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| author | Zhang Rui <rui.zhang@intel.com> | 2010-10-26 10:06:54 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-10-26 04:55:29 -0400 |
| commit | b1d248d96c71665c79befb81207f38f894c7c082 (patch) | |
| tree | eab81c2786ace3ee0121cd8a0a18c53e7c940bd0 | |
| parent | af48931c4863ced64cc52c58757be6e254437f9a (diff) | |
| download | linux-3.10-b1d248d96c71665c79befb81207f38f894c7c082.tar.gz linux-3.10-b1d248d96c71665c79befb81207f38f894c7c082.tar.bz2 linux-3.10-b1d248d96c71665c79befb81207f38f894c7c082.zip | |
ACPI: install ACPI table handler before any dynamic tables being loaded
ACPI table sysfs I/F is broken by commit
78f1699659963fff97975df44db6d5dbe7218e55
Author: Alex Chiang <achiang@hp.com>
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 <dennis.jansen@web.de>
CC: Alex Chiang <achiang@hp.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/bus.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 310e3b9749c..d68bd61072b 100644 --- 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(); |