From a1e262f6f126466f51d6955fb5bd6aaf0aacf68f Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Mon, 15 Feb 2016 18:36:33 +0000 Subject: [PATCH] sh: do not perform IPI-based cache flush except on boards that need it Signed-off-by: Rich Felker --- arch/sh/mm/cache.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c index 70cc52f..36554a9 100644 --- a/arch/sh/mm/cache.c +++ b/arch/sh/mm/cache.c @@ -42,6 +42,8 @@ static inline void cacheop_on_each_cpu(void (*func) (void *info), void *info, { preempt_disable(); + /* Needing IPI for cross-core flush is SHX3-specific. */ +#ifdef CONFIG_CPU_SHX3 /* * It's possible that this gets called early on when IRQs are * still disabled due to ioremapping by the boot CPU, so don't @@ -49,6 +51,7 @@ static inline void cacheop_on_each_cpu(void (*func) (void *info), void *info, */ if (num_online_cpus() > 1) smp_call_function(func, info, wait); +#endif func(info); -- 2.7.4