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| author |   Bjorn Helgaas <bjorn.helgaas@hp.com> | 2009-03-24 16:50:09 -0600 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2009-03-27 12:51:16 -0400 |
| commit | 0e46517d9660ee6ae0a0c5d8a4e50451bc84d61d (patch) | |
| tree | 1ccbd9b77ad53f9b8b5de562d5d2adab08f55b43 /drivers/acpi | |
| parent | ACPI: call acpi_debug_init() explicitly rather than as initcall (diff) | |
| download | linux-dev-0e46517d9660ee6ae0a0c5d8a4e50451bc84d61d.tar.xz linux-dev-0e46517d9660ee6ae0a0c5d8a4e50451bc84d61d.zip | |
ACPI: call init_acpi_device_notify() explicitly rather than as initcall
This patch makes acpi_init() call init_acpi_device_notify() directly.
Previously, init_acpi_device_notify() was an arch_initcall (sequence 3),
so it was called before acpi_init() (a subsys_initcall at sequence 4).
init_acpi_device_notify() sets the platform_notify and
platform_notify_remove function pointers. These pointers
are not used until acpi_init() enumerates ACPI devices in
this path:
acpi_init()
acpi_scan_init()
acpi_bus_scan()
acpi_add_single_object()
acpi_device_register()
device_add()
<use platform_notify>
So it is sufficient to have acpi_init() call init_acpi_device_notify()
directly before it enumerates devices.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/bus.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/glue.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/internal.h | 1 |
3 files changed, 3 insertions, 5 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index f32cfd64c999..db9eca8d3cf2 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -855,6 +855,7 @@ static int __init acpi_init(void) acpi_kobj = NULL; } + init_acpi_device_notify(); result = acpi_bus_init(); if (!result) { diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 5479b9f42513..8bd2c2a6884d 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -286,10 +286,8 @@ static int acpi_platform_notify_remove(struct device *dev) return 0; } -static int __init init_acpi_device_notify(void) +int __init init_acpi_device_notify(void) { - if (acpi_disabled) - return 0; if (platform_notify || platform_notify_remove) { printk(KERN_ERR PREFIX "Can't use platform_notify\n"); return 0; @@ -298,5 +296,3 @@ static int __init init_acpi_device_notify(void) platform_notify_remove = acpi_platform_notify_remove; return 0; } - -arch_initcall(init_acpi_device_notify); diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 44b84021d84d..8a45dd8e03b5 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -1,5 +1,6 @@ /* For use by Linux/ACPI infrastructure, not drivers */ +int init_acpi_device_notify(void); int acpi_scan_init(void); int acpi_system_init(void); |