From 615ed0e9f00a9c210213f4b77d5d9872314e0041 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Tue, 26 Oct 2010 10:06:54 +0800 Subject: [PATCH] ACPI: install ACPI table handler before any dynamic tables being loaded commit b1d248d96c71665c79befb81207f38f894c7c082 upstream. ACPI table sysfs I/F is broken by commit 78f1699659963fff97975df44db6d5dbe7218e55 Author: Alex Chiang 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 CC: Alex Chiang Signed-off-by: Zhang Rui Signed-off-by: Len Brown Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/bus.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) 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(); -- 2.39.2