openwrt-owl/target/linux/generic/patches-4.4/100-MIPS-fix-MT_SMP-cachefl...

18 lines
510 B
Diff

Fix crash on cache flush with the MT_SMP variant
Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -60,8 +60,10 @@ static inline void r4k_on_each_cpu(void
* to restrict that call when a CM is not present because both
* CM-based SMP protocols (CMP & CPS) restrict index-based cache ops.
*/
+#ifndef CONFIG_MIPS_MT_SMP
if (!mips_cm_present())
smp_call_function_many(&cpu_foreign_map, func, info, 1);
+#endif
func(info);
preempt_enable();
}