Re: [PATCH] x86 APM: delete Linux kernel APM support
From: Len Brown
Date: Sat Mar 26 2011 - 00:36:27 EST
> > > > Beyond the lack of a upstream-visible feature-removal-schedule entry, we
> > > > still have an Arcnet driver which hardware was obsoleted by Ethernet in the
> > > > late 80s, and we still have i486 support and those are *much* older than
> > > > APM.
> > So how does your reasoning not apply to those drivers? There's several which
> > are older than APM support.
If we follow-through with the proposed cpuidle changes,
then we'll have to cut APM code. The problem isn't cutting
the code, it is testing it. I do have a couple of 15-year old
laptops which include APM support. However, with ACPI disabled
to enable APM, they don't even boot the upstream kernel today.
> > We had this really big battle about x86/Voyager two years ago, which x86
> > subarchitecture literally had just a single user left, and the code was more
> > intrusive than APM. Even there after much flaming the eventual consensus was
> > that we'd accept it back if it was done cleanly, as part of the new-style
> > x86_platform code.
> >
> > Given that APM fits into the current PM frameworks there's no such problem here
> > that i can see.
Somebody was pushing for Voyager support in the kernel
and was energetic about maintaining it.
cheers,
-Len
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