linux-kernel - Re: [PATCH] x86 APM: delete Linux kernel APM support

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Date:	Fri, 25 Mar 2011 11:41:54 -0400
From:	Calvin Walton <calvin.walton@...stin.ca>
To:	Len Brown <lenb@...nel.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Stephen Rothwell <sfr@...b.auug.org.au>, x86@...nel.org,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] x86 APM: delete Linux kernel APM support

On Thu, 2011-03-24 at 19:49 -0400, Len Brown wrote:
> > > Microsoft was able to delete APM from Windows in 2006
> > > with the release of Windows Vista. [...]
> > 
> > Does Windows XP still support it?
> 
> yes, and so does Red Hat Linux 9.

> > While i'm not a fan of APM at all, this removal is a tad fast IMHO.
> >
> > 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.
> 
> How would you like to write i486 specific code for the latest kernel
> and test it on i486 hardware, honestly?

Hmm, that reminds me: I should try a newer kernel on my 486 some time,
it's still running 2.6.25. I'm actually quite honestly surprised that
the modern libata drivers include code for and fully support my old
vesa-bus IDE controller! (X has been less friendly, they dropped support
for the graphics chipset during the Xfree86 4 development--but I mostly
use this box headless.)

-- 
Calvin Walton <calvin.walton@...stin.ca>

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