staging: brcm80211: move utility functions into new module

Move utility functions shared by the brcmsmac and brcmfmac drivers into a new
module, brcmutil.ko.  This eliminates the need to compile and link the shared
functions into both drivers.  Prefix all exported symbols with "bcm_".

Cc: devel@linuxdriverproject.org
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/Kconfig

+config BRCMUTIL
+	tristate
+	default n
+
 config BRCMSMAC
 	tristate "Broadcom IEEE802.11n PCIe SoftMAC WLAN driver"
 	default n
 	depends on PCI
 	depends on WLAN && MAC80211
+	select BRCMUTIL
 	select FW_LOADER
 	select CRC_CCITT
 	---help---
@@ -15,6 +20,7 @@ config BRCMFMAC
 	default n
 	depends on MMC
 	depends on WLAN && CFG80211
+	select BRCMUTIL
 	select FW_LOADER
 	select WIRELESS_EXT
 	select WEXT_PRIV

drivers/staging/brcm80211/Makefile

@@ -19,5 +19,6 @@
 subdir-ccflags-y					:= -DBCMDMA32
 subdir-ccflags-$(CONFIG_BRCMDBG)	+= -DBCMDBG -DBCMDBG_ASSERT
 
+obj-$(CONFIG_BRCMUTIL)	+= util/
 obj-$(CONFIG_BRCMFMAC)	+= brcmfmac/
 obj-$(CONFIG_BRCMSMAC)	+= brcmsmac/

drivers/staging/brcm80211/brcmfmac/Makefile

@@ -50,9 +50,7 @@ DHDOFILES = \
 	bcmsdh.o \
 	bcmsdh_linux.o	\
 	bcmsdh_sdmmc.o \
-	bcmsdh_sdmmc_linux.o \
-	bcmutils.o \
-	bcmwifi.o
+	bcmsdh_sdmmc_linux.o
 
 obj-m += brcmfmac.o
 brcmfmac-objs += $(DHDOFILES)

drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c

@@ -1042,9 +1042,9 @@ sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint write,
 	if (pkt == NULL) {
 		sd_data(("%s: Creating new %s Packet, len=%d\n",
 			 __func__, write ? "TX" : "RX", buflen_u));
-		mypkt = pkt_buf_get_skb(buflen_u);
+		mypkt = bcm_pkt_buf_get_skb(buflen_u);
 		if (!mypkt) {
-			sd_err(("%s: pkt_buf_get_skb failed: len %d\n",
+			sd_err(("%s: bcm_pkt_buf_get_skb failed: len %d\n",
 				__func__, buflen_u));
 			return SDIOH_API_RC_FAIL;
 		}
@@ -1060,7 +1060,7 @@ sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint write,
 		if (!write)
 			memcpy(buffer, mypkt->data, buflen_u);
 
-		pkt_buf_free_skb(mypkt);
+		bcm_pkt_buf_free_skb(mypkt);
 	} else if (((u32) (pkt->data) & DMA_ALIGN_MASK) != 0) {
 		/* Case 2: We have a packet, but it is unaligned. */
 
@@ -1069,9 +1069,9 @@ sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint write,
 
 		sd_data(("%s: Creating aligned %s Packet, len=%d\n",
 			 __func__, write ? "TX" : "RX", pkt->len));
-		mypkt = pkt_buf_get_skb(pkt->len);
+		mypkt = bcm_pkt_buf_get_skb(pkt->len);
 		if (!mypkt) {
-			sd_err(("%s: pkt_buf_get_skb failed: len %d\n",
+			sd_err(("%s: bcm_pkt_buf_get_skb failed: len %d\n",
 				__func__, pkt->len));
 			return SDIOH_API_RC_FAIL;
 		}
@@ -1087,7 +1087,7 @@ sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint write,
 		if (!write)
 			memcpy(pkt->data, mypkt->data, mypkt->len);
 
-		pkt_buf_free_skb(mypkt);
+		bcm_pkt_buf_free_skb(mypkt);
 	} else {		/* case 3: We have a packet and
 				 it is aligned. */
 		sd_data(("%s: Aligned %s Packet, direct DMA\n",

drivers/staging/brcm80211/brcmfmac/bcmutils.c

-#include "../util/bcmutils.c"

drivers/staging/brcm80211/brcmfmac/bcmwifi.c

-#include "../util/bcmwifi.c"

drivers/staging/brcm80211/brcmfmac/dhd_common.c

@@ -316,7 +316,7 @@ bool dhd_prec_enq(dhd_pub_t *dhdp, struct pktq *q, struct sk_buff *pkt,
 	 * exceeding total queue length
 	 */
 	if (!pktq_pfull(q, prec) && !pktq_full(q)) {
-		pktq_penq(q, prec, pkt);
+		bcm_pktq_penq(q, prec, pkt);
 		return true;
 	}
 
