Comment # 2 on bug 1142128 from Mischa Salle

(In reply to Takashi Iwai from comment #1)
> Could you check whether the kernel-firmware package in OBS Kernel:HEAD repo
> still shows the same problem?  I guess yes, but need the confirmation.
> 
> Once when confirmed, I'm going to revert the corresponding firmware file, as
> well as reporting to upstream.

Sounds similar to
https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1836986