diff -r 34716fd837a4 -r be944660c56a wp/wp-admin/includes/bookmark.php
--- a/wp/wp-admin/includes/bookmark.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-admin/includes/bookmark.php	Wed Sep 21 18:19:35 2022 +0200
@@ -142,13 +142,34 @@
 }
 
 /**
- * Inserts/updates links into/in the database.
+ * Inserts a link into the database, or updates an existing link.
+ *
+ * Runs all the necessary sanitizing, provides default values if arguments are missing,
+ * and finally saves the link.
  *
  * @since 2.0.0
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
- * @param array $linkdata Elements that make up the link to insert.
+ * @param array $linkdata {
+ *     Elements that make up the link to insert.
+ *
+ *     @type int    $link_id          Optional. The ID of the existing link if updating.
+ *     @type string $link_url         The URL the link points to.
+ *     @type string $link_name        The title of the link.
+ *     @type string $link_image       Optional. A URL of an image.
+ *     @type string $link_target      Optional. The target element for the anchor tag.
+ *     @type string $link_description Optional. A short description of the link.
+ *     @type string $link_visible     Optional. 'Y' means visible, anything else means not.
+ *     @type int    $link_owner       Optional. A user ID.
+ *     @type int    $link_rating      Optional. A rating for the link.
+ *     @type string $link_updated     Optional. When the link was last updated.
+ *     @type string $link_rel         Optional. A relationship of the link to you.
+ *     @type string $link_notes       Optional. An extended description of or notes on the link.
+ *     @type string $link_rss         Optional. A URL of an associated RSS feed.
+ *     @type int    $link_category    Optional. The term ID of the link category.
+ *                                    If empty, uses default link category.
+ * }
  * @param bool  $wp_error Optional. Whether to return a WP_Error object on failure. Default false.
  * @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
  */
@@ -274,7 +295,7 @@
  *
  * @since 2.0.0
  *
- * @param array $linkdata Link data to update.
+ * @param array $linkdata Link data to update. See wp_insert_link() for accepted arguments.
  * @return int|WP_Error Value 0 or WP_Error on failure. The updated link ID on success.
  */
 function wp_update_link( $linkdata ) {
@@ -320,10 +341,40 @@
 	$really_can_manage_links = current_user_can( 'manage_links' );
 	remove_filter( 'pre_option_link_manager_enabled', '__return_true', 100 );
 
-	if ( $really_can_manage_links && current_user_can( 'install_plugins' ) ) {
-		$link = network_admin_url( 'plugin-install.php?tab=search&s=Link+Manager' );
-		/* translators: %s: URL to install the Link Manager plugin. */
-		wp_die( sprintf( __( 'If you are looking to use the link manager, please install the <a href="%s">Link Manager</a> plugin.' ), $link ) );
+	if ( $really_can_manage_links ) {
+		$plugins = get_plugins();
+
+		if ( empty( $plugins['link-manager/link-manager.php'] ) ) {
+			if ( current_user_can( 'install_plugins' ) ) {
+				$install_url = wp_nonce_url(
+					self_admin_url( 'update.php?action=install-plugin&plugin=link-manager' ),
+					'install-plugin_link-manager'
+				);
+
+				wp_die(
+					sprintf(
+						/* translators: %s: A link to install the Link Manager plugin. */
+						__( 'If you are looking to use the link manager, please install the <a href="%s">Link Manager plugin</a>.' ),
+						esc_url( $install_url )
+					)
+				);
+			}
+		} elseif ( is_plugin_inactive( 'link-manager/link-manager.php' ) ) {
+			if ( current_user_can( 'activate_plugins' ) ) {
+				$activate_url = wp_nonce_url(
+					self_admin_url( 'plugins.php?action=activate&plugin=link-manager/link-manager.php' ),
+					'activate-plugin_link-manager/link-manager.php'
+				);
+
+				wp_die(
+					sprintf(
+						/* translators: %s: A link to activate the Link Manager plugin. */
+						__( 'Please activate the <a href="%s">Link Manager plugin</a> to use the link manager.' ),
+						esc_url( $activate_url )
+					)
+				);
+			}
+		}
 	}
 
 	wp_die( __( 'Sorry, you are not allowed to edit the links for this site.' ) );