diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 420d2fc595d0..dec20f580cea 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1195,8 +1195,11 @@ void cpu_probe(void)
 	else
 		c->srsets = 1;
 
-	if (cpu_has_msa)
+	if (cpu_has_msa) {
 		c->msa_id = cpu_get_msa_id();
+		WARN(c->msa_id & MSA_IR_WRPF,
+		     "Vector register partitioning unimplemented!");
+	}
 
 	cpu_probe_vmbits(c);