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ACPI / hotplug / PCI: Hotplug notifications from acpi_bus_notify()

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Since acpi_bus_notify() is executed on all notifications for all
devices anyway, make it execute acpi_device_hotplug() for all
hotplug events instead of installing notify handlers pointing to
the same function for all hotplug devices.

This change reduces both the size and complexity of ACPI-based device
hotplug code.  Moreover, since acpi_device_hotplug() only does
significant things for devices that have either an ACPI scan handler,
or a hotplug context with .eject() defined, and those devices
had notify handlers pointing to acpi_hotplug_notify_cb() installed
before anyway, this modification shouldn't change functionality.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki
2014-02-06 13:58:13 +01:00
parent 5e6f236c26
commit 1a699476e2
6 changed files with 58 additions and 114 deletions
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2
include/acpi/acpi_bus.h
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@@ -446,8 +446,6 @@ static inline bool acpi_device_enumerated(struct acpi_device *adev)
typedef void (*acpi_hp_callback)(void *data, u32 src);
acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src);
void acpi_install_hotplug_notify_handler(acpi_handle handle);
void acpi_remove_hotplug_notify_handler(acpi_handle handle);
/**
* module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver