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hc

2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd

 kernel/include/drm/drm_ioctl.h
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@@ -115,6 +115,9 @@
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 	 * Whether &drm_ioctl_desc.func should be called with the DRM BKL held
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 	 * or not. Enforced as the default for all modern drivers, hence there
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 	 * should never be a need to set this flag.
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+	 *
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+	 * Do not use anywhere else than for the VBLANK_WAIT IOCTL, which is the
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+	 * only legacy IOCTL which needs this.
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 	 */
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 	DRM_UNLOCKED		= BIT(4),
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 	/**