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authorLv Zheng <lv.zheng@intel.com>2014-05-12 15:46:38 +0800
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2015-09-18 13:35:16 +0200
commit4573e94d26d8bf0e21a2f5345f50f5b49fdf54b7 (patch)
treeb36f0fe1de1325459a6283d72cb0615fea237be1 /include
parentde550003ed9dd288cada7192bb123ae962856b26 (diff)
ACPICA: Linux headers: Add <asm/acenv.h> to remove mis-ordered inclusion of <asm/acpi.h>
There is a mis-order inclusion for <asm/acpi.h>. As we will enforce including <linux/acpi.h> for all Linux ACPI users, we can find the inclusion order is as follows: <linux/acpi.h> <acpi/acpi.h> <acpi/platform/acenv.h> (acenv.h before including aclinux.h) <acpi/platform/aclinux.h> ........................................................................... (aclinux.h before including asm/acpi.h) <asm/acpi.h> @Redundant@ (ACPICA specific stuff) ........................................................................... ........................................................................... (Linux ACPI specific stuff) ? - - - - - - - - - - - - + (aclinux.h after including asm/acpi.h) @Invisible@ | (acenv.h after including aclinux.h) @Invisible@ | other ACPICA headers @Invisible@ | ............................................................|.............. <acpi/acpi_bus.h> | <acpi/acpi_drivers.h> | <asm/acpi.h> (Excluded) | (Linux ACPI specific stuff) ! <- - - - - - - - - - - - - + NOTE that, in ACPICA, <acpi/platform/acenv.h> is more like Kconfig generated <generated/autoconf.h> for Linux, it is meant to be included before including any ACPICA code. In the above figure, there is a question mark for "Linux ACPI specific stuff" in <asm/acpi.h> which should be included after including all other ACPICA header files. Thus they really need to be moved to the position marked with exclaimation mark or the definitions in the blocks marked with "@Invisible@" will be invisible to such architecture specific "Linux ACPI specific stuff" header blocks. This leaves 2 issues: 1. All environmental definitions in these blocks should have a copy in the area marked with "@Redundant@" if they are required by the "Linux ACPI specific stuff". 2. We cannot use any ACPICA defined types in <asm/acpi.h>. This patch splits architecture specific ACPICA stuff from <asm/acpi.h> to fix this issue. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> (cherry picked from commit 07d8391433380fc72f999d99c554b1cfedea9778)
Diffstat (limited to 'include')
-rw-r--r--include/acpi/platform/aclinux.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index f34ce61a4ce6..934bbeb1d243 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -65,7 +65,7 @@
#ifdef EXPORT_ACPI_INTERFACES
#include <linux/export.h>
#endif
-#include <asm/acpi.h>
+#include <asm/acenv.h>
/* Host-dependent types and defines for in-kernel ACPICA */