On Sat, Jul 7, 2018 at 6:48 AM, <Mario.Limonciello@xxxxxxxx> wrote: >>I strongly advocate for vendors to have more control over their drivers, >>but this scenario really frustrates me. I don't think I can justify this >>to Linus as a fix. But before we just say "no" (because hey, I want >>these fixes available as early as possible too), let's ask Rafael if he >>has an opinion or if there is precedent for this in his experience with >>ACPI drivers in general: > > Full disclosure - an updated FW has since been rolled out that reverted this > behavior back to previous FW behavior due to lack of Linux support for the > new _DSM. There is desire to use the new interface (as it did fix actual > problems with the old one) so at some point it may return. When that happens > it would be ideal that people who are (for example) running an LTS kernel > or distro kernel that tracks stable can pick it up too. I am all for the better user experience and bugs especially in FW should be fixed, but I think to support all kind of behaviour the new FW release should always provide a knob by which we can check if some feature is supported or not. Above sounds to me as mistake in design of the fix. -- With Best Regards, Andy Shevchenko