linux-kernel - [RFC/PATCH 2.6.32.y 0/3] Re: [stable 2.6.32..2.6.34] x86, ioapic: initialize nr_ioapic_registers early in mp_register

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Message-ID: <20121024194114.GC3120@elie.Belkin>
Date:	Wed, 24 Oct 2012 12:41:14 -0700
From:	Jonathan Nieder <jrnieder@...il.com>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Greg KH <gregkh@...uxfoundation.org>, linbao.zhang@...com,
	"Eric W. Biederman" <ebiederm@...ssion.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>
Subject: [RFC/PATCH 2.6.32.y 0/3] Re: [stable 2.6.32..2.6.34] x86, ioapic:
 initialize nr_ioapic_registers early in mp_register_ioapic()

Suresh Siddha wrote:
> On Wed, 2012-10-24 at 11:25 -0700, Jonathan Nieder wrote:

>> Why not cherry-pick 7716a5c4ff5 in full?
>
> As that depends on the other commits like:
> commit 4b6b19a1c7302477653d799a53d48063dd53d555

More importantly, if I understand correctly it might depend on

 commit cf7500c0ea13
 Author: Eric W. Biederman <ebiederm@...ssion.com>
 Date:   Tue Mar 30 01:07:11 2010 -0700

     x86, ioapic: In mpparse use mp_register_ioapic

Here's a series, completely untested, that is closer to what I
expected.  But the approach you took seems reasonable, too, as long
as the commit message is tweaked to explain it.

Thanks again,
Jonathan

Eric W. Biederman (3):
  x86, ioapic: Teach mp_register_ioapic to compute a global gsi_end
  x86, ioapic: In mpparse use mp_register_ioapic
  x86, ioapic: Move nr_ioapic_registers calculation to
    mp_register_ioapic.

 arch/x86/include/asm/io_apic.h |  1 +
 arch/x86/kernel/apic/io_apic.c | 28 ++++++++++++++--------------
 arch/x86/kernel/mpparse.c      | 25 +------------------------
 arch/x86/kernel/sfi.c          |  4 +---
 4 files changed, 17 insertions(+), 41 deletions(-)
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