From: Andi Kleen <ak@linux.intel.com>
Date: Mon, 8 Nov 2010 21:20:29 +0000 (+0100)
Subject: x86: Address gcc4.6 "set but not used" warnings in apic.h
X-Git-Tag: v2.6.37-rc2~31^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0059b2436a86fedb2747f654f8e10a67e97d8614;p=pandora-kernel.git

x86: Address gcc4.6 "set but not used" warnings in apic.h

native_apic_msr_read() and x2apic_enabled() use rdmsr(msr, low, high),
but only use the low part.

gcc4.6 complains about this:
.../apic.h:144:11: warning: variable 'high' set but not used [-Wunused-but-set-variable]

rdmsr() is just a wrapper around rdmsrl() which splits the 64bit value
into low and high, so using rdmsrl() directly solves this.

[tglx: Changed the variables to u64 as suggested by Cyrill. It's less
       confusing and has no code impact as this is 64bit only anyway.
       Massaged changelog as well. ]

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: x86@kernel.org
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
LKML-Reference: <1289251229-19589-1-git-send-email-andi@firstfloor.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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