[SPARC64]: Fix BACKOFF_SPIN on non-SMP.
It can't be just empty, it has to at least branch
back to 'label'.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/backoff.h b/include/asm-sparc64/backoff.h
index 0e32f8b..dadd6c3 100644
--- a/include/asm-sparc64/backoff.h
+++ b/include/asm-sparc64/backoff.h
@@ -21,7 +21,9 @@
#else
#define BACKOFF_SETUP(reg)
-#define BACKOFF_SPIN(reg, tmp, label)
+#define BACKOFF_SPIN(reg, tmp, label) \
+ ba,pt %xcc, label; \
+ nop;
#endif