[RFC/RFT PATCH 1/6] hexagon: Wire up cmpxchg64_local() to generic implementation

Ard Biesheuvel
2025-11-27T09:22:55Z

From: Ard Biesheuvel <ardb@kernel.org>

Provide cmpxchg64_local() for hexagon so we can start using it in
generic code.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
arch/hexagon/include/asm/cmpxchg.h | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/hexagon/include/asm/cmpxchg.h b/arch/hexagon/include/asm/cmpxchg.h
index 9c58fb81f7fd..05e426475d2a 100644
--- a/arch/hexagon/include/asm/cmpxchg.h
+++ b/arch/hexagon/include/asm/cmpxchg.h
@@ -8,6 +8,8 @@
#ifndef _ASM_CMPXCHG_H
#define _ASM_CMPXCHG_H

+#include <asm-generic/cmpxchg-local.h>
+
/*
* __arch_xchg - atomically exchange a register and a memory location
* @x: value to swap
@@ -72,4 +74,6 @@ __arch_xchg(unsigned long x, volatile void *ptr, int size)
__oldval; \
})

+#define arch_cmpxchg64_local __generic_cmpxchg64_local
+
#endif /* _ASM_CMPXCHG_H */
--
2.52.0.107.ga0afd4fd5b-goog