Simplified ngx_http_init_listening(). There is no need to set "i" to 0, as it's expected to be 0 assuming the bindings are properly sorted, and we already rely on this when explicitly set hport->naddrs to 1. Remaining conditional code is replaced with identical "hport->naddrs = i + 1". Identical modifications are done in the mail and stream modules, in the ngx_mail_optimize_servers() and ngx_stream_optimize_servers() functions, respectively. No functional changes.

--- a/src/mail/ngx_mail.c
+++ b/src/mail/ngx_mail.c
@@ -392,13 +392,7 @@ ngx_mail_optimize_servers(ngx_conf_t *cf
 
             ls->servers = mport;
 
-            if (i == last - 1) {
-                mport->naddrs = last;
-
-            } else {
-                mport->naddrs = 1;
-                i = 0;
-            }
+            mport->naddrs = i + 1;
 
             switch (ls->sockaddr->sa_family) {
 #if (NGX_HAVE_INET6)