[MIPS] MT: Fix c0 back-to-back hazard.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/smp_mt.c b/arch/mips/kernel/smp_mt.c
index 186f5de..184fd46 100644
--- a/arch/mips/kernel/smp_mt.c
+++ b/arch/mips/kernel/smp_mt.c
@@ -68,6 +68,8 @@
 
 	set_c0_mvpcontrol(MVPCONTROL_VPC);
 
+	back_to_back_c0_hazard();
+
 	/* Disable TLB sharing */
 	clear_c0_mvpcontrol(MVPCONTROL_STLB);