26 unsigned long __xchg(unsigned long x, volatile void *ptr, int size)  in __xchg()  argument
33 		return __xchg_u8(x, ptr);  in __xchg()
36 		ret = *(volatile u8 *)ptr;  in __xchg()
37 		*(volatile u8 *)ptr = x;  in __xchg()
44 		return __xchg_u16(x, ptr);  in __xchg()
47 		ret = *(volatile u16 *)ptr;  in __xchg()
48 		*(volatile u16 *)ptr = x;  in __xchg()
55 		return __xchg_u32(x, ptr);  in __xchg()
58 		ret = *(volatile u32 *)ptr;  in __xchg()
59 		*(volatile u32 *)ptr = x;  in __xchg()
67 		return __xchg_u64(x, ptr);  in __xchg()
70 		ret = *(volatile u64 *)ptr;  in __xchg()
71 		*(volatile u64 *)ptr = x;  in __xchg()
83 #define xchg(ptr, x) ({							\  argument
84 	((__typeof__(*(ptr)))						\
85 		__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))));	\
96 #define cmpxchg_local(ptr, o, n) ({					       \  argument
97 	((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
98 			(unsigned long)(n), sizeof(*(ptr))));		       \
103 #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))  argument
106 #define cmpxchg(ptr, o, n)	cmpxchg_local((ptr), (o), (n))  argument
107 #define cmpxchg64(ptr, o, n)	cmpxchg64_local((ptr), (o), (n))  argument