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net: bridge: vlan: fix global vlan option range dumping

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When global vlan options are equal sequentially we compress them in a
range to save space and reduce processing time. In order to have the
proper range end id we need to update range_end if the options are equal
otherwise we get ranges with the same end vlan id as the start.

Fixes: 743a53d963 ("net: bridge: vlan: add support for dumping global vlan options")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Link: https://lore.kernel.org/r/20210810092139.11700-1-razor@blackwall.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Nikolay Aleksandrov 2021-08-10 12:21:39 +03:00 committed by Jakub Kicinski
parent 83f0a0b728
commit 6c4110d9f4
1 changed files with 2 additions and 1 deletions
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3
net/bridge/br_vlan.c
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@ -2019,7 +2019,7 @@ static int br_vlan_dump_dev(const struct net_device *dev,
if (dump_global) {
if (br_vlan_global_opts_can_enter_range(v, range_end))
continue;
goto update_end;
if (!br_vlan_global_opts_fill(skb, range_start->vid,
range_end->vid,
range_start)) {
@ -2045,6 +2045,7 @@ static int br_vlan_dump_dev(const struct net_device *dev,
range_start = v;
}
update_end:
range_end = v;
}