Comment # 2 on bug 1218283 from Dominik Heidler

Upstream hinted in the bug report that they try to reach out to the kernel
people but it could take months to change anything if it helps at all.

If I understood it correctly Upstream wrote in the referened issue that on x86
they have reimplemented some of the functionality on their own to prevent usage
of the GPL symbol. But this tool a lot of time and work.

Other distros (at lease some NixOS packagers commented on the issue) have
solved this particular issue by reverting the referenced patch in the kernel,
which shouldn't be a legal issue, as it is just restoring an already released
version of the code.