On Fri, 2013-02-08 at 18:16 +0100, Simon Wunderlich wrote:
> --- a/net/wireless/nl80211.c
> +++ b/net/wireless/nl80211.c
> @@ -531,9 +531,16 @@ static int nl80211_msg_put_channel(struct sk_buff *msg,
> if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
> nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
> goto nla_put_failure;
> - if ((chan->flags & IEEE80211_CHAN_RADAR) &&
> - nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
> - goto nla_put_failure;
> + if ((chan->flags & IEEE80211_CHAN_RADAR)) {
> + u32 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
> + if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
> + goto nla_put_failure;
> + if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
> + chan->dfs_state))
> + goto nla_put_failure;
> + if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time))
> + goto nla_put_failure;
> + }
I'm going to have to revert this part for now, it's causing nl80211
wiphy information messages to overflow depending on the regdomain.
Luckily, we already have a solution in the works, but we're going to
have to send some information only to userspace that implements the
solution.
johannes
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