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authorDavid S. Miller <davem@davemloft.net>2019-03-27 17:37:58 -0700
committerDavid S. Miller <davem@davemloft.net>2019-03-27 17:37:58 -0700
commit356d71e00d278d865f8c7f68adebd6ce4698a7e2 (patch)
tree8cb2dabf7440b56c6dee76b4253210c6b603b98e /arch/arm/include/asm/processor.h
parentdf453700e8d81b1bdafdf684365ee2b9431fb702 (diff)
parent1a9df9e29c2afecf6e3089442d429b377279ca3c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/arm/include/asm/processor.h')
-rw-r--r--arch/arm/include/asm/processor.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 120f4c9bbfde..57fe73ea0f72 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -89,7 +89,11 @@ extern void release_thread(struct task_struct *);
unsigned long get_wchan(struct task_struct *p);
#if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327)
-#define cpu_relax() smp_mb()
+#define cpu_relax() \
+ do { \
+ smp_mb(); \
+ __asm__ __volatile__("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"); \
+ } while (0)
#else
#define cpu_relax() barrier()
#endif