diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index 5f1f80d424dd..2d50eec94cd7 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -350,10 +350,7 @@ static struct wc_memory_superblock *sb(struct dm_writecache *wc)
 
 static struct wc_memory_entry *memory_entry(struct dm_writecache *wc, struct wc_entry *e)
 {
-	if (is_power_of_2(sizeof(struct wc_entry)) && 0)
-		return &sb(wc)->entries[e - wc->entries];
-	else
-		return &sb(wc)->entries[e->index];
+	return &sb(wc)->entries[e->index];
 }
 
 static void *memory_data(struct dm_writecache *wc, struct wc_entry *e)