On 26 September 2014 21:35, Luca Coelho <[email protected]> wrote:
> From: Luciano Coelho <[email protected]>
>
> Instead of immediately reopening the queues (in case of block_tx),
> calling the post_channel_switch operation and sending the
> notification, wait for the first beacon on the new channel. This
> makes sure that we don't lose packets if the AP/GO is not on the new
> channel yet.
>
> Signed-off-by: Luciano Coelho <[email protected]>
[...]
Just a few nitpicks from me:
> +static void ieee80211_chswitch_post_beacon(struct ieee80211_sub_if_data
> *sdata)
> +{
> + struct ieee80211_local *local = sdata->local;
> + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
> + int ret;
> +
> + sdata_assert_lock(sdata);
>
I was thinking about WARN_ON(!sdata->vif.csa_active) here. csa_active
should be set in all cases if csa_waiting_bcn is set, no?
> - /* XXX: wait for a beacon first? */
> if (sdata->csa_block_tx) {
> ieee80211_wake_vif_queues(local, sdata,
> IEEE80211_QUEUE_STOP_REASON_CSA);
> sdata->csa_block_tx = false;
> }
>
> + sdata->vif.csa_active = false;
> + ifmgd->csa_waiting_bcn = false;
> +
> ret = drv_post_channel_switch(sdata);
> if (ret) {
> sdata_info(sdata,
> "driver post channel switch failed,
> disconnecting\n");
> ieee80211_queue_work(&local->hw,
> &ifmgd->csa_connection_drop_work);
> - goto out;
> + return;
> }
> <---- here
> - ieee80211_sta_reset_beacon_monitor(sdata);
> - ieee80211_sta_reset_conn_monitor(sdata);
> -
> -out:
> - mutex_unlock(&local->chanctx_mtx);
> - mutex_unlock(&local->mtx);
> - sdata_unlock(sdata);
> }
Is that an empty line I before final `}`?
Michał
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