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Re: [PATCH 07/20] ath6kl: Implement mgmt_tx

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On 08/29/2011 03:23 PM, Jouni Malinen wrote:
> +static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
> +			  struct ieee80211_channel *chan, bool offchan,
> +			  enum nl80211_channel_type channel_type,
> +			  bool channel_type_valid, unsigned int wait,
> +			  const u8 *buf, size_t len, u64 *cookie)
> +{
> +	struct ath6kl *ar = ath6kl_priv(dev);
> +	u32 id;
> +
> +	id = ar->send_action_id++;
> +	if (id == 0)
> +		id = ar->send_action_id++;
> +
> +	*cookie = id;
> +	return ath6kl_wmi_send_action_cmd(ar->wmi, id, chan->center_freq, wait,
> +					  buf, len);
> +}

I don't understand the "if (id == 0)" check. It would be nice to get a
comment giving some background info about the situation.

Kalle
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