Merge branch 'for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu

Pull percpu updates from Dennis Zhou:
 "A couple of updates to clean up the code with no change in behavior"

* 'for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
  percpu: Use struct_size() helper
  percpu: fix typo in pcpu_setup_first_chunk() comment
  percpu: Make pcpu_setup_first_chunk() void function

arch/ia64/mm/discontig.c

@@ -245,10 +245,7 @@ void __init setup_per_cpu_areas(void)
 		gi->cpu_map		= &cpu_map[unit];
 	}
 
-	rc = pcpu_setup_first_chunk(ai, base);
-	if (rc)
-		panic("failed to setup percpu area (err=%d)", rc);
-
+	pcpu_setup_first_chunk(ai, base);
 	pcpu_free_alloc_info(ai);
 }
 #endif