diff options
| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-03-04 16:47:12 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-04 14:09:50 +0100 |
| commit | aa714d286f2ea5fae3ca8c75acd03d8694fb657e (patch) | |
| tree | 211a52bfd23391fd288a3b2d8e40092a0ad1afab /arch/x86 | |
| parent | 63f1789ec71677dd285d43d6c79ca44808f16945 (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/x86')
0 files changed, 0 insertions, 0 deletions