linux-kernel - [PATCH 1/7] ACPICA: Only include ACPI asm files if ACPI is enabled

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Message-Id: <1401883796-17841-2-git-send-email-lee.jones@linaro.org>
Date:	Wed,  4 Jun 2014 13:09:50 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	wsa@...-dreams.de, grant.likely@...aro.org,
	linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
	linus.walleij@...aro.org, Lee Jones <lee.jones@...aro.org>,
	Lv Zheng <lv.zheng@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	linux-acpi@...r.kernel.org, devel@...ica.org
Subject: [PATCH 1/7] ACPICA: Only include ACPI asm files if ACPI is enabled

Any drivers which support ACPI and Device Tree probing need to include
both respective header files.  Without this patch, if a driver is being
used on a platform which does not support ACPI and subsequently does not
have the config option enabled, but includes linux/acpi.h the build
breaks with:

  In file included from ../include/acpi/platform/acenv.h:150:0,
                   from ../include/acpi/acpi.h:56,
                   from ../include/linux/match.h:2,
                   from ../drivers/i2c/i2c-core.c:43:
  ../include/acpi/platform/aclinux.h:73:23:
   fatal error: asm/acenv.h: No such file or directory
   #include <asm/acenv.h>
                       ^
Cc: Lv Zheng <lv.zheng@...el.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Cc: linux-acpi@...r.kernel.org
Cc: devel@...ica.org
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 include/acpi/platform/aclinux.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index cd1f052..fdf7663 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -70,9 +70,10 @@
 #ifdef EXPORT_ACPI_INTERFACES
 #include <linux/export.h>
 #endif
-#include <asm/acenv.h>
 
-#ifndef CONFIG_ACPI
+#ifdef CONFIG_ACPI
+#include <asm/acenv.h>
+#else
 
 /* External globals for __KERNEL__, stubs is needed */
 
-- 
1.8.3.2

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