From 27cd47c58373fd36c998641850b01659cf02a235 Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Fri, 12 Jan 2018 15:08:00 +0000 Subject: [PATCH 104/131] arm64: no osb() implementation yet CVE-2017-5753 (Spectre v1 Intel) Signed-off-by: Andy Whitcroft --- arch/arm64/include/asm/barrier.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h index 78e20ba8806b..2fa829b1c51f 100644 --- a/arch/arm64/include/asm/barrier.h +++ b/arch/arm64/include/asm/barrier.h @@ -31,6 +31,9 @@ #define rmb() asm volatile("dsb ld" : : : "memory") #define wmb() asm volatile("dsb st" : : : "memory") +#define osb() do { } while (0) +#define osb_is_enabled (0) + #ifndef CONFIG_SMP #define smp_mb() barrier() #define smp_rmb() barrier() -- 2.15.1