kernel: fix mips MT_SMP kernel crash on cache flush

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2016-06-09 19:09:23 +02:00
parent 9e45f9d63c
commit eed2f24c0d

View file

@ -0,0 +1,17 @@
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();
}