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drm: kill dev->context_wait

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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>
Signed-off-by: Dave Airlie <airlied@gmail.com>
This commit is contained in:
Daniel Vetter 2013-07-10 14:11:36 +02:00 committed by Dave Airlie
parent 492d774db3
commit 3dadef6c96
3 changed files with 0 additions and 3 deletions
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1
drivers/gpu/drm/drm_context.c
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@ -261,7 +261,6 @@ static int drm_context_switch_complete(struct drm_device *dev,
when the kernel holds the lock, release when the kernel holds the lock, release
that lock here. */ that lock here. */
clear_bit(0, &dev->context_flag); clear_bit(0, &dev->context_flag);
wake_up(&dev->context_wait);
return 0; return 0;
} }

1
drivers/gpu/drm/drm_fops.c
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@ -81,7 +81,6 @@ static int drm_setup(struct drm_device * dev)
dev->last_context = 0; dev->last_context = 0;
dev->last_switch = 0; dev->last_switch = 0;
dev->last_checked = 0; dev->last_checked = 0;
init_waitqueue_head(&dev->context_wait);
dev->if_version = 0; dev->if_version = 0;
dev->ctx_start = 0; dev->ctx_start = 0;

1
include/drm/drmP.h
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@ -1133,7 +1133,6 @@ struct drm_device {
__volatile__ long context_flag; /**< Context swapping flag */ __volatile__ long context_flag; /**< Context swapping flag */
__volatile__ long interrupt_flag; /**< Interruption handler flag */ __volatile__ long interrupt_flag; /**< Interruption handler flag */
__volatile__ long dma_flag; /**< DMA dispatch 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_checked; /**< Last context checked for DMA */
int last_context; /**< Last current context */ int last_context; /**< Last current context */
unsigned long last_switch; /**< jiffies at last context switch */ unsigned long last_switch; /**< jiffies at last context switch */