--- /dev/null
+From ad70b029d2c678386384bd72c7fa2705c449b518 Mon Sep 17 00:00:00 2001
+From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+Date: Thu, 2 Jan 2014 12:58:53 -0800
+Subject: sh: add EXPORT_SYMBOL(min_low_pfn) and EXPORT_SYMBOL(max_low_pfn) to sh_ksyms_32.c
+
+From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+
+commit ad70b029d2c678386384bd72c7fa2705c449b518 upstream.
+
+Min_low_pfn and max_low_pfn were used in pfn_valid macro if defined
+CONFIG_FLATMEM. When the functions that use the pfn_valid is used in
+driver module, max_low_pfn and min_low_pfn is to undefined, and fail to
+build.
+
+ ERROR: "min_low_pfn" [drivers/block/aoe/aoe.ko] undefined!
+ ERROR: "max_low_pfn" [drivers/block/aoe/aoe.ko] undefined!
+ make[2]: *** [__modpost] Error 1
+ make[1]: *** [modules] Error 2
+
+This patch fix this problem.
+
+Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+Cc: Kuninori Morimoto <kuninori.morimoto.gx@gmail.com>
+Cc: Paul Mundt <lethal@linux-sh.org>
+Cc: Geert Uytterhoeven <geert@linux-m68k.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/sh/kernel/sh_ksyms_32.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/arch/sh/kernel/sh_ksyms_32.c
++++ b/arch/sh/kernel/sh_ksyms_32.c
+@@ -20,6 +20,11 @@ EXPORT_SYMBOL(csum_partial_copy_generic)
+ EXPORT_SYMBOL(copy_page);
+ EXPORT_SYMBOL(__clear_user);
+ EXPORT_SYMBOL(empty_zero_page);
++#ifdef CONFIG_FLATMEM
++/* need in pfn_valid macro */
++EXPORT_SYMBOL(min_low_pfn);
++EXPORT_SYMBOL(max_low_pfn);
++#endif
+
+ #define DECLARE_EXPORT(name) \
+ extern void name(void);EXPORT_SYMBOL(name)