ARM: at91: generic.h: Add include safe guards

The generic.h header file doesn't have any safe guards against multiple
inclusion. It only worked so far because all the symbols defined in it were
extern, but this is a rather fragile assumption.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index f42b0490ad98e005e2036e00ccdb1b86c81d2890..31cba6d9aa61747c136763b8db580e4ec8965655 100644 (file)
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -8,6 +8,9 @@
  * published by the Free Software Foundation.
  */
 
+#ifndef _AT91_GENERIC_H
+#define _AT91_GENERIC_H
+
 #include <linux/clkdev.h>
 #include <linux/of.h>
 #include <linux/reboot.h>
@@ -84,3 +87,5 @@ extern int  __init at91_gpio_of_irq_setup(struct device_node *node,
                                          struct device_node *parent);
 
 extern u32 at91_get_extern_irq(void);
+
+#endif /* _AT91_GENERIC_H */