ARC: Enable HAVE_FUTEX_CMPXCHG

ARC doesn't need the runtime detection of futex cmpxchg op

Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index e119d42f92ce9fc35c36088e743a93b4f9b526ef..78c0621d581940f3f765e75c5218a7cdc9a4ae5f 100644 (file)
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -23,6 +23,7 @@ config ARC
        select GENERIC_SMP_IDLE_THREAD
        select HAVE_ARCH_KGDB
        select HAVE_ARCH_TRACEHOOK
+       select HAVE_FUTEX_CMPXCHG
        select HAVE_IOREMAP_PROT
        select HAVE_KPROBES
        select HAVE_KRETPROBES