On Sat, 09 Jun 2018 00:57:19 +0530, Shyam Saini said:
You always have option to test your hardware and report issues if any. If mainline breaks for your hardware then you can choose any known stable kernel version. You can patch and test it as per your needs.
If mainline breaks, you should at least make an attempt to either fix your driver, or call for help. If you drop back to a stable kernel and don't get the problem fixed, you're going to be stuck on that stable release (which is the single biggest reason you see so many boxes with wonky hardware that are still stuck on 3.12 or other ancient kernels - they have out-of-tree drivers that nobody ever bothered updating...) And of course, try to get your driver into the mainline kernel upstream. At that point, whenever somebody changes a kernel API, it's *their* job to fix anything in-tree that breaks - including your driver. If you are bothered by that and want some control over it, list yourself as the maintainer so patches get passed to you for putting into upstream.