@@ -324,7 +324,7 @@ bool dhd_prec_enq(dhd_pub_t *dhdp, struct pktq *q, struct sk_buff *pkt,
 	if (pktq_pfull(q, prec))
 		eprec = prec;
 	else if (pktq_full(q)) {
-		p = pktq_peek_tail(q, &eprec);
+		p = bcm_pktq_peek_tail(q, &eprec);
 		ASSERT(p);
 		if (eprec > prec)
 			return false;
@@ -338,21 +338,21 @@ bool dhd_prec_enq(dhd_pub_t *dhdp, struct pktq *q, struct sk_buff *pkt,
 		if (eprec == prec && !discard_oldest)
 			return false;	/* refuse newer (incoming) packet */
 		/* Evict packet according to discard policy */
-		p = discard_oldest ? pktq_pdeq(q, eprec) : pktq_pdeq_tail(q,
-						  eprec);
+		p = discard_oldest ? bcm_pktq_pdeq(q, eprec) :
+			bcm_pktq_pdeq_tail(q, eprec);
 		if (p == NULL) {
-			DHD_ERROR(("%s: pktq_penq() failed, oldest %d.",
+			DHD_ERROR(("%s: bcm_pktq_penq() failed, oldest %d.",
 				   __func__, discard_oldest));
 			ASSERT(p);
 		}
 
-		pkt_buf_free_skb(p);
+		bcm_pkt_buf_free_skb(p);
 	}
 
 	/* Enqueue */
-	p = pktq_penq(q, prec, pkt);
+	p = bcm_pktq_penq(q, prec, pkt);
 	if (p == NULL) {
-		DHD_ERROR(("%s: pktq_penq() failed.", __func__));
+		DHD_ERROR(("%s: bcm_pktq_penq() failed.", __func__));
 		ASSERT(p);
 	}
 

drivers/staging/brcm80211/brcmfmac/wl_iw.c

@@ -375,7 +375,7 @@ wl_iw_set_freq(struct net_device *dev,
 		if (fwrq->m > 4000 && fwrq->m < 5000)
 			sf = WF_CHAN_FACTOR_4_G;
 
-		chan = wf_mhz2channel(fwrq->m, sf);
+		chan = bcm_mhz2channel(fwrq->m, sf);
 	}
 	chan = cpu_to_le32(chan);
 

drivers/staging/brcm80211/brcmsmac/Makefile

@@ -51,8 +51,6 @@ BRCMSMAC_OFILES := \
 	bcmsrom.o \
 	hnddma.o \
 	nicpci.o \
-	../util/bcmutils.o \
-	../util/bcmwifi.o \
 	nvram.o
 
 MODULEPFX := brcmsmac

drivers/staging/brcm80211/brcmsmac/bcmsrom.c

@@ -256,7 +256,7 @@ sprom_read_pci(si_t *sih, u16 *sprom, uint wordoff,
 
 		/* fixup the endianness so crc8 will pass */
 		htol16_buf(buf, nwords * 2);
-		if (hndcrc8((u8 *) buf, nwords * 2, CRC8_INIT_VALUE) !=
+		if (bcm_crc8((u8 *) buf, nwords * 2, CRC8_INIT_VALUE) !=
 		    CRC8_GOOD_VALUE) {
 			/* DBG only pci always read srom4 first, then srom8/9 */
 			err = 1;
@@ -296,7 +296,7 @@ static int otp_read_pci(si_t *sih, u16 *buf, uint bufsz)
 
 	/* fixup the endianness so crc8 will pass */
 	htol16_buf(buf, bufsz);
-	if (hndcrc8((u8 *) buf, SROM4_WORDS * 2, CRC8_INIT_VALUE) !=
+	if (bcm_crc8((u8 *) buf, SROM4_WORDS * 2, CRC8_INIT_VALUE) !=
 	    CRC8_GOOD_VALUE) {
 		err = 1;
 	}

drivers/staging/brcm80211/brcmsmac/hnddma.c

@@ -772,7 +772,7 @@ static void *BCMFASTPATH _dma_rx(dma_info_t *di)
 		if ((di->hnddma.dmactrlflags & DMA_CTRL_RXMULTI) == 0) {
 			DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n",
 				   di->name, len));
-			pkt_buf_free_skb(head);
+			bcm_pkt_buf_free_skb(head);
 			di->hnddma.rxgiants++;
 			goto next_frame;
 		}
@@ -820,7 +820,7 @@ static bool BCMFASTPATH _dma_rxfill(dma_info_t *di)
 		   size to be allocated
 		 */
 
