drm: remove dev->last_switch

Only ever assigned in the context code for real, with no readers
anywhere. Remove it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>

2 files changed, 0 insertions, 2 deletions

diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
index 5cc17f32eb79..224ff965bcf7 100644
--- a/drivers/gpu/drm/drm_context.c
+++ b/drivers/gpu/drm/drm_context.c
@@ -251,7 +251,6 @@ static int drm_context_switch_complete(struct drm_device *dev,
                                        struct drm_file *file_priv, int new)
 {
         dev->last_context = new;        /* PRE/POST: This is the _only_ writer. */
-        dev->last_switch = jiffies;
 
         if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
                 DRM_ERROR("Lock isn't held after context switch\n");
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 0dcbbdb6f972..c14fdc1c109b 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -79,7 +79,6 @@ static int drm_setup(struct drm_device * dev)
         dev->interrupt_flag = 0;
         dev->dma_flag = 0;
         dev->last_context = 0;
-        dev->last_switch = 0;
         dev->last_checked = 0;
         dev->if_version = 0;