I've fleshed out a potential way of tracking patches at: https://wiki.linaro.org/WorkingGroups/ToolChain/PatchTracking#Method%201
It's not too bad if you're a developer. The extra steps are: * Create a ticket * Mark that ticket as affecting upstream * Change the status as the patch evolves * Mark where the patch lands when finished
This is all done through Launchpad's existing interface.
Thoughts?
-- Michael