diff -u b/core/modules/views/src/Plugin/views/display/Block.php b/core/modules/views/src/Plugin/views/display/Block.php
--- b/core/modules/views/src/Plugin/views/display/Block.php
+++ b/core/modules/views/src/Plugin/views/display/Block.php
@@ -349,7 +349,7 @@
    *
    * @see \Drupal\views\Plugin\Block\ViewsBlock::blockSubmit()
    */
-  public function blockSubmit(ViewsBlock $block, $form, FormStateInterface $form_state) {
+  public function blockSubmit(ViewsBlock $block, array $form, FormStateInterface $form_state) {
     if ($items_per_page = $form_state->getValue(['override', 'items_per_page'])) {
       $block->setConfigurationValue('items_per_page', $items_per_page);
     }
@@ -394,7 +394,7 @@
   }
 
   /**
-   * {@inheritDoc}
+   * {@inheritdoc}
    */
   public function getLinkDisplay() {
     return $this->getOption('link_display') ?: NULL;
diff -u b/core/modules/views/src/Plugin/views/display/Embed.php b/core/modules/views/src/Plugin/views/display/Embed.php
--- b/core/modules/views/src/Plugin/views/display/Embed.php
+++ b/core/modules/views/src/Plugin/views/display/Embed.php
@@ -35,7 +35,7 @@
   }
 
   /**
-   * {@inheritDoc}
+   * {@inheritdoc}
    */
   public function getLinkDisplay() {
     // @todo Change the autogenerated stub