This is a note to let you know that I've just added the patch titled
ACPI: install ACPI table handler before any dynamic tables being loaded
to the 2.6.36-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-install-acpi-table-handler-before-any-dynamic-tables-being-loaded.patch
and it can be found in the queue-2.6.36 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From b1d248d96c71665c79befb81207f38f894c7c082 Mon Sep 17 00:00:00 2001
From: Zhang Rui <[email protected]>
Date: Tue, 26 Oct 2010 10:06:54 +0800
Subject: ACPI: install ACPI table handler before any dynamic tables being loaded
From: Zhang Rui <[email protected]>
commit b1d248d96c71665c79befb81207f38f894c7c082 upstream.
ACPI table sysfs I/F is broken by commit
78f1699659963fff97975df44db6d5dbe7218e55
Author: Alex Chiang <[email protected]>
Date: Sun Dec 20 12:19:09 2009 -0700
ACPI: processor: call _PDC early
because dynamic SSDT tables may be loaded in _PDC,
before installing the ACPI table handler.
As a result, the sysfs I/F of these dynamic tables are
located at /sys/firmware/acpi/tables instead of
/sys/firmware/acpi/tables/dynamic, which is not true.
Invoke acpi_sysfs_init() before acpi_early_processor_set_pdc(),
so that the table handler is installed before any dynamic tables loaded.
https://bugzilla.kernel.org/show_bug.cgi?id=21142
CC: Dennis Jansen <[email protected]>
CC: Alex Chiang <[email protected]>
Signed-off-by: Zhang Rui <[email protected]>
Signed-off-by: Len Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/acpi/bus.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -935,6 +935,12 @@ static int __init acpi_bus_init(void)
goto error1;
}
+ /*
+ * _PDC control method may load dynamic SSDT tables,
+ * and we need to install the table handler before that.
+ */
+ acpi_sysfs_init();
+
acpi_early_processor_set_pdc();
/*
@@ -1026,7 +1032,6 @@ static int __init acpi_init(void)
acpi_scan_init();
acpi_ec_init();
acpi_power_init();
- acpi_sysfs_init();
acpi_debugfs_init();
acpi_sleep_proc_init();
acpi_wakeup_device_init();
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.36/acpi-cpufreq-fix-a-memleak-when-unloading-driver.patch
queue-2.6.36/acpi-battery-support-percentage-battery-remaining-capacity.patch
queue-2.6.36/acpi-install-acpi-table-handler-before-any-dynamic-tables-being-loaded.patch
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