git: 2d120650d3d8 - stable/13 - ipfilter: Correct a comment and add notation

The branch stable/13 has been updated by cy:

URL: https://cgit.FreeBSD.org/src/commit/?id=2d120650d3d8d79a9ae8ef7fb5deba99015a11cf

commit 2d120650d3d8d79a9ae8ef7fb5deba99015a11cf
Author:     Cy Schubert <cy@FreeBSD.org>
AuthorDate: 2021-10-20 02:33:02 +0000
Commit:     Cy Schubert <cy@FreeBSD.org>
CommitDate: 2021-12-09 18:50:22 +0000

    ipfilter: Correct a comment and add notation
    
    Correct a comment to accurately reflect what is being done. While
    we're at it document the next step in the process.
    
    (cherry picked from commit 1ca73c39a54750a4a2f584efd7c57f453bf7dbbe)
---
 sys/contrib/ipfilter/netinet/ip_ftp_pxy.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c b/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c
index 4ac7ffc7e5b1..a495292687d9 100644
--- a/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c
+++ b/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c
@@ -516,8 +516,7 @@ ipf_p_ftp_addport(softf, fin, ip, nat, ftp, dlen, nport, inc)
 #endif
 
 	/*
-	 * Add skeleton NAT entry for connection which will come back the
-	 * other way.
+	 * If an existing entry already exists, use it instead.
 	 */
 #ifdef USE_INET6
 	if (nat->nat_v[0] == 6) {
@@ -550,6 +549,9 @@ ipf_p_ftp_addport(softf, fin, ip, nat, ftp, dlen, nport, inc)
 	if (nat2 != NULL)
 		return APR_INC(inc);
 
+	/*
+	 * An existing entry doesn't exist. Let's make one.
+	 */
 	ipn = ipf_proxy_rule_rev(nat);
 	if (ipn == NULL)
 		return APR_ERR(1);