static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx,
					    struct sk_buff *skb, bool consume)
{
	struct ieee80211_local *local = rx->local;
	struct ieee80211_sub_if_data *sdata = rx->sdata;

	rx->skb = skb;

	/* See if we can do fast-rx; if we have to copy we already lost,
	 * so punt in that case. We should never have to deliver a data
	 * frame to multiple interfaces anyway.
	 *
	 * We skip the ieee80211_accept_frame() call and do the necessary
	 * checking inside ieee80211_invoke_fast_rx().
	 */
	if (consume && rx->sta) {
		struct ieee80211_fast_rx *fast_rx;

		fast_rx = rcu_dereference(rx->sta->fast_rx);
		if (fast_rx && ieee80211_invoke_fast_rx(rx, fast_rx))
			return true;
	}

	if (!ieee80211_accept_frame(rx))
		return false;

	if (!consume) {
		skb = skb_copy(skb, GFP_ATOMIC);
		if (!skb) {
			if (net_ratelimit())
				wiphy_debug(local->hw.wiphy,
					"failed to copy skb for %s\n",
					sdata->name);
			return true;
		}

		rx->skb = skb;
	}

	ieee80211_invoke_rx_handlers(rx);
	return true;
}
Unknown