diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 7690547ac2855aa39bd5370852c5a1038e6c80dc..35022dc104284b66e32728e1b6d03df3a29d5fd7 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -375,7 +375,7 @@ static void __init reserve_initrd(void)
 }
 #endif /* CONFIG_BLK_DEV_INITRD */
 
-void __init parse_setup_data(void)
+static void __init parse_setup_data(void)
 {
 	struct setup_data *data;
 	u64 pa_data;
@@ -417,7 +417,7 @@ static inline unsigned long long get_total_mem(void)
 	return total << PAGE_SHIFT;
 }
 
-void __init reserve_crashkernel(void)
+static void __init reserve_crashkernel(void)
 {
 	unsigned long long total_mem;
 	unsigned long long crash_size, crash_base;
@@ -453,7 +453,7 @@ void __init reserve_crashkernel(void)
 	}
 }
 #else
-void __init reserve_crashkernel(void)
+static void __init reserve_crashkernel(void)
 {
 }
 #endif
@@ -481,7 +481,7 @@ static struct resource standard_io_resources[] = {
 		.flags = IORESOURCE_BUSY | IORESOURCE_IO }
 };
 
-void __init reserve_standard_io_resources(void)
+static void __init reserve_standard_io_resources(void)
 {
 	int i;
 
diff --git a/include/asm-x86/bootparam.h b/include/asm-x86/bootparam.h
index 55ae9d0c4255cbd72f959ddaaf270f9fc655e8ff..6eeba3b2812b8b1b3196590f836da0c94f4ff7a7 100644
--- a/include/asm-x86/bootparam.h
+++ b/include/asm-x86/bootparam.h
@@ -109,6 +109,5 @@ struct boot_params {
 } __attribute__((packed));
 
 void reserve_setup_data(void);
-void parse_setup_data(void);
 
 #endif /* _ASM_BOOTPARAM_H */
diff --git a/include/asm-x86/setup.h b/include/asm-x86/setup.h
index bb12a1619c12ddc6fbf116d8f0ab1ee51f845265..269ba7fe21d1134ab47985d6ad882780adfe6592 100644
--- a/include/asm-x86/setup.h
+++ b/include/asm-x86/setup.h
@@ -8,9 +8,6 @@
 /* Interrupt control for vSMPowered x86_64 systems */
 void vsmp_init(void);
 
-/* Crashkernel reservation */
-void reserve_crashkernel(void);
-
 #ifndef CONFIG_PARAVIRT
 #define paravirt_post_allocator_init()	do {} while (0)
 #endif
@@ -38,8 +35,6 @@ void reserve_crashkernel(void);
 #ifndef __ASSEMBLY__
 #include <asm/bootparam.h>
 
-void reserve_standard_io_resources(void);
-
 #ifndef _SETUP
 
 /*