From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Thu, 25 Mar 2010 16:32:49 +0000 (-0600)
Subject: PNPACPI: truncate _CRS windows with _LEN > _MAX - _MIN + 1
X-Git-Tag: v2.6.34-rc4~21^2^4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3162b6f0c5e1fcad372d64194fb3cb968941b428;p=pandora-kernel.git

PNPACPI: truncate _CRS windows with _LEN > _MAX - _MIN + 1

The ACPI spec (sec 6.4.3.5 in v4.0) requires that for Address Space Resource
Descriptors, _LEN <= _MAX - _MIN + 1 in all cases, but there are BIOSes that
violate this.  We experimentally determined that Windows truncates the
resource so it doesn't extend past _MAX, so let's do the same thing in
Linux.

http://bugzilla.kernel.org/show_bug.cgi?id=15480

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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