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