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the upcoming MPTCP PM netlink will require iproute support. 

mptcp PM netlink selftests can be used as a code reference/documentation for the relevant APIs

The following patches need to be backported:

7e0767cd862bb ("add support for mptcp netlink interface")
712fdd98c0839 ("ss: allow dumping MPTCP subflow information")
2d8b5fe93e9de ("man: mptcp man page")
02ade5a8ea1c2 ("Update kernel headers and import mptcp.h")
0c42c6b130196 ("man: ip.8: add reference to mptcp man-page")

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (iproute bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4478