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Subject: Re: [PATCH 1/3] cfg80211: DFS check dfs_region before CAC
From: Johannes Berg <johannes@sipsolutions.net>
To: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Cc: linux-wireless@vger.kernel.org, mcgrof@do-not-panic.com
Date: Mon, 11 Nov 2013 15:03:19 +0100
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On Fri, 2013-11-08 at 11:41 +0100, Janusz Dziedzic wrote:

> +	rcu_read_lock();
> +	regdom = rcu_dereference(cfg80211_regdomain);
> +	dfs_region = regdom->dfs_region;
> +	rcu_read_unlock();

Isn't all of this valid to dereference under RTNL anyway? See
get_cfg80211_regdom()

johannes