-		p = pkt_buf_get_skb(di->rxbufsize + extra_offset);
+		p = bcm_pkt_buf_get_skb(di->rxbufsize + extra_offset);
 
 		if (p == NULL) {
 			DMA_ERROR(("%s: dma_rxfill: out of rxbufs\n",
@@ -918,7 +918,7 @@ static void _dma_rxreclaim(dma_info_t *di)
 	DMA_TRACE(("%s: dma_rxreclaim\n", di->name));
 
 	while ((p = _dma_getnextrxp(di, true)))
-		pkt_buf_free_skb(p);
+		bcm_pkt_buf_free_skb(p);
 }
 
 static void *BCMFASTPATH _dma_getnextrxp(dma_info_t *di, bool forceall)
@@ -1152,7 +1152,7 @@ static void BCMFASTPATH dma64_txreclaim(dma_info_t *di, txd_range_t range)
 	while ((p = dma64_getnexttxp(di, range))) {
 		/* For unframed data, we don't have any packets to free */
 		if (!(di->hnddma.dmactrlflags & DMA_CTRL_UNFRAMED))
-			pkt_buf_free_skb(p);
+			bcm_pkt_buf_free_skb(p);
 	}
 }
 
@@ -1489,7 +1489,7 @@ static int BCMFASTPATH dma64_txfast(dma_info_t *di, struct sk_buff *p0,
 
  outoftxd:
 	DMA_ERROR(("%s: dma_txfast: out of txds !!!\n", di->name));
-	pkt_buf_free_skb(p0);
+	bcm_pkt_buf_free_skb(p0);
 	di->hnddma.txavail = 0;
 	di->hnddma.txnobuf++;
 	return -1;

drivers/staging/brcm80211/brcmsmac/wl_mac80211.c

@@ -593,7 +593,7 @@ wl_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	wl->pub->global_ampdu = &(scb->scb_ampdu);
 	wl->pub->global_ampdu->scb = scb;
 	wl->pub->global_ampdu->max_pdu = 16;
-	pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
+	bcm_pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
 		  AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
 
 	sta->ht_cap.ht_supported = true;

drivers/staging/brcm80211/brcmsmac/wlc_ampdu.c

@@ -622,7 +622,7 @@ wlc_sendampdu(struct ampdu_info *ampdu, struct wlc_txq_info *qi,
 		len = roundup(len, 4);
 		ampdu_len += (len + (ndelim + 1) * AMPDU_DELIMITER_LEN);
 
-		dma_len += (u16) pkttotlen(p);
+		dma_len += (u16) bcm_pkttotlen(p);
 
 		BCMMSG(wlc->wiphy, "wl%d: ampdu_len %d"
 			" seg_cnt %d null delim %d\n",
@@ -718,7 +718,7 @@ wlc_sendampdu(struct ampdu_info *ampdu, struct wlc_txq_info *qi,
 			    ((u8) (p->priority) == tid)) {
 
 				plen =
-				    pkttotlen(p) + AMPDU_MAX_MPDU_OVERHEAD;
+				    bcm_pkttotlen(p) + AMPDU_MAX_MPDU_OVERHEAD;
 				plen = max(scb_ampdu->min_len, plen);
 
 				if ((plen + ampdu_len) > maxlen) {
@@ -735,7 +735,7 @@ wlc_sendampdu(struct ampdu_info *ampdu, struct wlc_txq_info *qi,
 					p = NULL;
 					continue;
 				}
-				p = pktq_pdeq(&qi->q, prec);
+				p = bcm_pktq_pdeq(&qi->q, prec);
 			} else {
 				p = NULL;
 			}
@@ -899,7 +899,7 @@ wlc_ampdu_dotxstatus(struct ampdu_info *ampdu, struct scb *scb,
 			tx_info = IEEE80211_SKB_CB(p);
 			txh = (d11txh_t *) p->data;
 			mcl = le16_to_cpu(txh->MacTxControlLow);
-			pkt_buf_free_skb(p);
+			bcm_pkt_buf_free_skb(p);
 			/* break out if last packet of ampdu */
 			if (((mcl & TXC_AMPDU_MASK) >> TXC_AMPDU_SHIFT) ==
 			    TXC_AMPDU_LAST)
@@ -1034,7 +1034,7 @@ wlc_ampdu_dotxstatus_complete(struct ampdu_info *ampdu, struct scb *scb,
 				  txs->phyerr);
 
 			if (WL_ERROR_ON()) {
-				prpkt("txpkt (AMPDU)", p);
+				bcm_prpkt("txpkt (AMPDU)", p);
 				wlc_print_txdesc((d11txh_t *) p->data);
 			}
 			wlc_print_txstatus(txs);
@@ -1148,7 +1148,7 @@ ampdu_cleanup_tid_ini(struct ampdu_info *ampdu, scb_ampdu_t *scb_ampdu, u8 tid,
 	scb_ampdu = SCB_AMPDU_CUBBY(ampdu, ini->scb);
 
