drm: omapdrm: gem: Mask out private flags passed from userspace

The 8 high order bits of the buffer flags are reserved for internal use.
Mask them out from the flags passed by userspace.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index 1e80b0243f9c9eda4cff3bdd70adb7b9f7087e0f..cc7905566228338c4a513a4e0cf1e9bce64ca645 100644 (file)
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -547,14 +547,19 @@ static int ioctl_set_param(struct drm_device *dev, void *data,
        return 0;
 }
 
+#define OMAP_BO_USER_MASK      0x00ffffff      /* flags settable by userspace */
+
 static int ioctl_gem_new(struct drm_device *dev, void *data,
                struct drm_file *file_priv)
 {
        struct drm_omap_gem_new *args = data;
+       u32 flags = args->flags & OMAP_BO_USER_MASK;
+
        VERB("%p:%p: size=0x%08x, flags=%08x", dev, file_priv,
-                       args->size.bytes, args->flags);
-       return omap_gem_new_handle(dev, file_priv, args->size,
-                       args->flags, &args->handle);
+            args->size.bytes, flags);
+
+       return omap_gem_new_handle(dev, file_priv, args->size, flags,
+                                  &args->handle);
 }
 
 static int ioctl_gem_cpu_prep(struct drm_device *dev, void *data,