Commit b1d248d9 authored Oct 26, 2010 by Zhang Rui Committed by Len Brown Oct 26, 2010

ACPI: install ACPI table handler before any dynamic tables being loaded

ACPI table sysfs I/F is broken by commit

78f16996
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>

parent af48931c

drivers/acpi/bus.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -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();

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