kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/drivers/gpu/drm/nouveau/nouveau_vga.c
..
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@@ -1,8 +1,7 @@
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-// SPDX-License-Identifier: GPL-2.0
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+// SPDX-License-Identifier: MIT
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 #include <linux/vgaarb.h>
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 #include <linux/vga_switcheroo.h>
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-#include <drm/drmP.h>
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 #include <drm/drm_crtc_helper.h>
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 #include <drm/drm_fb_helper.h>
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..
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@@ -73,7 +72,7 @@
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 	 * locking inversion with the driver load path. And the access here is
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 	 * completely racy anyway. So don't bother with locking for now.
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 	 */
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-	return dev->open_count == 0;
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+	return atomic_read(&dev->open_count) == 0;
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 }
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 static const struct vga_switcheroo_client_ops