powerpc/xics: xics.h relies on linux/interrupt.h

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/xics.h

@@ -6,6 +6,8 @@
 #ifndef _XICS_H
 #define _XICS_H
 
+#include <linux/interrupt.h>
+
 #define XICS_IPI		2
 #define XICS_IRQ_SPURIOUS	0