4 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 69681c3b1f0..c516382fbec 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -10,6 +10,7 @@
  */
 
 #include <linux/config.h>
+#include <asm/smp.h>		/* cpu_online_map */
 
 #if !defined(CONFIG_ARCH_S390)
 
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 0def328ab5c..9a424383e6c 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -54,6 +54,9 @@ struct memory_block {
  */
 #define	MEM_MAPPING_INVALID	(1<<3)
 
+struct notifier_block;
+struct mem_section;
+
 #ifndef CONFIG_MEMORY_HOTPLUG
 static inline int memory_dev_init(void)
 {
diff --git a/include/linux/sem.h b/include/linux/sem.h
index 106f9757339..3c1f1120fe8 100644
--- a/include/linux/sem.h
+++ b/include/linux/sem.h
@@ -79,6 +79,8 @@ struct  seminfo {
 
 #ifdef __KERNEL__
 
+struct task_struct;
+
 /* One semaphore structure for each semaphore in the system. */
 struct sem {
 	int	semval;		/* current value */
diff --git a/include/linux/wait.h b/include/linux/wait.h
index d38c9fecdc3..d28518236b6 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -54,6 +54,7 @@ struct __wait_queue_head {
 };
 typedef struct __wait_queue_head wait_queue_head_t;
 
+struct task_struct;
 
 /*
  * Macros for declaration and initialisaton of the datatypes