From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Mon, 21 Sep 2009 19:29:56 +0000 (+0000)
Subject: ACPI: use acpi_walk_namespace() to enumerate devices
X-Git-Tag: v2.6.32-rc1~18^2~2^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51a85faf2d4ffecd8384b3f501f9f7ee2b05ee53;p=pandora-kernel.git

ACPI: use acpi_walk_namespace() to enumerate devices

acpi_bus_scan() currently walks the namespace manually.  This patch changes
it to use acpi_walk_namespace() instead.

Besides removing some complicated code, this means we take advantage of the
namespace locking done by acpi_walk_namespace().  The locking isn't so
important at boot-time, but I hope to eventually use this same path to
handle hot-addition of devices, when it will be important.

Note that acpi_walk_namespace() does not actually visit the starting node
first, so we need to do that by hand first.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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