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authorShaohua Li <shaohua.li@intel.com>2008-08-28 10:04:29 +0800
committerLen Brown <len.brown@intel.com>2008-09-23 23:04:43 -0400
commit6bd00a61ab63d4ceb635ae0316353c11c900b8d8 (patch)
tree249e417279df1448f1ad43c135c22990b5dde2cb /include/acpi
parentdb350b084dc2cf816288643861ce07b0562dd723 (diff)
downloadlinux-6bd00a61ab63d4ceb635ae0316353c11c900b8d8.tar.bz2
ACPI: introduce notifier change to avoid duplicates
The battery driver already registers notification handler. To avoid registering notification handler again, introduce a notifier chain in global system notifier handler and use it in dock driver. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpi_bus.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index a5ac0bc7f52e..f74f882609f8 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -327,6 +327,9 @@ int acpi_bus_get_private_data(acpi_handle, void **);
extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
extern int register_acpi_notifier(struct notifier_block *);
extern int unregister_acpi_notifier(struct notifier_block *);
+
+extern int register_acpi_bus_notifier(struct notifier_block *nb);
+extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
/*
* External Functions
*/