From 42873a84a22f6ee089b720c817bb61aebeff6e0d Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 30 Apr 2014 10:05:15 +0800 Subject: [PATCH] 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 Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- include/acpi/platform/aclinux.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) 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 +#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 -- 2.39.5