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net: bridge: Add checks for enabling the STP.

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It is not possible to have the MRP and STP running at the same time on the
bridge, therefore add check when enabling the STP to check if MRP is already
enabled. In that case return error.

Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Horatiu Vultur
2020-04-26 15:22:08 +02:00
committed by David S. Miller
parent 6536993371
commit 419dba8a49
6 changed files with 23 additions and 8 deletions
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4
net/bridge/br_netlink.c
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@@ -1109,7 +1109,9 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
if (data[IFLA_BR_STP_STATE]) {
u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
br_stp_set_enabled(br, stp_enabled);
err = br_stp_set_enabled(br, stp_enabled, extack);
if (err)
return err;
}
if (data[IFLA_BR_PRIORITY]) {