From: Vincent Bernat <vincent@bernat.im>
Date: Wed, 3 Dec 2014 21:28:03 +0000 (+0100)
Subject: lldpd: really ensure that port checksum can never be 0
X-Git-Tag: 0.7.13~11
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=24cce58cfc1bc9065113059ecec7bd1d4bab4428;p=thirdparty%2Flldpd.git

lldpd: really ensure that port checksum can never be 0
---

diff --git a/src/daemon/lldpd.c b/src/daemon/lldpd.c
index 4d2317a1..dfbce73c 100644
--- a/src/daemon/lldpd.c
+++ b/src/daemon/lldpd.c
@@ -315,7 +315,7 @@ lldpd_reset_timer(struct lldpd *cfg)
 		/* Port change is detected by computing a checksum. 0 means the
 		 * checksum never was computed (new interface). */
 		cksum  = frame_checksum(output, output_len, 0);
-		cksum &= 1;
+		cksum |= 1;
 		free(output);
 		if (cksum != hardware->h_lport_cksum) {
 			log_debug("localchassis",