diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index f89df52683c5d92946d3f09b7a3e298949bdd6f6..cc7fe660f33d0c322ffc52dddfe0a4aecdadee4f 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -71,3 +71,10 @@ void free_initmem(void)
 			(unsigned long)(&__init_begin),
 			(unsigned long)(&__init_end));
 }
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+	free_init_pages("initrd memory", start, end);
+}
+#endif
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 37aeaf366d5fbc12609064ba93c1bb2483edde79..c69c6b1f5e555d3b3942bd93ed4496f81b2f7167 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -1275,13 +1275,6 @@ void mark_rodata_ro(void)
 }
 #endif
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_init_pages("initrd memory", start, end);
-}
-#endif
-
 int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
 				   int flags)
 {
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 074435e79824448928c54094c86fc3b64961c766..d325186dd32b4a45025354acd444dcd01b92bb9d 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -963,13 +963,6 @@ void mark_rodata_ro(void)
 
 #endif
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_init_pages("initrd memory", start, end);
-}
-#endif
-
 int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
 				   int flags)
 {