From 431d2cd99f9721ad09f859dc65895f30385cc5c6 Mon Sep 17 00:00:00 2001
From: Arnaud Patard <arnaud.patard@rtp-net.org>
Date: Wed, 27 Dec 2006 22:56:44 +0100
Subject: [PATCH] [ARM] 4073/1: Prevent s3c24xx drivers from including
 asm/arch/hardware.h and asm/arch/irqs.h

As reminded in http://lkml.org/lkml/2006/12/23/26, one should use
asm/hardware.h and asm/irq.h but absent-minded devs like me tends to use
asm/arch/hardware.h and/or asm/arch/irqs.h.
This patch aims at preventing such things.

In order to make it work, I had to modify asm-arm/irq.h too so that it can
be included from assembly files.
Also, as a side effect, I had to modify some headers who were using the
asm/arch/hardware.h or asm/arch/irqs.h.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 include/asm-arm/arch-s3c2410/dma.h         | 2 +-
 include/asm-arm/arch-s3c2410/entry-macro.S | 2 +-
 include/asm-arm/arch-s3c2410/hardware.h    | 4 ++++
 include/asm-arm/arch-s3c2410/irqs.h        | 3 +++
 include/asm-arm/irq.h                      | 5 ++++-
 5 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h
index 7ac224836971..58ffa7ba3c88 100644
--- a/include/asm-arm/arch-s3c2410/dma.h
+++ b/include/asm-arm/arch-s3c2410/dma.h
@@ -14,7 +14,7 @@
 #define __ASM_ARCH_DMA_H __FILE__
 
 #include <linux/sysdev.h>
-#include "hardware.h"
+#include <asm/hardware.h>
 
 /*
  * This is the maximum DMA address(physical address) that can be DMAd to.
diff --git a/include/asm-arm/arch-s3c2410/entry-macro.S b/include/asm-arm/arch-s3c2410/entry-macro.S
index e09a6b8ec153..1eb4e6b8d249 100644
--- a/include/asm-arm/arch-s3c2410/entry-macro.S
+++ b/include/asm-arm/arch-s3c2410/entry-macro.S
@@ -20,7 +20,7 @@
 #define INTOFFSET	(0x14)
 
 #include <asm/hardware.h>
-#include <asm/arch/irqs.h>
+#include <asm/irq.h>
 
 	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
 
diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h
index 729565e5cdf4..6dadf58ff984 100644
--- a/include/asm-arm/arch-s3c2410/hardware.h
+++ b/include/asm-arm/arch-s3c2410/hardware.h
@@ -13,6 +13,10 @@
 #ifndef __ASM_ARCH_HARDWARE_H
 #define __ASM_ARCH_HARDWARE_H
 
+#ifndef __ASM_HARDWARE_H
+#error "Do not include this directly, instead #include <asm/hardware.h>"
+#endif
+
 #ifndef __ASSEMBLY__
 
 /* external functions for GPIO support
diff --git a/include/asm-arm/arch-s3c2410/irqs.h b/include/asm-arm/arch-s3c2410/irqs.h
index 39a69829d163..4b7cff456c4e 100644
--- a/include/asm-arm/arch-s3c2410/irqs.h
+++ b/include/asm-arm/arch-s3c2410/irqs.h
@@ -12,6 +12,9 @@
 #ifndef __ASM_ARCH_IRQS_H
 #define __ASM_ARCH_IRQS_H __FILE__
 
+#ifndef __ASM_ARM_IRQ_H
+#error "Do not include this directly, instead #include <asm/irq.h>"
+#endif
 
 /* we keep the first set of CPU IRQs out of the range of
  * the ISA space, so that the PC104 has them to itself
diff --git a/include/asm-arm/irq.h b/include/asm-arm/irq.h
index 283af50a16cb..1b882a255e35 100644
--- a/include/asm-arm/irq.h
+++ b/include/asm-arm/irq.h
@@ -19,7 +19,6 @@
 #define NO_IRQ	((unsigned int)(-1))
 #endif
 
-struct irqaction;
 
 /*
  * Migration helpers
@@ -37,6 +36,10 @@ struct irqaction;
 #define IRQT_HIGH	(__IRQT_HIGHLVL)
 #define IRQT_PROBE	IRQ_TYPE_PROBE
 
+#ifndef __ASSEMBLY__
+struct irqaction;
 extern void migrate_irqs(void);
 #endif
 
+#endif
+