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Date:      Fri, 11 Sep 2015 16:52:14 +0000 (UTC)
From:      Cy Schubert <cy@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r287675 - head/sys/contrib/ipfilter/netinet
Message-ID:  <201509111652.t8BGqEOJ038607@repo.freebsd.org>

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Author: cy
Date: Fri Sep 11 16:52:13 2015
New Revision: 287675
URL: https://svnweb.freebsd.org/changeset/base/287675

Log:
  Revert ip_fil_freebsd.c -r287674. This should not have gone in yet.

Modified:
  head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c

Modified: head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c
==============================================================================
--- head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c	Fri Sep 11 16:49:52 2015	(r287674)
+++ head/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c	Fri Sep 11 16:52:13 2015	(r287675)
@@ -1104,18 +1104,6 @@ ipf_checkv4sum(fin)
 		return -1;
 	}
 	if (m->m_pkthdr.csum_flags & CSUM_DATA_VALID) {
-		/* UDP may have zero checksum */
-		if (fin->fin_p == IPPROTO_UDP && (fin->fin_flx & (FI_FRAG|FI_SHORT|FI_BAD)) == 0) {
-			udphdr_t *udp = fin->fin_dp;
-			if (udp->uh_sum == 0) {
-				/* we're good no matter what the hardware checksum flags
-				   and csum_data say (handling of csum_data for zero UDP
-				   checksum is not consistent across all drivers) */
-				fin->fin_cksum = 1;
-				return 0;
-			}
-		}
-
 		if (m->m_pkthdr.csum_flags & CSUM_PSEUDO_HDR)
 			sum = m->m_pkthdr.csum_data;
 		else



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