[Bug 97344] intel_dp WARN_ON(!msg->buffer != !msg->size)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97344

Jani Nikula <jani.nikula at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|medium                      |high

--- Comment #1 from Jani Nikula <jani.nikula at intel.com> ---
So this will bisect to

commit dd788090822300a66ff469ae9e50f6d28d124eb8
Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
Date:   Thu Jul 28 17:55:04 2016 +0300

    drm/i915: Warn about aux msg buffer vs. size mismatch

but that commit just uncovers a pre-existing bug elsewhere.

The bug is lane count being 0 when we end up in link training. How that
happens, I don't know.

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