Comment 0 for bug 1870320

This Bug tracks the necessary backport for the Linux Kernel
to enable proper reset/recovery of PCI Functions in the error state.
There is a related fix to s390-tools but the relevant zpcictl command
is not part of Ubuntu 18.04

Upstream this includes the following commits:

In the Kernel:

17cdec960cf776b20b1fb08c622221babe591d51 s390/pci: Recover handle in clp_set_pci_fn()
Backport patch attached.

576c75e36c689bec6a940e807bae27291ab0c0de s390/pci: Fix possible deadlock in recover_store()
applies cleanly but for the second a small backport change is necessary.

These fixes are already in 20.04 but need also be applied to 18.04.