 	/* free all buffered tx packets */
-	pktq_pflush(&scb_ampdu->txq, ini->tid, true, NULL, 0);
+	bcm_pktq_pflush(&scb_ampdu->txq, ini->tid, true, NULL, 0);
 }
 
 /* initialize the initiator code for tid */
@@ -1337,7 +1337,7 @@ void wlc_ampdu_flush(struct wlc_info *wlc,
 	ampdu_pars.sta = sta;
 	ampdu_pars.tid = tid;
 	for (prec = 0; prec < pq->num_prec; prec++) {
-		pktq_pflush(pq, prec, true, cb_del_ampdu_pkt,
+		bcm_pktq_pflush(pq, prec, true, cb_del_ampdu_pkt,
 			    (int)&ampdu_pars);
 	}
 	wlc_inval_dma_pkts(wlc->hw, sta, dma_cb_fn_ampdu);

drivers/staging/brcm80211/brcmsmac/wlc_channel.c

@@ -1494,7 +1494,7 @@ wlc_valid_chanspec_ext(wlc_cm_info_t *wlc_cm, chanspec_t chspec, bool dualband)
 	u8 channel = CHSPEC_CHANNEL(chspec);
 
 	/* check the chanspec */
-	if (wf_chspec_malformed(chspec)) {
+	if (bcm_chspec_malformed(chspec)) {
 		wiphy_err(wlc->wiphy, "wl%d: malformed chanspec 0x%x\n",
 			wlc->pub->unit, chspec);
 		return false;

drivers/staging/brcm80211/brcmsmac/wlc_main.c

@@ -709,8 +709,8 @@ static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc)
 
 	local = WLC_TXPWR_MAX;
 	if (wlc->pub->associated &&
-	    (wf_chspec_ctlchan(wlc->chanspec) ==
-	     wf_chspec_ctlchan(wlc->home_chanspec))) {
+	    (bcm_chspec_ctlchan(wlc->chanspec) ==
+	     bcm_chspec_ctlchan(wlc->home_chanspec))) {
 
 		/* get the local power constraint if we are on the AP's
 		 * channel [802.11h, 7.3.2.13]
@@ -2521,7 +2521,7 @@ uint wlc_down(struct wlc_info *wlc)
 
 	/* flush tx queues */
 	for (qi = wlc->tx_queues; qi != NULL; qi = qi->next) {
-		pktq_flush(&qi->q, true, NULL, 0);
+		bcm_pktq_flush(&qi->q, true, NULL, 0);
 	}
 
 	callbacks += wlc_bmac_down_finish(wlc->hw);
@@ -4682,7 +4682,8 @@ void wlc_print_txdesc(d11txh_t *txh)
 	char hexbuf[256];
 
 	/* add plcp header along with txh descriptor */
-	prhex("Raw TxDesc + plcp header", (unsigned char *) txh, sizeof(d11txh_t) + 48);
+	bcm_prhex("Raw TxDesc + plcp header", (unsigned char *) txh,
+		sizeof(d11txh_t) + 48);
 
 	printk(KERN_DEBUG "TxCtlLow: %04x ", mtcl);
 	printk(KERN_DEBUG "TxCtlHigh: %04x ", mtch);
@@ -4753,7 +4754,7 @@ void wlc_print_rxh(d11rxhdr_t *rxh)
 		{0, NULL}
 	};
 
-	prhex("Raw RxDesc", (unsigned char *) rxh, sizeof(d11rxhdr_t));
+	bcm_prhex("Raw RxDesc", (unsigned char *) rxh, sizeof(d11rxhdr_t));
 
 	bcm_format_flags(macstat_flags, macstatus1, flagstr, 64);
 
@@ -4829,7 +4830,7 @@ wlc_prec_enq_head(struct wlc_info *wlc, struct pktq *q, struct sk_buff *pkt,
 	if (pktq_pfull(q, prec))
 		eprec = prec;
 	else if (pktq_full(q)) {
-		p = pktq_peek_tail(q, &eprec);
+		p = bcm_pktq_peek_tail(q, &eprec);
 		if (eprec > prec) {
 			wiphy_err(wlc->wiphy, "%s: Failing: eprec %d > prec %d"
 				  "\n", __func__, eprec, prec);
@@ -4851,25 +4852,25 @@ wlc_prec_enq_head(struct wlc_info *wlc, struct pktq *q, struct sk_buff *pkt,
 		}
 
