Not used by any in-kernel driver. So drop it.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/drm_lock.c |   18 ------------------
 include/drm/drmP.h         |    3 ---
 2 files changed, 0 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index e2f70a5..566d203 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -134,12 +134,6 @@ int drm_lock(struct drm_device *dev, void *data, struct 
drm_file *file_priv)
                }
        }

-       if (dev->driver->kernel_context_switch &&
-           dev->last_context != lock->context) {
-               dev->driver->kernel_context_switch(dev, dev->last_context,
-                                                  lock->context);
-       }
-
        return 0;
 }

@@ -157,7 +151,6 @@ int drm_lock(struct drm_device *dev, void *data, struct 
drm_file *file_priv)
 int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
        struct drm_lock *lock = data;
-       struct drm_master *master = file_priv->master;

        if (lock->context == DRM_KERNEL_CONTEXT) {
                DRM_ERROR("Process %d using kernel context %d\n",
@@ -167,17 +160,6 @@ int drm_unlock(struct drm_device *dev, void *data, struct 
drm_file *file_priv)

        atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]);

-       /* kernel_context_switch isn't used by any of the x86 drm
-        * modules but is required by the Sparc driver.
-        */
-       if (dev->driver->kernel_context_switch_unlock)
-               dev->driver->kernel_context_switch_unlock(dev);
-       else {
-               if (drm_lock_free(&master->lock, lock->context)) {
-                       /* FIXME: Should really bail out here. */
-               }
-       }
-
        unblock_all_signals();
        return 0;
 }
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7809d23..15ea8c4 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -703,9 +703,6 @@ struct drm_driver {
        int (*dma_quiescent) (struct drm_device *);
        int (*context_ctor) (struct drm_device *dev, int context);
        int (*context_dtor) (struct drm_device *dev, int context);
-       int (*kernel_context_switch) (struct drm_device *dev, int old,
-                                     int new);
-       void (*kernel_context_switch_unlock) (struct drm_device *dev);

        /**
         * get_vblank_counter - get raw hardware vblank counter
-- 
1.7.1

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