Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags

* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-irqflags:
  Fix IRQ flag handling naming
  MIPS: Add missing #inclusions of <linux/irq.h>
  smc91x: Add missing #inclusion of <linux/irq.h>
  Drop a couple of unnecessary asm/system.h inclusions
  SH: Add missing consts to sys_execve() declaration
  Blackfin: Rename IRQ flags handling functions
  Blackfin: Add missing dep to asm/irqflags.h
  Blackfin: Rename DES PC2() symbol to avoid collision
  Blackfin: Split the BF532 BFIN_*_FIO_FLAG() functions to their own header
  Blackfin: Split PLL code from mach-specific cdef headers

7 files changed, 92 insertions, 76 deletions

diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
index e53347fbf1da..fd57b8477fab 100644
--- a/include/asm-generic/atomic.h
+++ b/include/asm-generic/atomic.h
@@ -43,6 +43,7 @@
  */
 #define atomic_set(v, i) (((v)->counter) = (i))
 
+#include <linux/irqflags.h>
 #include <asm/system.h>
 
 /**
@@ -57,7 +58,7 @@ static inline int atomic_add_return(int i, atomic_t *v)
 	unsigned long flags;
 	int temp;
 
-	raw_local_irq_save(flags); /* Don't trace it in a irqsoff handler */
+	raw_local_irq_save(flags); /* Don't trace it in an irqsoff handler */
 	temp = v->counter;
 	temp += i;
 	v->counter = temp;
@@ -78,7 +79,7 @@ static inline int atomic_sub_return(int i, atomic_t *v)
 	unsigned long flags;
 	int temp;
 
-	raw_local_irq_save(flags); /* Don't trace it in a irqsoff handler */
+	raw_local_irq_save(flags); /* Don't trace it in an irqsoff handler */
 	temp = v->counter;
 	temp -= i;
 	v->counter = temp;
diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
index b2ba2fc8829a..2533fddd34a6 100644
--- a/include/asm-generic/cmpxchg-local.h
+++ b/include/asm-generic/cmpxchg-local.h
@@ -2,6 +2,7 @@
 #define __ASM_GENERIC_CMPXCHG_LOCAL_H
 
 #include <linux/types.h>
+#include <linux/irqflags.h>
 
 extern unsigned long wrong_size_cmpxchg(volatile void *ptr);
 
diff --git a/include/asm-generic/irqflags.h b/include/asm-generic/irqflags.h
index 9aebf618275a..1f40d0024cf3 100644
--- a/include/asm-generic/irqflags.h
+++ b/include/asm-generic/irqflags.h
@@ -5,68 +5,62 @@
  * All architectures should implement at least the first two functions,
  * usually inline assembly will be the best way.
  */
-#ifndef RAW_IRQ_DISABLED
-#define RAW_IRQ_DISABLED 0
-#define RAW_IRQ_ENABLED 1
+#ifndef ARCH_IRQ_DISABLED
+#define ARCH_IRQ_DISABLED 0
+#define ARCH_IRQ_ENABLED 1
 #endif
 
 /* read interrupt enabled status */
-#ifndef __raw_local_save_flags
-unsigned long __raw_local_save_flags(void);
+#ifndef arch_local_save_flags
+unsigned long arch_local_save_flags(void);
 #endif
 
 /* set interrupt enabled status */
-#ifndef raw_local_irq_restore
-void raw_local_irq_restore(unsigned long flags);
+#ifndef arch_local_irq_restore
+void arch_local_irq_restore(unsigned long flags);
 #endif
 
 /* get status and disable interrupts */
-#ifndef __raw_local_irq_save
-static inline unsigned long __raw_local_irq_save(void)
+#ifndef arch_local_irq_save
+static inline unsigned long arch_local_irq_save(void)
 {
 	unsigned long flags;
-	flags = __raw_local_save_flags();
-	raw_local_irq_restore(RAW_IRQ_DISABLED);
+	flags = arch_local_save_flags();
+	arch_local_irq_restore(ARCH_IRQ_DISABLED);
 	return flags;
 }
 #endif
 
