Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [Xen-devel] [GIT PULL] xen: features and fixes for 4.8-rc0 | Date | Thu, 28 Jul 2016 01:46:43 +0200 |
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On Wednesday, July 27, 2016 04:18:32 PM Linus Torvalds wrote: > On Wed, Jul 27, 2016 at 4:09 PM, Rafael J. Wysocki <rjw@rjwysocki.net> wrote: > > > > The STAO definition document: > > > > http://wiki.xenproject.org/mediawiki/images/0/02/Status-override-table.pdf > > > > requires as to "operate as if that device does not exist", quite literally. > > Well, first off, documentation is one thing, actually changing > behavior is something entirely different. > > Theory and practice are *not* the same.
Well, the STAO thing is totally new, so we have the documentation only ATM.
> The other worry I have is that I'd be happier if it's still visible in > /sys/bus/acpi/ etc. Again, it's one thing to not react to it > programmatically, and another thing entirely to actually hide the > information from the rest of the system. > > If I read that patch right, it will be hidden from sysfs too. But > Maybe I'm mistaken.
You're right.
Avoiding to enumerate it entirely is somewhat simpler, because it allows us to avoid some special casing in a few places IIRC.
I guess we can ask the author of the commit in question to come up with a patch to unhide that device and we'll see how that looks like.
Thanks, Rafael
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