[MIPS] Non-FPAFF: Fix warning.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index be64fc55562ae2928d98275ff9c9634ac74959a1..46bdb3f566f92b209062628b1b7dc854c587092e 100644 (file)
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -56,7 +56,7 @@ do {                                                                  \
 } while(0)
 
 #else
-#define __mips_mt_fpaff_switch_to(prev) do { (prev); } while (0)
+#define __mips_mt_fpaff_switch_to(prev) do { (void) (prev); } while (0)
 #endif
 
 #define switch_to(prev,next,last)                                      \