From: K.Prasad <prasad@linux.vnet.ibm.com>
Date: Thu, 28 Jan 2010 11:14:01 +0000 (+0530)
Subject: x86/debug: Clear reserved bits of DR6 in do_debug()
X-Git-Tag: v2.6.34-rc1~197^2~94
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40f9249a73f6c251adea492b1c3d19d39e2a9bda;p=pandora-kernel.git

x86/debug: Clear reserved bits of DR6 in do_debug()

Clear the reserved bits from the stored copy of debug status
register (DR6).
This will help easy bitwise operations such as quick testing
of a debug event origin.

Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20100128111401.GB13935@in.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---

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