NX can set 3rd bit in CR register for XER[SO] (Summation overflow)
which is not used for paste return value. So. mask this bit to get
proper return status.
Signed-off-by: Haren Myneni <ha...@us.ibm.com>
diff --git a/arch/powerpc/platforms/powernv/copy-paste.h
b/arch/powerpc/platforms/powernv/copy-paste.h
index c9a5036..82392e3 100644
--- a/arch/powerpc/platforms/powernv/copy-paste.h
+++ b/arch/powerpc/platforms/powernv/copy-paste.h
@@ -9,7 +9,8 @@
#include <asm/ppc-opcode.h>
#define CR0_SHIFT 28
-#define CR0_MASK 0xF
+#define CR0_MASK 0xE /* 3rd bit undefined or set for XER[SO] */
+
/*
* Copy/paste instructions:
*
