--- zzzz-none-000/linux-2.6.32.61/arch/mips/include/asm/system.h	2013-06-10 09:43:48.000000000 +0000
+++ ar9-7330-650/linux-2.6.32.61/arch/mips/include/asm/system.h	2011-07-20 07:23:51.000000000 +0000
@@ -194,7 +194,7 @@
 #define __xchg_u64 __xchg_u64_unsupported_on_32bit_kernels
 #endif
 
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+static __always_inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
 {
 	switch (size) {
 	case 4: