brcmfmac: rename brcmf_fws_mac_desc_ready()

Replace the function by brcmf_fws_mac_desc_closed(). The new function
is used in the transmit path and in the dequeue worker.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c

@@ -714,26 +714,19 @@ done:
 	return entry;
 }
 
-static bool brcmf_fws_mac_desc_ready(struct brcmf_fws_mac_descriptor *entry,
-				     int fifo)
+static bool brcmf_fws_mac_desc_closed(struct brcmf_fws_mac_descriptor *entry,
+				      int fifo)
 {
-	bool ready;
+	bool closed;
 
-	/*
-	 * destination entry is ready when firmware says it is OPEN
-	 * and there are no packets enqueued for it.
+	/* an entry is closed when the state is closed and
+	 * the firmware did not request anything.
 	 */
-	ready = entry->state == BRCMF_FWS_STATE_OPEN &&
-		!entry->suppressed &&
-		brcmu_pktq_mlen(&entry->psq, 3 << (fifo * 2)) == 0;
+	closed = entry->state == BRCMF_FWS_STATE_CLOSE &&
+		 !entry->requested_credit && !entry->requested_packet;
 
-	/*
-	 * Or when the destination entry is CLOSED, but firmware has
-	 * specifically requested packets for this entry.
-	 */
-	ready = ready || (entry->state == BRCMF_FWS_STATE_CLOSE &&
-		(entry->requested_credit + entry->requested_packet));
-	return ready;
+	/* Or firmware does not allow traffic for given fifo */
+	return closed || !(entry->ac_bitmap & BIT(fifo));
 }
 
 static void brcmf_fws_mac_desc_cleanup(struct brcmf_fws_info *fws,
@@ -1086,7 +1079,7 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 
 	for (i = 0; i < num_nodes; i++) {
 		entry = &table[(node_pos + i) % num_nodes];
-		if (!entry->occupied)
+		if (!entry->occupied || brcmf_fws_mac_desc_closed(entry, fifo))
 			continue;
 
 		if (entry->suppressed)
@@ -1758,7 +1751,9 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 		  multicast, fifo);
 
 	brcmf_fws_lock(drvr, flags);
-	if (!brcmf_fws_mac_desc_ready(skcb->mac, fifo) ||
+	if (skcb->mac->suppressed ||
+	    brcmf_fws_mac_desc_closed(skcb->mac, fifo) ||
+	    brcmu_pktq_mlen(&skcb->mac->psq, 3 << (fifo * 2)) ||
 	    (!multicast &&
 	     brcmf_fws_consume_credit(drvr->fws, fifo, skb) < 0)) {
 		/* enqueue the packet in delayQ */