According to Marc the original patch has already been applied by Dave.
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=473d924d7d46cb57aa4c1863261d18366af345af
Thanks for the support & sorry for the noise!
Best regards,
Oliver
On 30/07/2019 08.43, Oliver Hartkopp
Commit 60649d4e0af6c26b ("can: remove obsolete empty ioctl() handler") replaced
the almost empty can_ioctl() function with sock_no_ioctl() which always returns
-EOPNOTSUPP.
Even though we don't have any ioctl() functions on socket/network layer we need
to return -ENOIOCTLCMD to be able to forward
