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| author | Andy Whitcroft | 2014-06-19 12:19:16 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki | 2014-07-07 22:11:09 +0200 |
| commit | 867f9d463b82462793ea4610e748be0b04b37fc7 (patch) | |
| tree | d27803622cfaf7145ba25fcc548b0b075f5bf25a /virt | |
| parent | Linux 3.16-rc4 (diff) | |
| download | kernel-qcow2-linux-867f9d463b82462793ea4610e748be0b04b37fc7.tar.gz kernel-qcow2-linux-867f9d463b82462793ea4610e748be0b04b37fc7.tar.xz kernel-qcow2-linux-867f9d463b82462793ea4610e748be0b04b37fc7.zip | |
ACPI / resources: only reject zero length resources based at address zero
The recently merged change (in v3.14-rc6) to ACPI resource detection
(below) causes all zero length ACPI resources to be elided from the
table:
commit b355cee88e3b1a193f0e9a81db810f6f83ad728b
Author: Zhang Rui <rui.zhang@intel.com>
Date: Thu Feb 27 11:37:15 2014 +0800
ACPI / resources: ignore invalid ACPI device resources
This change has caused a regression in (at least) serial port detection
for a number of machines (see LP#1313981 [1]). These seem to represent
their IO regions (presumably incorrectly) as a zero length region.
Reverting the above commit restores these serial devices.
Only elide zero length resources which lie at address 0.
Fixes: b355cee88e3b (ACPI / resources: ignore invalid ACPI device resources)
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Cc: 3.14+ <stable@vger.kernel.org> # 3.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions