pve-kernel-thunderx/patches/kernel/0002-bridge-keep-MAC-of-first-assigned-port.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
Date: Thu, 14 Sep 2017 11:02:18 +0200
Subject: [PATCH] bridge: keep MAC of first assigned port
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original commit message:

Default bridge changes MAC dynamically using smallest MAC of all
connected ports (for no real reason). To avoid problems with ARP
we simply use the MAC of the first connected port.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
 net/bridge/br_stp_if.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index d174d3a566aa..885e18c72c87 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -256,10 +256,7 @@ bool br_stp_recalculate_bridge_id(struct net_bridge *br)
 		return false;
 
 	list_for_each_entry(p, &br->port_list, list) {
-		if (addr == br_mac_zero ||
-		    memcmp(p->dev->dev_addr, addr, ETH_ALEN) < 0)
-			addr = p->dev->dev_addr;
-
+		addr = p->dev->dev_addr;
 	}
 
 	if (ether_addr_equal(br->bridge_id.addr, addr))