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| author | Lv Zheng <lv.zheng@intel.com> | 2014-04-30 10:05:15 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-05-07 00:55:01 +0200 |
| commit | 42873a84a22f6ee089b720c817bb61aebeff6e0d (patch) | |
| tree | 00ac8126620c279df6006fa489bd65dd8f99d7b4 /include/acpi/platform/aclinux.h | |
| parent | 8b9c1152a018883f6f0b841e12e17671f2c64c32 (diff) | |
| download | lwn-42873a84a22f6ee089b720c817bb61aebeff6e0d.tar.gz lwn-42873a84a22f6ee089b720c817bb61aebeff6e0d.zip | |
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/platform/aclinux.h')
| -rw-r--r-- | include/acpi/platform/aclinux.h | 31 |
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 |