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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-10-08 13:38:49 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-10-14 14:32:15 +0200 |
| commit | e4165dcbc087eaf0fa892c6eee7fce8ac0482742 (patch) | |
| tree | 6f6421dc120f04f379757159235888fa797e501f /arch/s390/include/asm/cmpxchg.h | |
| parent | s390/nmi: change type of mcck_interruption_code lowcore field (diff) | |
| download | linux-e4165dcbc087eaf0fa892c6eee7fce8ac0482742.tar.xz linux-e4165dcbc087eaf0fa892c6eee7fce8ac0482742.zip | |
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>
Diffstat (limited to 'arch/s390/include/asm/cmpxchg.h')
| -rw-r--r-- | arch/s390/include/asm/cmpxchg.h | 30 |
1 files changed, 3 insertions, 27 deletions
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h index 411464f4c97a..24ea6948e32b 100644 --- a/arch/s390/include/asm/cmpxchg.h +++ b/arch/s390/include/asm/cmpxchg.h @@ -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 |