Many thanks for the majority of these patches to Sasha Levin, who dug
them out of Canonical's 4.4 kernel tree. I have no idea why they never
sent them in for inclusion on their own :(
This is the start of the stable review cycle for the 4.4.21 release.
There are 192 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
Responses should be made by Wed Sep 14 15:21:31 UTC 2016.
Anything received after that time might be too late.