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authorJiang Liu <jiang.liu@linux.intel.com>2015-03-04 16:47:12 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-03-04 14:09:50 +0100
commitaa714d286f2ea5fae3ca8c75acd03d8694fb657e (patch)
tree211a52bfd23391fd288a3b2d8e40092a0ad1afab /arch
parent63f1789ec71677dd285d43d6c79ca44808f16945 (diff)
x86/PCI/ACPI: Relax ACPI resource descriptor checks to work around BIOS bugs
Some BIOSes report incorrect length for ACPI address space descriptors, so relax the checks to avoid regressions. This issue has appeared several times as: 3162b6f0c5e1 ("PNPACPI: truncate _CRS windows with _LEN > _MAX - _MIN + 1") d558b483d5a7 ("x86/PCI: truncate _CRS windows with _LEN > _MAX - _MIN + 1") f238b414a74a ("PNPACPI: compute Address Space length rather than using _LEN") 48728e077480 ("x86/PCI: compute Address Space length rather than using _LEN") Please refer to https://bugzilla.kernel.org/show_bug.cgi?id=94221 for more details and example malformed ACPI resource descriptors. Link: https://bugzilla.kernel.org/show_bug.cgi?id=94221 Fixes: 593669c2ac0f (x86/PCI/ACPI: Use common ACPI resource interfaces ...) Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Tested-by: Dave Airlie <airlied@redhat.com> Tested-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch')
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