4.19-stable review patch. If anyone has any objections, please let me know.
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From: Yunjian Wang wangyunjian@huawei.com
[ Upstream commit 2a770cdc4382b457ca3d43d03f0f0064f905a0d0 ]
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: 8bf5c4ee1889 ("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@huaw... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/tun.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 055664a26f7a8..625525275539a 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -729,6 +729,7 @@ 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);