For architectures that support native cmpxchg, we'd like to
implement arch_cmpxchg[64]_local with the native variants of
supported data size. If not, the generci_cmpxchg[64]_local
will be used.
Signed-off-by: wuqiang.matt <wuqiang.m...@bytedance.com>
---
arch/openrisc/include/asm/cmpxchg.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/openrisc/include/asm/cmpxchg.h
b/arch/openrisc/include/asm/cmpxchg.h
index 8ee151c072e4..f1ffe8b6f5ef 100644
--- a/arch/openrisc/include/asm/cmpxchg.h
+++ b/arch/openrisc/include/asm/cmpxchg.h
@@ -139,6 +139,12 @@ static inline unsigned long __cmpxchg(volatile void *ptr,
unsigned long old,
(unsigned long)(n), \
sizeof(*(ptr))); \
})
+#define arch_cmpxchg_local arch_cmpxchg
+
+/* always make arch_cmpxchg64_local available for openrisc */
+#include <asm-generic/cmpxchg-local.h>
+
+#define arch_cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o),
(n))
/*
* This function doesn't exist, so you'll get a linker error if
--
2.40.1
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