[Bug 106642] X server crashes in i965 on desktop startup when DRI3 v1.2 / modifier support is enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106642

Eero Tamminen <eero.t.tamminen at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch

--- Comment #1 from Eero Tamminen <eero.t.tamminen at intel.com> ---
(In reply to Eero Tamminen from comment #0)
> -------------------------------
> isl_format_supports_ccs_e(const struct gen_device_info *devinfo,
>                           enum isl_format format)
> {
>    if (!format_info[format].exists)
>       return false;
> -------------------------------

This:
-    if (!format_info[format].exists)
+    if (format == ISL_FORMAT_UNSUPPORTED || !format_info[format].exists)


Gets rid of the X server crashes both on BDW & SKL, so I assume it fixes the
issue also for the other machines.

However, I wonder whether also other isl_format_supports_* functions should
have guard for ISL_FORMAT_UNSUPPORTED...

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