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| author | Peter Zijlstra <peterz@infradead.org> | 2023-05-31 15:08:44 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-06-05 09:36:39 +0200 |
| commit | febe950dbfb464799beb0339cc6fb10699f4a5da (patch) | |
| tree | 96098a18fcc97b277a828e837409f68f4917a88f /arch/arm64/include/asm/cmpxchg.h | |
| parent | 6801be4f2653e5fdddca73b527cf0728284ba8a3 (diff) | |
| download | linux-febe950dbfb464799beb0339cc6fb10699f4a5da.tar.gz linux-febe950dbfb464799beb0339cc6fb10699f4a5da.tar.bz2 linux-febe950dbfb464799beb0339cc6fb10699f4a5da.zip | |
arch: Remove cmpxchg_double
No moar users, remove the monster.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230531132323.991907085@infradead.org
Diffstat (limited to 'arch/arm64/include/asm/cmpxchg.h')
| -rw-r--r-- | arch/arm64/include/asm/cmpxchg.h | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h index 097b832ed374..d7a540736741 100644 --- a/arch/arm64/include/asm/cmpxchg.h +++ b/arch/arm64/include/asm/cmpxchg.h @@ -130,22 +130,6 @@ __CMPXCHG_CASE(mb_, 64) #undef __CMPXCHG_CASE -#define __CMPXCHG_DBL(name) \ -static inline long __cmpxchg_double##name(unsigned long old1, \ - unsigned long old2, \ - unsigned long new1, \ - unsigned long new2, \ - volatile void *ptr) \ -{ \ - return __lse_ll_sc_body(_cmpxchg_double##name, \ - old1, old2, new1, new2, ptr); \ -} - -__CMPXCHG_DBL( ) -__CMPXCHG_DBL(_mb) - -#undef __CMPXCHG_DBL - #define __CMPXCHG128(name) \ static inline u128 __cmpxchg128##name(volatile u128 *ptr, \ u128 old, u128 new) \ @@ -211,36 +195,6 @@ __CMPXCHG_GEN(_mb) #define arch_cmpxchg64 arch_cmpxchg #define arch_cmpxchg64_local arch_cmpxchg_local -/* cmpxchg_double */ -#define system_has_cmpxchg_double() 1 - -#define __cmpxchg_double_check(ptr1, ptr2) \ -({ \ - if (sizeof(*(ptr1)) != 8) \ - BUILD_BUG(); \ - VM_BUG_ON((unsigned long *)(ptr2) - (unsigned long *)(ptr1) != 1); \ -}) - -#define arch_cmpxchg_double(ptr1, ptr2, o1, o2, n1, n2) \ -({ \ - int __ret; \ - __cmpxchg_double_check(ptr1, ptr2); \ - __ret = !__cmpxchg_double_mb((unsigned long)(o1), (unsigned long)(o2), \ - (unsigned long)(n1), (unsigned long)(n2), \ - ptr1); \ - __ret; \ -}) - -#define arch_cmpxchg_double_local(ptr1, ptr2, o1, o2, n1, n2) \ -({ \ - int __ret; \ - __cmpxchg_double_check(ptr1, ptr2); \ - __ret = !__cmpxchg_double((unsigned long)(o1), (unsigned long)(o2), \ - (unsigned long)(n1), (unsigned long)(n2), \ - ptr1); \ - __ret; \ -}) - /* cmpxchg128 */ #define system_has_cmpxchg128() 1 |