[Intel-gfx] [PATCH] drm/i915: lock around link status and link training.

[Daniel Vetter]

On Tue, Aug 5, 2014 at 2:40 AM, Dave Airlie <airlied at gmail.com> wrote:
> @@ -3502,10 +3505,13 @@ go_again:
>  void
>  intel_dp_check_link_status(struct intel_dp *intel_dp)
>  {
> +       struct drm_device *dev = intel_dp_to_dev(intel_dp);
>         struct intel_encoder *intel_encoder = &dp_to_dig_port(intel_dp)->base;
>         u8 sink_irq_vector;
>         u8 link_status[DP_LINK_STATUS_SIZE];
>
> +       WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
> +
>         /* FIXME: This access isn't protected by any locks. */

If you drop the FIXME here (since this patch address it) this is

Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>

I guess you'll pick this up directly to drm-next like that other mst
fixes?
-Daniel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch