staging: brcm80211: fix cast to pointer from integer

bcm_pktq_flush and related functions only ever get 0 or a pointer for
arg, so make it a pointer.

This might fix a crash on 64bit.
Signed-off-by: Clemens Noss <cnoss@gmx.de>
Acked-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmfmac/dhd_sdio.c

@@ -2845,7 +2845,7 @@ void dhd_bus_stop(struct dhd_bus *bus, bool enforce_mutex)
 	dhdsdio_clkctl(bus, CLK_SDONLY, false);
 
 	/* Clear the data packet queues */
-	bcm_pktq_flush(&bus->txq, true, NULL, 0);
+	bcm_pktq_flush(&bus->txq, true, NULL, NULL);
 
 	/* Clear any held glomming stuff */
 	if (bus->glomd)

drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c

@@ -1204,7 +1204,7 @@ void wlc_ampdu_shm_upd(struct ampdu_info *ampdu)
 /*
  * callback function that helps flushing ampdu packets from a priority queue
  */
-static bool cb_del_ampdu_pkt(void *p, int arg_a)
+static bool cb_del_ampdu_pkt(void *p, void *arg_a)
 {
 	struct sk_buff *mpdu = (struct sk_buff *)p;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(mpdu);
@@ -1248,7 +1248,7 @@ void wlc_ampdu_flush(struct wlc_info *wlc,
 	ampdu_pars.tid = tid;
 	for (prec = 0; prec < pq->num_prec; prec++) {
 		bcm_pktq_pflush(pq, prec, true, cb_del_ampdu_pkt,
-			    (int)&ampdu_pars);
+			    (void *)&ampdu_pars);
 	}
 	wlc_inval_dma_pkts(wlc->hw, sta, dma_cb_fn_ampdu);
 }

drivers/staging/brcm80211/brcmsmac/wlc_main.c

@@ -2453,7 +2453,7 @@ uint wlc_down(struct wlc_info *wlc)
 
 	/* flush tx queues */
 	for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
-		bcm_pktq_flush(&qi->q, true, NULL, 0);
+		bcm_pktq_flush(&qi->q, true, NULL, NULL);
 	}
 
 	callbacks += wlc_bmac_down_finish(wlc->hw);
@@ -7519,7 +7519,7 @@ void wlc_wait_for_tx_completion(struct wlc_info *wlc, bool drop)
 {
 	/* flush packet queue when requested */
 	if (drop)
-		bcm_pktq_flush(&wlc->pkt_queue->q, false, NULL, 0);
+		bcm_pktq_flush(&wlc->pkt_queue->q, false, NULL, NULL);
 
 	/* wait for queue and DMA fifos to run dry */
 	while (!pktq_empty(&wlc->pkt_queue->q) ||

drivers/staging/brcm80211/include/bcmutils.h

@@ -74,7 +74,7 @@
 #define PKTQ_PREC_ITER(pq, prec)        for (prec = (pq)->num_prec - 1; prec >= 0; prec--)
 
 /* fn(pkt, arg).  return true if pkt belongs to if */
-	typedef bool(*ifpkt_cb_t) (void *, int);
+	typedef bool(*ifpkt_cb_t) (void *, void *);
 
 /* operations on a specific precedence in packet queue */
 
@@ -100,7 +100,7 @@ extern void bcm_pkt_buf_free_skb(struct sk_buff *skb);
 
 /* Empty the queue at particular precedence level */
 extern void bcm_pktq_pflush(struct pktq *pq, int prec,
-	bool dir, ifpkt_cb_t fn, int arg);
+	bool dir, ifpkt_cb_t fn, void *arg);
 
 /* operations on a set of precedences in packet queue */
 
@@ -127,7 +127,7 @@ extern void bcm_pktq_init(struct pktq *pq, int num_prec, int max_len);
 /* prec_out may be NULL if caller is not interested in return value */
 extern struct sk_buff *bcm_pktq_peek_tail(struct pktq *pq, int *prec_out);
 extern void bcm_pktq_flush(struct pktq *pq, bool dir,
-	ifpkt_cb_t fn, int arg);
+	ifpkt_cb_t fn, void *arg);
 
 /* externs */
 /* packet */

drivers/staging/brcm80211/util/bcmutils.c

@@ -231,7 +231,7 @@ EXPORT_SYMBOL(bcm_pktq_pdeq_tail);
 
 void
 bcm_pktq_pflush(struct pktq *pq, int prec, bool dir,
-	    ifpkt_cb_t fn, int arg)
+	    ifpkt_cb_t fn, void *arg)
 {
 	struct pktq_prec *q;
 	struct sk_buff *p, *prev = NULL;
@@ -263,7 +263,7 @@ bcm_pktq_pflush(struct pktq *pq, int prec, bool dir,
 EXPORT_SYMBOL(bcm_pktq_pflush);
 
 void bcm_pktq_flush(struct pktq *pq, bool dir,
-		ifpkt_cb_t fn, int arg)
+		ifpkt_cb_t fn, void *arg)
 {
 	int prec;
 	for (prec = 0; prec < pq->num_prec; prec++)