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authorLv Zheng <lv.zheng@intel.com>2014-04-30 10:05:15 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-05-07 00:55:01 +0200
commit42873a84a22f6ee089b720c817bb61aebeff6e0d (patch)
tree00ac8126620c279df6006fa489bd65dd8f99d7b4 /include/acpi
parent8b9c1152a018883f6f0b841e12e17671f2c64c32 (diff)
ACPICA: Linux header: Add support for stubbed externals.
Linux wants to include all header files but leave empty inline stub variables for a feature that is not configured during build. This patch configures ACPICA external globals/macros/functions out and defines them into no-op when CONFIG_ACPI is not enabled. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/platform/aclinux.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index f2429094b9b9..4c2f9e78001c 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -73,6 +73,37 @@
#endif
#include <asm/acpi.h>
+#ifndef CONFIG_ACPI
+
+/* External globals for __KERNEL__, stubs is needed */
+
+#define ACPI_GLOBAL(t,a)
+#define ACPI_INIT_GLOBAL(t,a,b)
+
+/* Generating stubs for configurable ACPICA macros */
+
+#define ACPI_NO_MEM_ALLOCATIONS
+
+/* Generating stubs for configurable ACPICA functions */
+
+#define ACPI_NO_ERROR_MESSAGES
+#undef ACPI_DEBUG_OUTPUT
+
+/* External interface for __KERNEL__, stub is needed */
+
+#define ACPI_EXTERNAL_RETURN_STATUS(prototype) \
+ static ACPI_INLINE prototype {return(AE_NOT_CONFIGURED);}
+#define ACPI_EXTERNAL_RETURN_OK(prototype) \
+ static ACPI_INLINE prototype {return(AE_OK);}
+#define ACPI_EXTERNAL_RETURN_VOID(prototype) \
+ static ACPI_INLINE prototype {return;}
+#define ACPI_EXTERNAL_RETURN_UINT32(prototype) \
+ static ACPI_INLINE prototype {return(0);}
+#define ACPI_EXTERNAL_RETURN_PTR(prototype) \
+ static ACPI_INLINE prototype {return(NULL);}
+
+#endif /* CONFIG_ACPI */
+
/* Host-dependent types and defines for in-kernel ACPICA */
#define ACPI_MACHINE_WIDTH BITS_PER_LONG