[PATCH] MIPS: Export _machine_restart to modules

[zhanggenjian]

From: huhai <huhai@xxxxxxxxxx>

modpost complains once these drivers become modules.
  ERROR: modpost: "_machine_restart" [drivers/char/tb0219.ko] undefined!

Fix it by export them when that symbol is =m.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: huhai <huhai@xxxxxxxxxx>
---
 arch/mips/kernel/reset.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
index 6288780b779e..f3420a871087 100644
--- a/arch/mips/kernel/reset.c
+++ b/arch/mips/kernel/reset.c
@@ -24,6 +24,9 @@
  * functions.
  */
 void (*_machine_restart)(char *command);
+#ifdef CONFIG_GPIO_TB0219_MODULE
+EXPORT_SYMBOL_GPL(_machine_restart);
+#endif
 void (*_machine_halt)(void);
 void (*pm_power_off)(void);
 
-- 
2.27.0