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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-05-30 00:58:09 +0200
committerDave Airlie <airlied@gmail.com>2012-07-17 22:05:48 +0200
commit29935554b384b1b3a7377d6f0b03b21d18a61683 (patch)
treea79b4e7322a46881bd38816ea153741f5c523e3c
parentMerge branch 'next' of git://people.freedesktop.org/~deathsimple/linux into d... (diff)
downloadlinux-29935554b384b1b3a7377d6f0b03b21d18a61683.tar.xz
linux-29935554b384b1b3a7377d6f0b03b21d18a61683.zip
drm: Disallow DRM_IOCTL_MODESET_CTL for KMS drivers
DRM_IOCTL_MODESET_CTL must only be used for UMS drivers. Make it a no-op for KMS drivers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Michel Dänzer <michel@daenzer.net> Signed-off-by: Dave Airlie <airlied@gmail.com>
-rw-r--r--drivers/gpu/drm/drm_irq.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index c798eeae0a03..03f16f352fe2 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -974,7 +974,6 @@ EXPORT_SYMBOL(drm_vblank_off);
* drm_vblank_pre_modeset - account for vblanks across mode sets
* @dev: DRM device
* @crtc: CRTC in question
- * @post: post or pre mode set?
*
* Account for vblank events across mode setting events, which will likely
* reset the hardware frame counter.
@@ -1037,6 +1036,10 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
if (!dev->num_crtcs)
return 0;
+ /* KMS drivers handle this internally */
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return 0;
+
crtc = modeset->crtc;
if (crtc >= dev->num_crtcs)
return -EINVAL;