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Subject[PATCH 2/8] ACPICA: Return u32 from acpi_dispatch_gpe()
Date
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

In some cases it is useful to know whether or not the
acpi_ev_detect_gpe() called by acpi_dispatch_gpe() has found
the GPE to be active, so return the return value of it (whose
data type is u32) from latter.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/acpica/evxfgpe.c | 6 +++---
include/acpi/acpixf.h | 8 +++++++-
2 files changed, 10 insertions(+), 4 deletions(-)

Index: linux-pm/drivers/acpi/acpica/evxfgpe.c
===================================================================
--- linux-pm.orig/drivers/acpi/acpica/evxfgpe.c
+++ linux-pm/drivers/acpi/acpica/evxfgpe.c
@@ -644,17 +644,17 @@ ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)
* PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
* gpe_number - GPE level within the GPE block
*
- * RETURN: None
+ * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
*
* DESCRIPTION: Detect and dispatch a General Purpose Event to either a function
* (e.g. EC) or method (e.g. _Lxx/_Exx) handler.
*
******************************************************************************/
-void acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number)
+u32 acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number)
{
ACPI_FUNCTION_TRACE(acpi_dispatch_gpe);

- acpi_ev_detect_gpe(gpe_device, NULL, gpe_number);
+ return acpi_ev_detect_gpe(gpe_device, NULL, gpe_number);
}

ACPI_EXPORT_SYMBOL(acpi_dispatch_gpe)
Index: linux-pm/include/acpi/acpixf.h
===================================================================
--- linux-pm.orig/include/acpi/acpixf.h
+++ linux-pm/include/acpi/acpixf.h
@@ -297,6 +297,9 @@ ACPI_GLOBAL(u8, acpi_gbl_system_awake_an
#define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
ACPI_EXTERNAL_RETURN_OK(prototype)

+#define ACPI_HW_DEPENDENT_RETURN_UINT32(prototype) \
+ ACPI_EXTERNAL_RETURN_UINT32(prototype)
+
#define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
ACPI_EXTERNAL_RETURN_VOID(prototype)

@@ -307,6 +310,9 @@ ACPI_GLOBAL(u8, acpi_gbl_system_awake_an
#define ACPI_HW_DEPENDENT_RETURN_OK(prototype) \
static ACPI_INLINE prototype {return(AE_OK);}

+#define ACPI_HW_DEPENDENT_RETURN_UINT32(prototype) \
+ static ACPI_INLINE prototype {return(0);}
+
#define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
static ACPI_INLINE prototype {return;}

@@ -738,7 +744,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_sta
u32 gpe_number,
acpi_event_status
*event_status))
-ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number))
+ACPI_HW_DEPENDENT_RETURN_UINT32(u32 acpi_dispatch_gpe(acpi_handle gpe_device, u32 gpe_number))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))


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