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| author | Lv Zheng <lv.zheng@intel.com> | 2014-07-16 16:58:53 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-07-23 01:10:45 +0200 |
| commit | 417b4a73b62760db67512892c32f8acc008ab54e (patch) | |
| tree | 9729e9eb4c52db8d3df5d3c68ab1cbe84643790e | |
| parent | f997ea54479e85076873a70fe53e66c9153e6f00 (diff) | |
| download | linux-417b4a73b62760db67512892c32f8acc008ab54e.tar.bz2 | |
ACPI: Add support to force header inclusion rules for <acpi/acpi.h>.
As there is only CONFIG_ACPI=n processing in the <linux/acpi.h>, it is not
safe to include <acpi/acpi.h> directly for source out of Linux ACPI
subsystems.
This patch adds error messaging to warn developers of such wrong
inclusions.
In order not to be bisected and reverted as a wrong commit, warning
messages are carefully split into a seperate patch other than the wrong
inclusion cleanups.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/acpi/acpica/Makefile | 2 | ||||
| -rw-r--r-- | include/acpi/platform/aclinux.h | 10 |
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index 8bb43f06e11f..87a24ac21363 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -2,7 +2,7 @@ # Makefile for ACPICA Core interpreter # -ccflags-y := -Os +ccflags-y := -Os -DBUILDING_ACPICA ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT # use acpi.o to put all files here into acpi.o modparam namespace diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index dfba35476b8a..1ba7c190c2cc 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -44,6 +44,16 @@ #ifndef __ACLINUX_H__ #define __ACLINUX_H__ +#ifdef __KERNEL__ + +/* ACPICA external files should not include ACPICA headers directly. */ + +#if !defined(BUILDING_ACPICA) && !defined(_LINUX_ACPI_H) +#error "Please don't include <acpi/acpi.h> directly, include <linux/acpi.h> instead." +#endif + +#endif + /* Common (in-kernel/user-space) ACPICA configuration */ #define ACPI_USE_SYSTEM_CLIBRARY |