diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 1b299e801f74..addaa6e6718b 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -244,20 +244,6 @@ static inline void add_powernv_state(int index, const char *name,
 	stop_psscr_table[index].mask = psscr_mask;
 }
 
-/*
- * Returns 0 if prop1_len == prop2_len. Else returns -1
- */
-static inline int validate_dt_prop_sizes(const char *prop1, int prop1_len,
-					 const char *prop2, int prop2_len)
-{
-	if (prop1_len == prop2_len)
-		return 0;
-
-	pr_warn("cpuidle-powernv: array sizes don't match for %s and %s\n",
-		prop1, prop2);
-	return -1;
-}
-
 extern u32 pnv_get_supported_cpuidle_states(void);
 static int powernv_add_idle_states(void)
 {