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s390/cmpxchg: remove dead code 

With the removal of 31 bit support a couple of defines became unused.
Remove them.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2015-10-08 13:38:49 +02:00 committed by Martin Schwidefsky
parent 004f0bba19
commit e4165dcbc0
1 changed files with 3 additions and 27 deletions
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30
arch/s390/include/asm/cmpxchg.h
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@ -32,7 +32,7 @@
__old; \
})
#define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn) \
#define __cmpxchg_double(p1, p2, o1, o2, n1, n2) \
({ \
register __typeof__(*(p1)) __old1 asm("2") = (o1); \
register __typeof__(*(p2)) __old2 asm("3") = (o2); \
@ -40,7 +40,7 @@
register __typeof__(*(p2)) __new2 asm("5") = (n2); \
int cc; \
asm volatile( \
insn " %[old],%[new],%[ptr]\n" \
" cdsg %[old],%[new],%[ptr]\n" \
" ipm %[cc]\n" \
" srl %[cc],28" \
: [cc] "=d" (cc), [old] "+d" (__old1), "+d" (__old2) \
@ -50,30 +50,6 @@
!cc; \
})
#define __cmpxchg_double_4(p1, p2, o1, o2, n1, n2) \
__cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cds")
#define __cmpxchg_double_8(p1, p2, o1, o2, n1, n2) \
__cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cdsg")
extern void __cmpxchg_double_called_with_bad_pointer(void);
#define __cmpxchg_double(p1, p2, o1, o2, n1, n2) \
({ \
int __ret; \
switch (sizeof(*(p1))) { \
case 4: \
__ret = __cmpxchg_double_4(p1, p2, o1, o2, n1, n2); \
break; \
case 8: \
__ret = __cmpxchg_double_8(p1, p2, o1, o2, n1, n2); \
break; \
default: \
__cmpxchg_double_called_with_bad_pointer(); \
} \
__ret; \
})
#define cmpxchg_double(p1, p2, o1, o2, n1, n2) \
({ \
__typeof__(p1) __p1 = (p1); \
@ -81,7 +57,7 @@ extern void __cmpxchg_double_called_with_bad_pointer(void);
BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long)); \
BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \
VM_BUG_ON((unsigned long)((__p1) + 1) != (unsigned long)(__p2));\
__cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \
__cmpxchg_double(__p1, __p2, o1, o2, n1, n2); \
})
#define system_has_cmpxchg_double() 1