> > Signed-off-by: Daniel Stone <dani...@collabora.com>
> > Reported-by: Daniel van Vugt <daniel.van.v...@canonical.com>
> > Fixes: 308e5bcbdb10 ("drm: add an fb creation ioctl that takes a pixel
> > format v5")
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105518
Cc: sta...@vger.kernel.org # v3.3+
Reviewed-by: Daniel Vetter <daniel.vet...@ffwll.ch>
Please push to drm-misc-fixes and poke Gustavo to do a pull so it's not
lost.
-Daniel
> > ---
> > drivers/gpu/drm/drm_framebuffer.c | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_framebuffer.c
> > b/drivers/gpu/drm/drm_framebuffer.c
> > index 7df025669067..ad67203de715 100644
> > --- a/drivers/gpu/drm/drm_framebuffer.c
> > +++ b/drivers/gpu/drm/drm_framebuffer.c
> > @@ -462,6 +462,12 @@ int drm_mode_getfb(struct drm_device *dev,
> > if (!fb)
> > return -ENOENT;
> >
> > + /* Multi-planar framebuffers need getfb2. */
> > + if (fb->format->num_planes > 1) {
> > + ret = -EINVAL;
> > + goto out;
> > + }
> > +
> > r->height = fb->height;
> > r->width = fb->width;
> > r->depth = fb->format->depth;
> > @@ -485,6 +491,7 @@ int drm_mode_getfb(struct drm_device *dev,
> > ret = -ENODEV;
> > }
> >
> > +out:
> > drm_framebuffer_put(fb);
> >
> > return ret;
> > --
> > 2.16.2
> >
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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