diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index 8d2535123f11..17aff13cd7ce 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -4,6 +4,7 @@
  * Author: Paul Burton <paul.burton@mips.com>
  */
 
+#include <linux/bitfield.h>
 #include <linux/errno.h>
 #include <linux/percpu.h>
 #include <linux/of.h>
@@ -97,7 +98,7 @@ void mips_cpc_lock_other(unsigned int core)
 	curr_core = cpu_core(&current_cpu_data);
 	spin_lock_irqsave(&per_cpu(cpc_core_lock, curr_core),
 			  per_cpu(cpc_core_lock_flags, curr_core));
-	write_cpc_cl_other(core << __ffs(CPC_Cx_OTHER_CORENUM));
+	write_cpc_cl_other(FIELD_PREP(CPC_Cx_OTHER_CORENUM, core));
 
 	/*
 	 * Ensure the core-other region reflects the appropriate core &