sh: do not perform IPI-based cache flush except on boards that need it
Signed-off-by: Rich Felker <dalias@libc.org>
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 @@
{
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 @@
*/
if (num_online_cpus() > 1)
smp_call_function(func, info, wait);
+#endif
func(info);