diff --git a/include/linux/irq.h b/include/linux/irq.h
index 4669be0..a19b381 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -25,7 +25,7 @@
 #include <asm/irq_regs.h>
 
 struct irq_desc;
-typedef	void fastcall (*irq_flow_handler_t)(unsigned int irq,
+typedef	void (*irq_flow_handler_t)(unsigned int irq,
 					    struct irq_desc *desc);
 
 
@@ -276,19 +276,19 @@
  * Built-in IRQ handlers for various IRQ types,
  * callable via desc->chip->handle_irq()
  */
-extern void fastcall handle_level_irq(unsigned int irq, struct irq_desc *desc);
-extern void fastcall handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);
-extern void fastcall handle_edge_irq(unsigned int irq, struct irq_desc *desc);
-extern void fastcall handle_simple_irq(unsigned int irq, struct irq_desc *desc);
-extern void fastcall handle_percpu_irq(unsigned int irq, struct irq_desc *desc);
-extern void fastcall handle_bad_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_level_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
 
 /*
  * Monolithic do_IRQ implementation.
  * (is an explicit fastcall, because i386 4KSTACKS calls it from assembly)
  */
 #ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
-extern fastcall unsigned int __do_IRQ(unsigned int irq);
+extern unsigned int __do_IRQ(unsigned int irq);
 #endif
 
 /*
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 3344185..7d75196 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -133,7 +133,7 @@
 extern void oops_enter(void);
 extern void oops_exit(void);
 extern int oops_may_print(void);
-fastcall NORET_TYPE void do_exit(long error_code)
+NORET_TYPE void do_exit(long error_code)
 	ATTRIB_NORET;
 NORET_TYPE void complete_and_exit(struct completion *, long)
 	ATTRIB_NORET;
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 05c5903..bc6da10 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -112,7 +112,7 @@
  *
  * Returns 1 if the mutex is locked, 0 if unlocked.
  */
-static inline int fastcall mutex_is_locked(struct mutex *lock)
+static inline int mutex_is_locked(struct mutex *lock)
 {
 	return atomic_read(&lock->count) != 1;
 }
@@ -132,9 +132,9 @@
 #define mutex_lock_interruptible(lock) mutex_lock_interruptible_nested(lock, 0)
 #define mutex_lock_killable(lock) mutex_lock_killable_nested(lock, 0)
 #else
-extern void fastcall mutex_lock(struct mutex *lock);
-extern int __must_check fastcall mutex_lock_interruptible(struct mutex *lock);
-extern int __must_check fastcall mutex_lock_killable(struct mutex *lock);
+extern void mutex_lock(struct mutex *lock);
+extern int __must_check mutex_lock_interruptible(struct mutex *lock);
+extern int __must_check mutex_lock_killable(struct mutex *lock);
 
 # define mutex_lock_nested(lock, subclass) mutex_lock(lock)
 # define mutex_lock_interruptible_nested(lock, subclass) mutex_lock_interruptible(lock)
@@ -145,7 +145,7 @@
  * NOTE: mutex_trylock() follows the spin_trylock() convention,
  *       not the down_trylock() convention!
  */
-extern int fastcall mutex_trylock(struct mutex *lock);
-extern void fastcall mutex_unlock(struct mutex *lock);
+extern int mutex_trylock(struct mutex *lock);
+extern void mutex_unlock(struct mutex *lock);
 
 #endif
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 484988e..23f0c54 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -11,8 +11,8 @@
 #include <linux/list.h>
 
 #ifdef CONFIG_DEBUG_PREEMPT
-  extern void fastcall add_preempt_count(int val);
-  extern void fastcall sub_preempt_count(int val);
+  extern void add_preempt_count(int val);
+  extern void sub_preempt_count(int val);
 #else
 # define add_preempt_count(val)	do { preempt_count() += (val); } while (0)
 # define sub_preempt_count(val)	do { preempt_count() -= (val); } while (0)
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 1244497..576a5f7 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -71,7 +71,7 @@
 #define LOCK_SECTION_END                        \
         ".previous\n\t"
 
-#define __lockfunc fastcall __attribute__((section(".spinlock.text")))
+#define __lockfunc __attribute__((section(".spinlock.text")))
 
 /*
  * Pull the raw_spinlock_t and raw_rwlock_t definitions:
diff --git a/include/linux/timer.h b/include/linux/timer.h
index de0e713..ffe438a 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -35,8 +35,8 @@
 	struct timer_list _name =				\
 		TIMER_INITIALIZER(_function, _expires, _data)
 
-void fastcall init_timer(struct timer_list * timer);
-void fastcall init_timer_deferrable(struct timer_list *timer);
+void init_timer(struct timer_list *timer);
+void init_timer_deferrable(struct timer_list *timer);
 
 static inline void setup_timer(struct timer_list * timer,
 				void (*function)(unsigned long),