More tk

discuss as desired.
The alternative probably more inline with other docs in the kernel repo would be "...combines all the products...", which IMO is much less explicit/descriptive.  `ps` is part of the function signature.  I have observed the pattern of referring func args by name in doc comments in the wild in various places, and I find it to be a fantastic pattern.  It removes ambiguity from what the docstring is talking about while also avoiding unnecessary redundancy.  "...combines the passed in resources..." - the person reading the api docs already can see that they pass in resources.