 		/* Evict packet according to discard policy */
-		p = discard_oldest ? pktq_pdeq(q, eprec) : pktq_pdeq_tail(q,
-									  eprec);
+		p = discard_oldest ? bcm_pktq_pdeq(q, eprec) :
+			bcm_pktq_pdeq_tail(q, eprec);
 		/* Increment wme stats */
 		if (WME_ENAB(wlc->pub)) {
 			WLCNTINCR(wlc->pub->_wme_cnt->
 				  tx_failed[WME_PRIO2AC(p->priority)].packets);
 			WLCNTADD(wlc->pub->_wme_cnt->
 				 tx_failed[WME_PRIO2AC(p->priority)].bytes,
-				 pkttotlen(p));
+				 bcm_pkttotlen(p));
 		}
-		pkt_buf_free_skb(p);
+		bcm_pkt_buf_free_skb(p);
 		wlc->pub->_cnt->txnobuf++;
 	}
 
 	/* Enqueue */
 	if (head)
-		p = pktq_penq_head(q, prec, pkt);
+		p = bcm_pktq_penq_head(q, prec, pkt);
 	else
-		p = pktq_penq(q, prec, pkt);
+		p = bcm_pktq_penq(q, prec, pkt);
 
 	return true;
 }
@@ -4894,7 +4895,7 @@ void BCMFASTPATH wlc_txq_enq(void *ctx, struct scb *scb, struct sk_buff *sdu,
 		 * XXX we might hit this condtion in case
 		 * packet flooding from mac80211 stack
 		 */
-		pkt_buf_free_skb(sdu);
+		bcm_pkt_buf_free_skb(sdu);
 		wlc->pub->_cnt->txnobuf++;
 	}
 
@@ -4961,7 +4962,7 @@ void BCMFASTPATH wlc_send_q(struct wlc_info *wlc)
 	/* Send all the enq'd pkts that we can.
 	 * Dequeue packets with precedence with empty HW fifo only
 	 */
-	while (prec_map && (pkt[0] = pktq_mdeq(q, prec_map, &prec))) {
+	while (prec_map && (pkt[0] = bcm_pktq_mdeq(q, prec_map, &prec))) {
 		tx_info = IEEE80211_SKB_CB(pkt[0]);
 		if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
 			err = wlc_sendampdu(wlc->ampdu, qi, pkt, prec);
@@ -4976,7 +4977,7 @@ void BCMFASTPATH wlc_send_q(struct wlc_info *wlc)
 		}
 
 		if (err == -EBUSY) {
-			pktq_penq_head(q, prec, pkt[0]);
+			bcm_pktq_penq_head(q, prec, pkt[0]);
 			/* If send failed due to any other reason than a change in
 			 * HW FIFO condition, quit. Otherwise, read the new prec_map!
 			 */
@@ -5444,7 +5445,7 @@ wlc_d11hdrs_mac80211(struct wlc_info *wlc, struct ieee80211_hw *hw,
 	qos = ieee80211_is_data_qos(h->frame_control);
 
 	/* compute length of frame in bytes for use in PLCP computations */
-	len = pkttotlen(p);
+	len = bcm_pkttotlen(p);
 	phylen = len + FCS_LEN;
 
 	/* If WEP enabled, add room in phylen for the additional bytes of
@@ -6330,7 +6331,7 @@ wlc_dotxstatus(struct wlc_info *wlc, tx_status_t *txs, u32 frm_tx2)
 			tx_info->flags |= IEEE80211_TX_STAT_ACK;
 	}
 
-	totlen = pkttotlen(p);
+	totlen = bcm_pkttotlen(p);
 	free_pdu = true;
 
 	wlc_txfifo_complete(wlc, queue, 1);
@@ -6353,7 +6354,7 @@ wlc_dotxstatus(struct wlc_info *wlc, tx_status_t *txs, u32 frm_tx2)
 
  fatal:
 	if (p)
-		pkt_buf_free_skb(p);
+		bcm_pkt_buf_free_skb(p);
 
 	return true;
 
@@ -6758,7 +6759,7 @@ void BCMFASTPATH wlc_recv(struct wlc_info *wlc, struct sk_buff *p)
 	return;
 
  toss:
-	pkt_buf_free_skb(p);
+	bcm_pkt_buf_free_skb(p);
 }
 
 /* calculate frame duration for Mixed-mode L-SIG spoofing, return
@@ -8049,7 +8050,7 @@ static struct wlc_txq_info *wlc_txq_alloc(struct wlc_info *wlc)
 		 * leave PS mode. The watermark for flowcontrol to OS packets
 		 * will remain the same
 		 */
-		pktq_init(&qi->q, WLC_PREC_COUNT,
+		bcm_pktq_init(&qi->q, WLC_PREC_COUNT,
 			  (2 * wlc->pub->tunables->datahiwat) + PKTQ_LEN_DEFAULT
 			  + wlc->pub->psq_pkts_total);
 
@@ -8133,7 +8134,7 @@ void wlc_wait_for_tx_completion(struct wlc_info *wlc, bool drop)
 {
 	/* flush packet queue when requested */
 	if (drop)
-		pktq_flush(&wlc->pkt_queue->q, false, NULL, 0);
+		bcm_pktq_flush(&wlc->pkt_queue->q, false, NULL, 0);
 
 	/* wait for queue and DMA fifos to run dry */
 	while (!pktq_empty(&wlc->pkt_queue->q) ||

drivers/staging/brcm80211/include/bcmutils.h

@@ -87,25 +87,26 @@
 #define pktq_ppeek(pq, prec)            ((pq)->q[prec].head)
 #define pktq_ppeek_tail(pq, prec)       ((pq)->q[prec].tail)
 
-extern struct sk_buff *pktq_penq(struct pktq *pq, int prec,
+extern struct sk_buff *bcm_pktq_penq(struct pktq *pq, int prec,
 				 struct sk_buff *p);
-extern struct sk_buff *pktq_penq_head(struct pktq *pq, int prec,
+extern struct sk_buff *bcm_pktq_penq_head(struct pktq *pq, int prec,
 				      struct sk_buff *p);
-extern struct sk_buff *pktq_pdeq(struct pktq *pq, int prec);
-extern struct sk_buff *pktq_pdeq_tail(struct pktq *pq, int prec);
+extern struct sk_buff *bcm_pktq_pdeq(struct pktq *pq, int prec);
+extern struct sk_buff *bcm_pktq_pdeq_tail(struct pktq *pq, int prec);
 
 /* packet primitives */
-extern struct sk_buff *pkt_buf_get_skb(uint len);
-extern void pkt_buf_free_skb(struct sk_buff *skb);
+extern struct sk_buff *bcm_pkt_buf_get_skb(uint len);
+extern void bcm_pkt_buf_free_skb(struct sk_buff *skb);
 
 /* Empty the queue at particular precedence level */
-extern void pktq_pflush(struct pktq *pq, int prec,
+extern void bcm_pktq_pflush(struct pktq *pq, int prec,
 	bool dir, ifpkt_cb_t fn, int arg);
 
 /* operations on a set of precedences in packet queue */
 
-extern int pktq_mlen(struct pktq *pq, uint prec_bmp);
-extern struct sk_buff *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
+extern int bcm_pktq_mlen(struct pktq *pq, uint prec_bmp);
+extern struct sk_buff *bcm_pktq_mdeq(struct pktq *pq, uint prec_bmp,
+	int *prec_out);
 
 /* operations on packet queue as a whole */
 
@@ -116,35 +117,35 @@ extern struct sk_buff *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
 #define pktq_empty(pq)                  ((pq)->len == 0)
 
 /* operations for single precedence queues */
-#define pktenq(pq, p)		pktq_penq(((struct pktq *)pq), 0, (p))
-#define pktenq_head(pq, p)	pktq_penq_head(((struct pktq *)pq), 0, (p))
-#define pktdeq(pq)		pktq_pdeq(((struct pktq *)pq), 0)
-#define pktdeq_tail(pq)		pktq_pdeq_tail(((struct pktq *)pq), 0)
-#define pktqinit(pq, len) pktq_init(((struct pktq *)pq), 1, len)
+#define pktenq(pq, p)		bcm_pktq_penq(((struct pktq *)pq), 0, (p))
+#define pktenq_head(pq, p)	bcm_pktq_penq_head(((struct pktq *)pq), 0, (p))
+#define pktdeq(pq)		bcm_pktq_pdeq(((struct pktq *)pq), 0)
+#define pktdeq_tail(pq)		bcm_pktq_pdeq_tail(((struct pktq *)pq), 0)
+#define pktqinit(pq, len)	bcm_pktq_init(((struct pktq *)pq), 1, len)
 
-	extern void pktq_init(struct pktq *pq, int num_prec, int max_len);
+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 *pktq_peek_tail(struct pktq *pq, int *prec_out);
-	extern void pktq_flush(struct pktq *pq, bool dir,
-		ifpkt_cb_t fn, int arg);
+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);
 
 /* externs */
 /* packet */
-	extern uint pktfrombuf(struct sk_buff *p,
-			       uint offset, int len, unsigned char *buf);
-	extern uint pkttotlen(struct sk_buff *p);
+extern uint bcm_pktfrombuf(struct sk_buff *p,
+	uint offset, int len, unsigned char *buf);
+extern uint bcm_pkttotlen(struct sk_buff *p);
 
 /* ethernet address */
-	extern int bcm_ether_atoe(char *p, u8 *ea);
+extern int bcm_ether_atoe(char *p, u8 *ea);
 
