--- zzzz-none-000/linux-3.10.107/arch/powerpc/include/asm/msi_bitmap.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/powerpc/include/asm/msi_bitmap.h	2021-02-04 17:41:59.000000000 +0000
@@ -19,6 +19,7 @@
 	unsigned long		*bitmap;
 	spinlock_t		lock;
 	unsigned int		irq_count;
+	bool		 	bitmap_from_slab;
 };
 
 int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num);