diff --git a/kernel/pid.c b/kernel/pid.c
index 731c4e528f4e..c69c30d827e5 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -575,13 +575,10 @@ struct pid *find_ge_pid(int nr, struct pid_namespace *ns)
  */
 void __init pidhash_init(void)
 {
-	unsigned int pidhash_size;
-
 	pid_hash = alloc_large_system_hash("PID", sizeof(*pid_hash), 0, 18,
 					   HASH_EARLY | HASH_SMALL | HASH_ZERO,
 					   &pidhash_shift, NULL,
 					   0, 4096);
-	pidhash_size = 1U << pidhash_shift;
 }
 
 void __init pidmap_init(void)