From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

  CC      init/initramfs.o
init/initramfs.c:517: warning: 'clean_rootfs' defined but not used

clean_rootfs is not used when CONFIG_BLK_DEV_RAM disabled.

(akpm: fixes "fastboot: remove duplicate unpack_to_rootfs()")

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Cc: Shaohua Li <shaohua.li@intel.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 init/initramfs.c |    2 ++
 1 file changed, 2 insertions(+)

diff -puN init/initramfs.c~initramfs-fix-compilation-warning init/initramfs.c
--- a/init/initramfs.c~initramfs-fix-compilation-warning
+++ a/init/initramfs.c
@@ -512,6 +512,7 @@ skip:
 	initrd_end = 0;
 }
 
+#ifdef CONFIG_BLK_DEV_RAM
 #define BUF_SIZE 1024
 static void __init clean_rootfs(void)
 {
@@ -558,6 +559,7 @@ static void __init clean_rootfs(void)
 	sys_close(fd);
 	kfree(buf);
 }
+#endif
 
 static int __init populate_rootfs(void)
 {
_