 /* test flags */
-#ifndef raw_irqs_disabled_flags
-static inline int raw_irqs_disabled_flags(unsigned long flags)
+#ifndef arch_irqs_disabled_flags
+static inline int arch_irqs_disabled_flags(unsigned long flags)
 {
-	return flags == RAW_IRQ_DISABLED;
+	return flags == ARCH_IRQ_DISABLED;
 }
 #endif
 
 /* unconditionally enable interrupts */
-#ifndef raw_local_irq_enable
-static inline void raw_local_irq_enable(void)
+#ifndef arch_local_irq_enable
+static inline void arch_local_irq_enable(void)
 {
-	raw_local_irq_restore(RAW_IRQ_ENABLED);
+	arch_local_irq_restore(ARCH_IRQ_ENABLED);
 }
 #endif
 
 /* unconditionally disable interrupts */
-#ifndef raw_local_irq_disable
-static inline void raw_local_irq_disable(void)
+#ifndef arch_local_irq_disable
+static inline void arch_local_irq_disable(void)
 {
-	raw_local_irq_restore(RAW_IRQ_DISABLED);
+	arch_local_irq_restore(ARCH_IRQ_DISABLED);
 }
 #endif
 
 /* test hardware interrupt enable bit */
-#ifndef raw_irqs_disabled
-static inline int raw_irqs_disabled(void)
+#ifndef arch_irqs_disabled
+static inline int arch_irqs_disabled(void)
 {
-	return raw_irqs_disabled_flags(__raw_local_save_flags());
+	return arch_irqs_disabled_flags(arch_local_save_flags());
 }
 #endif
 
-#define raw_local_save_flags(flags) \
-	do { (flags) = __raw_local_save_flags(); } while (0)
-
-#define raw_local_irq_save(flags) \
-	do { (flags) = __raw_local_irq_save(); } while (0)
-
 #endif /* __ASM_GENERIC_IRQFLAGS_H */
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 96c323ac44df..8a389b608ce3 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -8,7 +8,6 @@
 #include <linux/lockdep.h>
 #include <linux/ftrace_irq.h>
 #include <asm/hardirq.h>
-#include <asm/system.h>
 
 /*
  * We put the hardirq and softirq counter into the preemption
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index 006bf45eae30..d176d658fe25 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -12,6 +12,7 @@
 #define _LINUX_TRACE_IRQFLAGS_H
 
 #include <linux/typecheck.h>
+#include <asm/irqflags.h>
 
 #ifdef CONFIG_TRACE_IRQFLAGS
   extern void trace_softirqs_on(unsigned long ip);
@@ -52,17 +53,45 @@
 # define start_critical_timings() do { } while (0)
 #endif
 
-#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
-
-#include <asm/irqflags.h>
+/*
+ * Wrap the arch provided IRQ routines to provide appropriate checks.
+ */
+#define raw_local_irq_disable()		arch_local_irq_disable()
+#define raw_local_irq_enable()		arch_local_irq_enable()
+#define raw_local_irq_save(flags)			\
+	do {						\
+		typecheck(unsigned long, flags);	\
+		flags = arch_local_irq_save();		\
+	} while (0)
+#define raw_local_irq_restore(flags)			\
+	do {						\
+		typecheck(unsigned long, flags);	\
+		arch_local_irq_restore(flags);		\
+	} while (0)
+#define raw_local_save_flags(flags)			\
+	do {						\
+		typecheck(unsigned long, flags);	\
+		flags = arch_local_save_flags();	\
+	} while (0)
+#define raw_irqs_disabled_flags(flags)			\
+	({						\
+		typecheck(unsigned long, flags);	\
+		arch_irqs_disabled_flags(flags);	\
+	})
+#define raw_irqs_disabled()		(arch_irqs_disabled())
+#define raw_safe_halt()			arch_safe_halt()
 
+/*
+ * The local_irq_*() APIs are equal to the raw_local_irq*()
+ * if !TRACE_IRQFLAGS.
+ */
+#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
 #define local_irq_enable() \
 	do { trace_hardirqs_on(); raw_local_irq_enable(); } while (0)
 #define local_irq_disable() \
 	do { raw_local_irq_disable(); trace_hardirqs_off(); } while (0)
 #define local_irq_save(flags)				\
 	do {						\
-		typecheck(unsigned long, flags);	\
 		raw_local_irq_save(flags);		\
 		trace_hardirqs_off();			\
 	} while (0)
@@ -70,7 +99,6 @@
 