 /* ip address */
 	struct ipv4_addr;
 	extern char *bcm_ip_ntoa(struct ipv4_addr *ia, char *buf);
 
 #ifdef BCMDBG
-	extern void prpkt(const char *msg, struct sk_buff *p0);
+extern void bcm_prpkt(const char *msg, struct sk_buff *p0);
 #else
-#define prpkt(a, b)
+#define bcm_prpkt(a, b)
 #endif				/* BCMDBG */
 
 #define bcm_perf_enable()
@@ -467,7 +468,7 @@ extern struct sk_buff *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
 
 /* externs */
 /* crc */
-	extern u8 hndcrc8(u8 *p, uint nbytes, u8 crc);
+extern u8 bcm_crc8(u8 *p, uint nbytes, u8 crc);
 /* format/print */
 #if defined(BCMDBG)
 	extern int bcm_format_flags(const bcm_bit_desc_t *bd, u32 flags,
@@ -475,7 +476,7 @@ extern struct sk_buff *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
 	extern int bcm_format_hex(char *str, const void *bytes, int len);
 #endif
 	extern char *bcm_chipname(uint chipid, char *buf, uint len);
-	extern void prhex(const char *msg, unsigned char *buf, uint len);
+	extern void bcm_prhex(const char *msg, unsigned char *buf, uint len);
 
 	extern bcm_tlv_t *bcm_parse_tlvs(void *buf, int buflen,
 						    uint key);

drivers/staging/brcm80211/include/bcmwifi.h

@@ -134,14 +134,14 @@ typedef u16 chanspec_t;
  * combination could be legal given any set of circumstances.
  * RETURNS: true is the chanspec is malformed, false if it looks good.
  */
-extern bool wf_chspec_malformed(chanspec_t chanspec);
+extern bool bcm_chspec_malformed(chanspec_t chanspec);
 
 /*
  * This function returns the channel number that control traffic is being sent on, for legacy
  * channels this is just the channel number, for 40MHZ channels it is the upper or lowre 20MHZ
  * sideband depending on the chanspec selected
  */
-extern u8 wf_chspec_ctlchan(chanspec_t chspec);
+extern u8 bcm_chspec_ctlchan(chanspec_t chspec);
 
 /*
  * Return the channel number for a given frequency and base frequency.
@@ -162,6 +162,6 @@ extern u8 wf_chspec_ctlchan(chanspec_t chspec);
  *
  * Reference 802.11 REVma, section 17.3.8.3, and 802.11B section 18.4.6.2
  */
-extern int wf_mhz2channel(uint freq, uint start_factor);
+extern int bcm_mhz2channel(uint freq, uint start_factor);
 
 #endif				/* _bcmwifi_h_ */

drivers/staging/brcm80211/util/Makefile

+#
+# Makefile fragment for Broadcom 802.11n Networking Device Driver Utilities
+#
+# Copyright (c) 2011 Broadcom Corporation
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+# OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+ccflags-y :=				\
+	-Idrivers/staging/brcm80211/util \
+	-Idrivers/staging/brcm80211/include
+
+BRCMUTIL_OFILES := \
+	bcmutils.o \
+	bcmwifi.o
+
+MODULEPFX := brcmutil
+
+obj-$(CONFIG_BRCMUTIL)	+= $(MODULEPFX).o
+$(MODULEPFX)-objs	= $(BRCMUTIL_OFILES)

drivers/staging/brcm80211/util/bcmutils.c

@@ -28,7 +28,12 @@
 #include <bcmdevs.h>
 #include <proto/802.11.h>
 
-struct sk_buff *BCMFASTPATH pkt_buf_get_skb(uint len)
+MODULE_AUTHOR("Broadcom Corporation");
+MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver utilities.");
+MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
+MODULE_LICENSE("Dual BSD/GPL");
+
+struct sk_buff *BCMFASTPATH bcm_pkt_buf_get_skb(uint len)
 {
 	struct sk_buff *skb;
 
@@ -40,9 +45,10 @@ struct sk_buff *BCMFASTPATH pkt_buf_get_skb(uint len)
 
 	return skb;
 }
+EXPORT_SYMBOL(bcm_pkt_buf_get_skb);
 
 /* Free the driver packet. Free the tag if present */
-void BCMFASTPATH pkt_buf_free_skb(struct sk_buff *skb)
+void BCMFASTPATH bcm_pkt_buf_free_skb(struct sk_buff *skb)
 {
 	struct sk_buff *nskb;
 	int nest = 0;
@@ -67,9 +73,11 @@ void BCMFASTPATH pkt_buf_free_skb(struct sk_buff *skb)
 		skb = nskb;
 	}
 }
+EXPORT_SYMBOL(bcm_pkt_buf_free_skb);
+
 
