No one ever waits on this waitqueue, so the wake_up call is wasted. Remove it all.
Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/drm_context.c | 1 - drivers/gpu/drm/drm_fops.c | 1 - include/drm/drmP.h | 1 - 3 files changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c index 6f9731f..5cc17f3 100644 --- a/drivers/gpu/drm/drm_context.c +++ b/drivers/gpu/drm/drm_context.c @@ -261,7 +261,6 @@ static int drm_context_switch_complete(struct drm_device *dev, when the kernel holds the lock, release that lock here. */ clear_bit(0, &dev->context_flag); - wake_up(&dev->context_wait);
return 0; } diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 3a24385..0dcbbdb 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -81,7 +81,6 @@ static int drm_setup(struct drm_device * dev) dev->last_context = 0; dev->last_switch = 0; dev->last_checked = 0; - init_waitqueue_head(&dev->context_wait); dev->if_version = 0;
dev->ctx_start = 0; diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 523e5f2..4499133 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1133,7 +1133,6 @@ struct drm_device { __volatile__ long context_flag; /**< Context swapping flag */ __volatile__ long interrupt_flag; /**< Interruption handler flag */ __volatile__ long dma_flag; /**< DMA dispatch flag */ - wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */ int last_checked; /**< Last context checked for DMA */ int last_context; /**< Last current context */ unsigned long last_switch; /**< jiffies at last context switch */