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ACPI: Add support to force header inclusion rules for <acpi/acpi.h>.

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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 <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Lv Zheng 2014-07-16 16:58:53 +08:00 • committed by Rafael J. Wysocki
commit 417b4a73b6
2 changed files with 11 additions and 1 deletions
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10
include/acpi/platform/aclinux.h
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@ -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