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tun: Fix xdp_rxq_info's queue_index when detaching 

[ Upstream commit 2a770cdc43 ]

When a queue(tfile) is detached, we only update tfile's queue_index,
but do not update xdp_rxq_info's queue_index. This patch fixes it.

Fixes: 8bf5c4ee18 ("tun: setup xdp_rxq_info")
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Link: https://lore.kernel.org/r/1708398727-46308-1-git-send-email-wangyunjian@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yunjian Wang 2024-02-20 11:12:07 +08:00 committed by Greg Kroah-Hartman
parent a3c8fa54e9
commit 29360fd328
1 changed files with 1 additions and 0 deletions
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drivers/net/tun.c
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@ -653,6 +653,7 @@ static void __tun_detach(struct tun_file *tfile, bool clean)
tun->tfiles[tun->numqueues - 1]);
ntfile = rtnl_dereference(tun->tfiles[index]);
ntfile->queue_index = index;
ntfile->xdp_rxq.queue_index = index;
rcu_assign_pointer(tun->tfiles[tun->numqueues - 1],
NULL);