WordPress at a glance
filter is not described

comment_feed_limits filter-hook . WP 2.8.0

Filters the LIMIT clause of the comments feed query before sending.

Usage

add_filter( 'comment_feed_limits', 'filter_function_name_8822', 10, 2 );
function filter_function_name_8822( $climits, $this ){
	// filter...

	return $climits;
}
$climits(string)
The JOIN clause of the query.
$this(WP_Query)
The WP_Query instance (passed by reference).

Where the hook is called

WP_Query::get_posts()
wp-includes/class-wp-query.php 2466
$climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );
wp-includes/class-wp-query.php 2869
$climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );

Where the hook is used (in WP core)

Does not used.