Currently plpar_wrappers.h is not safe to include when
CONFIG_PPC_PSERIES=n, or at least it can be depending on other config
options and so on.

Fix that by wrapping the entire content in an ifdef.

Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
 arch/powerpc/include/asm/plpar_wrappers.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/include/asm/plpar_wrappers.h 
b/arch/powerpc/include/asm/plpar_wrappers.h
index 1776af9e0118..09cb26816b2d 100644
--- a/arch/powerpc/include/asm/plpar_wrappers.h
+++ b/arch/powerpc/include/asm/plpar_wrappers.h
@@ -2,6 +2,8 @@
 #ifndef _ASM_POWERPC_PLPAR_WRAPPERS_H
 #define _ASM_POWERPC_PLPAR_WRAPPERS_H
 
+#ifdef CONFIG_PPC_PSERIES
+
 #include <linux/string.h>
 #include <linux/irqflags.h>
 
@@ -332,4 +334,6 @@ static inline long plpar_get_cpu_characteristics(struct 
h_cpu_char_result *p)
        return rc;
 }
 
+#endif /* CONFIG_PPC_PSERIES */
+
 #endif /* _ASM_POWERPC_PLPAR_WRAPPERS_H */
-- 
2.14.1

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