From: Harshal Gohel <hg@simonwunderlich.de>
Date: Fri, 8 Aug 2025 15:31:03 +0000 (+0200)
Subject: realtek: rtl93xx: Trap LLDP management frames
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=refs%2Fpull%2F19571%2Fhead;p=thirdparty%2Fopenwrt.git

realtek: rtl93xx: Trap LLDP management frames

LLDP packets must be transmitted on a single port and trapped on a port of
a device which understands LLDP. It must not forward it to other ports to
avoid confusing neighbor information on connected devices.

Signed-off-by: Harshal Gohel <hg@simonwunderlich.de>
Signed-off-by: Sharadanand Karanjkar <sk@simonwunderlich.de>
Link: https://github.com/openwrt/openwrt/pull/19571
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---

diff --git a/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c
index 4dbf3d29ffa..a30c681c9a9 100644
--- a/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c
+++ b/target/linux/realtek/files-6.12/drivers/net/dsa/rtl83xx/dsa.c
@@ -529,6 +529,8 @@ static int rtl93xx_setup(struct dsa_switch *ds)
 
 	rtl83xx_vlan_setup(priv);
 
+	rtldsa_setup_lldp_traps(priv);
+
 	ds->configure_vlan_while_not_filtering = true;
 
 	priv->r->l2_learning_setup();