function bbp_profile_update_role( $user_id = 0 ) {

	// Bail if no user ID was passed
	if ( empty( $user_id ) ) {
		return;
	}

	// Bail if no role
	if ( ! isset( $_POST['bbp-forums-role'] ) ) {
		return;
	}

	// Forums role we want the user to have
	$new_role    = sanitize_key( $_POST['bbp-forums-role'] );
	$forums_role = bbp_get_user_role( $user_id );

	// Bail if no role change
	if ( $new_role === $forums_role ) {
		return;
	}

	// Bail if trying to set their own role
	if ( bbp_is_user_home_edit() ) {
		return;
	}

	// Bail if current user cannot promote the passing user
	if ( ! current_user_can( 'promote_user', $user_id ) ) {
		return;
	}

	// Set the new forums role
	bbp_set_user_role( $user_id, $new_role );
}