2c1983f75767765686e8308a5841c5c26b5a0348 is the first bad commit
commit 2c1983f75767765686e8308a5841c5c26b5a0348
Author: Jean Hertel <jean.hertel@hotmail.com>
Date:   Tue Sep 10 21:00:07 2019 +0200

    Fix missing dri2_load_driver on platform_drm

    Signed-off-by: Jean Hertel <jean.hertel@hotmail.com>
    Acked-by: Eric Engestrom <eric.engestrom@intel.com>
    Reviewed-by: Adam Jackson <ajax@redhat.com>

:040000 040000 68eb27c6af37ee1785727ffe2adeff029aa48021 6617668f5ed537b2ebe32700a378c4fdb34cfe1a M      src