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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 09:45:58 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 09:45:58 -0800
commitf0f1b3364ae7f48084bdf2837fb979ff59622523 (patch)
treee5ef68c0071f44178cc8d1948b64e216d57422aa /drivers/acpi/bus.c
parent4383f18b7f94a4d668c5eec68645c75d44556235 (diff)
parentb7143156c9ceee1a072c57aac8729d2dec5b3bf1 (diff)
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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (112 commits) ACPI: fix build warning Revert "cpuidle: build fix for non-x86" ACPI: update intrd DSDT override console messages ACPI: update DSDT override documentation ACPI: Add "acpi_no_initrd_override" kernel parameter ACPI: its a directory not a folder.... ACPI: misc cleanups ACPI: add missing prink prefix strings ACPI: cleanup acpi.h ACPICA: fix CONFIG_ACPI_DEBUG_FUNC_TRACE build ACPI: video: Ignore ACPI video devices that aren't present in hardware ACPI: video: reset brightness on resume ACPI: video: call ACPI notifier chain for ACPI video notifications ACPI: create notifier chain to get hotkey events to graphics driver ACPI: video: delete unused display switch on hotkey event code ACPI: video: create "brightness_switch_enabled" modparam cpuidle: Add a poll_idle method ACPI: cpuidle: Support C1 idle time accounting ACPI: enable MWAIT for C1 idle ACPI: idle: Fix acpi_safe_halt usages and interrupt enabling/disabling ...
Diffstat (limited to 'drivers/acpi/bus.c')
-rw-r--r--drivers/acpi/bus.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 1b4cf98..8b0d4b7 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -122,6 +122,31 @@ int acpi_bus_get_status(struct acpi_device *device)
EXPORT_SYMBOL(acpi_bus_get_status);
+void acpi_bus_private_data_handler(acpi_handle handle,
+ u32 function, void *context)
+{
+ return;
+}
+EXPORT_SYMBOL(acpi_bus_private_data_handler);
+
+int acpi_bus_get_private_data(acpi_handle handle, void **data)
+{
+ acpi_status status = AE_OK;
+
+ if (!*data)
+ return -EINVAL;
+
+ status = acpi_get_data(handle, acpi_bus_private_data_handler, data);
+ if (ACPI_FAILURE(status) || !*data) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
+ handle));
+ return -ENODEV;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(acpi_bus_get_private_data);
+
/* --------------------------------------------------------------------------
Power Management
-------------------------------------------------------------------------- */
@@ -366,7 +391,6 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
return 0;
}
-EXPORT_SYMBOL(acpi_bus_receive_event);
#endif /* CONFIG_ACPI_PROC_EVENT */
/* --------------------------------------------------------------------------