Commit df6f08d3 authored by Jérôme Pouiller's avatar Jérôme Pouiller Committed by Greg Kroah-Hartman
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staging: wfx: check the vif ID of the Tx confirmations



When the driver has sent a frame on a virtual interface (vif), it
expects to receive the confirmation on the same vif.

This patch add a check for that.

Signed-off-by: default avatarJérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200701150707.222985-3-Jerome.Pouiller@silabs.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2a30cb16
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+5 −1
Original line number Diff line number Diff line
@@ -142,14 +142,18 @@ struct sk_buff *wfx_pending_get(struct wfx_vif *wvif, u32 packet_id)
{
	struct wfx_queue *queue;
	struct hif_req_tx *req;
	struct hif_msg *hif;
	struct sk_buff *skb;

	spin_lock_bh(&wvif->wdev->tx_pending.lock);
	skb_queue_walk(&wvif->wdev->tx_pending, skb) {
		req = wfx_skb_txreq(skb);
		hif = (struct hif_msg *)skb->data;
		req = (struct hif_req_tx *)hif->body;
		if (req->packet_id == packet_id) {
			spin_unlock_bh(&wvif->wdev->tx_pending.lock);
			queue = &wvif->tx_queue[skb_get_queue_mapping(skb)];
			WARN(hif->interface != wvif->id, "sent frame %08x on vif %d, but get reply on vif %d",
			     req->packet_id, hif->interface, wvif->id);
			WARN_ON(skb_get_queue_mapping(skb) > 3);
			WARN_ON(!atomic_read(&queue->pending_frames));
			atomic_dec(&queue->pending_frames);