On Tue, Jun 13, 2017 at 08:38:57AM -0700, Darren Hart wrote: > On Tue, Jun 13, 2017 at 12:05:35AM -0700, Christoph Hellwig wrote: > > Hi Darren, > > > > first - can you please properly trim your replies and don't write > > more than 7 characters per line? > > Sure... (although I think you've done all the necessary pruning for this > response). 70 I presume you mean? I usually have tw set to 72... > apparently I dropped that setting at some point. Will correct. > > > > > On Mon, Jun 12, 2017 at 06:24:35PM -0700, Darren Hart wrote: > > > This is a big topic for sure. Speed and scale of platform enabling is something > > > I would like to see us support better. The barrier to entry to kernel > > > changes is high, especially for trivial things, like adding IDs, GUIDs, etc. > > > which would ideally, IMHO, be in the hands of the OEMs. > > > > It's not. It's a trivial patch, and you cover all Linux users. Very > > much unlike say the windows world where you are stuck with installing > > a vendor specific set of drivers forever. > > > > The patch is trivial, but the process is time consuming. Two to Three > months to see an ID added and released is big blocker for contemporary > life cycles. Wait, what? Please explain. Yes, it could take worse case 2-3 months to add a new device id, but does it really? I take new device ids up until 2 weeks before a -final kernel is released. And once they are in Linus's tree it's usually only a single week before they end up in all stable kernel releases. But that's upstream, no device ships with upstream, they ship a distro kernel. Look at the pre-installs from SuSE and Canonical, to get a new device id into their kernels takes what, a day or two? And that is what really matters as that is what goes out the door for their device. At least that is the process for when _I_ used to work on pre-installed Linux on devices, maybe things have gotten a lot worse since I left that business, but I would sure hope it wouldn't get magnitudes worse. So 2-3 months seems really long to me. thanks, greg k-h