 #define local_irq_restore(flags)			\
 	do {						\
-		typecheck(unsigned long, flags);	\
 		if (raw_irqs_disabled_flags(flags)) {	\
 			raw_local_irq_restore(flags);	\
 			trace_hardirqs_off();		\
@@ -79,51 +107,44 @@
 			raw_local_irq_restore(flags);	\
 		}					\
 	} while (0)
-#else /* !CONFIG_TRACE_IRQFLAGS_SUPPORT */
-/*
- * The local_irq_*() APIs are equal to the raw_local_irq*()
- * if !TRACE_IRQFLAGS.
- */
-# define raw_local_irq_disable()	local_irq_disable()
-# define raw_local_irq_enable()		local_irq_enable()
-# define raw_local_irq_save(flags)			\
-	do {						\
-		typecheck(unsigned long, flags);	\
-		local_irq_save(flags);			\
-	} while (0)
-# define raw_local_irq_restore(flags)			\
+#define local_save_flags(flags)				\
 	do {						\
-		typecheck(unsigned long, flags);	\
-		local_irq_restore(flags);		\
+		raw_local_save_flags(flags);		\
 	} while (0)
-#endif /* CONFIG_TRACE_IRQFLAGS_SUPPORT */
 
-#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
-#define safe_halt()						\
-	do {							\
-		trace_hardirqs_on();				\
-		raw_safe_halt();				\
-	} while (0)
+#define irqs_disabled_flags(flags)			\
+	({						\
+		raw_irqs_disabled_flags(flags);		\
+	})
 
-#define local_save_flags(flags)				\
-	do {						\
-		typecheck(unsigned long, flags);	\
-		raw_local_save_flags(flags);		\
+#define irqs_disabled()					\
+	({						\
+		unsigned long _flags;			\
+		raw_local_save_flags(_flags);		\
+		raw_irqs_disabled_flags(_flags);	\
+	})
+
+#define safe_halt()				\
+	do {					\
+		trace_hardirqs_on();		\
+		raw_safe_halt();		\
 	} while (0)
 
-#define irqs_disabled()						\
-({								\
-	unsigned long _flags;					\
-								\
-	raw_local_save_flags(_flags);				\
-	raw_irqs_disabled_flags(_flags);			\
-})
 
-#define irqs_disabled_flags(flags)		\
-({						\
-	typecheck(unsigned long, flags);	\
-	raw_irqs_disabled_flags(flags);		\
-})
+#else /* !CONFIG_TRACE_IRQFLAGS_SUPPORT */
+
+#define local_irq_enable()	do { raw_local_irq_enable(); } while (0)
+#define local_irq_disable()	do { raw_local_irq_disable(); } while (0)
+#define local_irq_save(flags)					\
+	do {							\
+		raw_local_irq_save(flags);			\
+	} while (0)
+#define local_irq_restore(flags) do { raw_local_irq_restore(flags); } while (0)
+#define local_save_flags(flags)	do { raw_local_save_flags(flags); } while (0)
+#define irqs_disabled()		(raw_irqs_disabled())
+#define irqs_disabled_flags(flags) (raw_irqs_disabled_flags(flags))
+#define safe_halt()		do { raw_safe_halt(); } while (0)
+
 #endif /* CONFIG_TRACE_IRQFLAGS_SUPPORT */
 
 #endif
diff --git a/include/linux/list.h b/include/linux/list.h
index d167b5d7c0ac..88a000617d77 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -5,7 +5,6 @@
 #include <linux/stddef.h>
 #include <linux/poison.h>
 #include <linux/prefetch.h>
-#include <asm/system.h>
 
 /*
  * Simple doubly linked list implementation.
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index f8854655860e..80e535897de6 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -50,6 +50,7 @@
 #include <linux/preempt.h>
 #include <linux/linkage.h>
 #include <linux/compiler.h>
+#include <linux/irqflags.h>
 #include <linux/thread_info.h>
 #include <linux/kernel.h>
 #include <linux/stringify.h>