[PATCH] powerpc: sanitize header files for user space includes

include/asm-ppc/ had #ifdef __KERNEL__ in all header files that
are not meant for use by user space, include/asm-powerpc does
not have this yet.

This patch gets us a lot closer there. There are a few cases
where I was not sure, so I left them out. I have verified
that no CONFIG_* symbols are used outside of __KERNEL__
any more and that there are no obvious compile errors when
including any of the headers in user space libraries.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/include/asm-powerpc/iommu.h b/include/asm-powerpc/iommu.h
index 59f0626..8a8393e 100644
--- a/include/asm-powerpc/iommu.h
+++ b/include/asm-powerpc/iommu.h
@@ -20,6 +20,7 @@
 
 #ifndef _ASM_IOMMU_H
 #define _ASM_IOMMU_H
+#ifdef __KERNEL__
 
 #include <linux/config.h>
 #include <asm/types.h>
@@ -115,4 +116,5 @@
 
 extern void alloc_dart_table(void);
 
+#endif /* __KERNEL__ */
 #endif /* _ASM_IOMMU_H */