drm/vmgfx: kill off unused init_mutex (bcde7d34) · Commits · 戴 / test

According to the docs - prevents firstopen/lastclose races. Yet never used in practise. Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by:

Emil Velikov <emil.velikov@collabora.com> Reviewed-by:

Thomas Hellstrom <thellstrom@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190522164119.24139-2-emil.l.velikov@gmail.com

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -641,7 +641,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
		INIT_LIST_HEAD(&dev_priv->res_lru[i]);
		}

		mutex_init(&dev_priv->init_mutex);
		init_waitqueue_head(&dev_priv->fence_queue);
		init_waitqueue_head(&dev_priv->fifo_queue);
		dev_priv->fence_queue_waiters = 0;

drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

+0 −5

Original line number	Diff line number	Diff line
		@@ -484,11 +484,6 @@ struct vmw_private {

		spinlock_t resource_lock;
		struct idr res_idr[vmw_res_max];
		/*
		* Block lastclose from racing with firstopen.
		*/

		struct mutex init_mutex;

		/*
		* A resource manager for kernel-only surfaces and

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