[PATCH] uninline irq_enter()

Uninline irq_enter().  [dynticks adds more stuff to it]

No functional changes.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/linux/hardirq.h

@@ -106,12 +106,7 @@ static inline void account_system_vtime(struct task_struct *tsk)
  * always balanced, so the interrupted value of ->hardirq_context
  * will always be restored.
  */
-#define irq_enter()					\
-	do {						\
-		account_system_vtime(current);		\
-		add_preempt_count(HARDIRQ_OFFSET);	\
-		trace_hardirq_enter();			\
-	} while (0)
+extern void irq_enter(void);
 
 /*
  * Exit irq context without processing softirqs:

kernel/softirq.c

@@ -273,6 +273,16 @@ EXPORT_SYMBOL(do_softirq);
 
 #endif
 
+/*
+ * Enter an interrupt context.
+ */
+void irq_enter(void)
+{
+	account_system_vtime(current);
+	add_preempt_count(HARDIRQ_OFFSET);
+	trace_hardirq_enter();
+}
+
 #ifdef __ARCH_IRQ_EXIT_IRQS_DISABLED
 # define invoke_softirq()	__do_softirq()
 #else