Comment 1 for bug 1860972

Looking up this git commit in bionic master tells me that it is already in:
$ git log --oneline --grep "s390/qeth: report 25Gbit link speed"
9344fbf s390/qeth: report 25Gbit link speed

And it's in since Ubuntu kernel 4.15.0-48.51 (and newer):
$ git tag --contains 9344fbf
Ubuntu-4.15.0-48.51

So it's in since quite some time, since we are today at 4.15.0.74:
 linux-generic | 4.15.0.20.23 | bionic | s390x
 linux-generic | 4.15.0.74.76 | bionic-security | s390x
 linux-generic | 4.15.0.74.76 | bionic-updates | s390x
 linux-generic | 4.15.0.76.78 | bionic-proposed | s390x

According to the git log it was picked up by bionic's 18.04 kernel with LP 1814892
https://bugs.launchpad.net/bugs/1814892

Hence closing this ticket as Fix Released.