On Fri, Jul 23, 2021 at 5:36 PM xiaoqiang zhao
[off-list ref] wrote:

在 2021/7/23 17:25, Dongliang Mu 写道:

quoted

Can you point out the concrete code releasing regd? Maybe the link to elixir.

quoted

quoted

      ieee80211_unregister_hw(data->hw);
      device_release_driver(data->dev);
      device_unregister(data->dev);

call graph seems like this:

ieee80211_unregister_hw
(https://elixir.bootlin.com/linux/v5.14-rc2/source/net/mac80211/main.c#L1368)
        wiphy_unregister
(https://elixir.bootlin.com/linux/v5.14-rc2/source/net/wireless/core.c#L1011)
                wiphy_regulatory_deregister
(https://elixir.bootlin.com/linux/v5.14-rc2/source/net/wireless/reg.c#L4057)
                        rcu_free_regdom

Thanks very much. This is really helpful.