[RFC/RFT PATCH 2/6] arc: Wire up cmpxchg64_local() to generic implementation

[Ard Biesheuvel]

From: Ard Biesheuvel <ardb@xxxxxxxxxx>

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

Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
---
 arch/arc/include/asm/cmpxchg.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h
index 76f43db0890f..f2d55823645c 100644
--- a/arch/arc/include/asm/cmpxchg.h
+++ b/arch/arc/include/asm/cmpxchg.h
@@ -12,6 +12,7 @@
 
 #include <asm/barrier.h>
 #include <asm/smp.h>
+#include <asm-generic/cmpxchg-local.h>
 
 #ifdef CONFIG_ARC_HAS_LLSC
 
@@ -142,4 +143,6 @@
 
 #endif
 
+#define arch_cmpxchg64_local __generic_cmpxchg64_local
+
 #endif
-- 
2.52.0.107.ga0afd4fd5b-goog