I pushed the first 6 patches of this series as
c05a78739de9ad2ca2ea97c5899d9b73fca620ea

I've had to amend the commit of the 4.19 kernel series to 4.19.324
because it had the wrong commit hashes. It's building on the
'kernel-updates' branch.

The problem was that I fetched release artifacts for 4.19.234, not
4.19.324. Oops!

Updated patch attached