 /* copy a buffer into a pkt buffer chain */
-uint pktfrombuf(struct sk_buff *p, uint offset, int len,
+uint bcm_pktfrombuf(struct sk_buff *p, uint offset, int len,
 		unsigned char *buf)
 {
 	uint n, ret = 0;
@@ -96,8 +104,10 @@ uint pktfrombuf(struct sk_buff *p, uint offset, int len,
 
 	return ret;
 }
+EXPORT_SYMBOL(bcm_pktfrombuf);
+
 /* return total length of buffer chain */
-uint BCMFASTPATH pkttotlen(struct sk_buff *p)
+uint BCMFASTPATH bcm_pkttotlen(struct sk_buff *p)
 {
 	uint total;
 
@@ -106,12 +116,13 @@ uint BCMFASTPATH pkttotlen(struct sk_buff *p)
 		total += p->len;
 	return total;
 }
+EXPORT_SYMBOL(bcm_pkttotlen);
 
 /*
  * osl multiple-precedence packet queue
  * hi_prec is always >= the number of the highest non-empty precedence
  */
-struct sk_buff *BCMFASTPATH pktq_penq(struct pktq *pq, int prec,
+struct sk_buff *BCMFASTPATH bcm_pktq_penq(struct pktq *pq, int prec,
 				      struct sk_buff *p)
 {
 	struct pktq_prec *q;
@@ -136,8 +147,9 @@ struct sk_buff *BCMFASTPATH pktq_penq(struct pktq *pq, int prec,
 
 	return p;
 }
+EXPORT_SYMBOL(bcm_pktq_penq);
 
-struct sk_buff *BCMFASTPATH pktq_penq_head(struct pktq *pq, int prec,
+struct sk_buff *BCMFASTPATH bcm_pktq_penq_head(struct pktq *pq, int prec,
 					   struct sk_buff *p)
 {
 	struct pktq_prec *q;
@@ -161,8 +173,9 @@ struct sk_buff *BCMFASTPATH pktq_penq_head(struct pktq *pq, int prec,
 
 	return p;
 }
+EXPORT_SYMBOL(bcm_pktq_penq_head);
 
-struct sk_buff *BCMFASTPATH pktq_pdeq(struct pktq *pq, int prec)
+struct sk_buff *BCMFASTPATH bcm_pktq_pdeq(struct pktq *pq, int prec)
 {
 	struct pktq_prec *q;
 	struct sk_buff *p;
@@ -185,8 +198,9 @@ struct sk_buff *BCMFASTPATH pktq_pdeq(struct pktq *pq, int prec)
 
 	return p;
 }
+EXPORT_SYMBOL(bcm_pktq_pdeq);
 
-struct sk_buff *BCMFASTPATH pktq_pdeq_tail(struct pktq *pq, int prec)
+struct sk_buff *BCMFASTPATH bcm_pktq_pdeq_tail(struct pktq *pq, int prec)
 {
 	struct pktq_prec *q;
 	struct sk_buff *p, *prev;
@@ -212,9 +226,10 @@ struct sk_buff *BCMFASTPATH pktq_pdeq_tail(struct pktq *pq, int prec)
 
 	return p;
 }
+EXPORT_SYMBOL(bcm_pktq_pdeq_tail);
 
 void
-pktq_pflush(struct pktq *pq, int prec, bool dir,
+bcm_pktq_pflush(struct pktq *pq, int prec, bool dir,
 	    ifpkt_cb_t fn, int arg)
 {
 	struct pktq_prec *q;
@@ -230,7 +245,7 @@ pktq_pflush(struct pktq *pq, int prec, bool dir,
 			else
 				prev->prev = p->prev;
 			p->prev = NULL;
-			pkt_buf_free_skb(p);
+			bcm_pkt_buf_free_skb(p);
 			q->len--;
 			pq->len--;
 			p = (head ? q->head : prev->prev);
@@ -244,16 +259,18 @@ pktq_pflush(struct pktq *pq, int prec, bool dir,
 		q->tail = NULL;
 	}
 }
+EXPORT_SYMBOL(bcm_pktq_pflush);
 
-void pktq_flush(struct pktq *pq, bool dir,
+void bcm_pktq_flush(struct pktq *pq, bool dir,
 		ifpkt_cb_t fn, int arg)
 {
 	int prec;
 	for (prec = 0; prec < pq->num_prec; prec++)
-		pktq_pflush(pq, prec, dir, fn, arg);
+		bcm_pktq_pflush(pq, prec, dir, fn, arg);
 }
+EXPORT_SYMBOL(bcm_pktq_flush);
 
-void pktq_init(struct pktq *pq, int num_prec, int max_len)
+void bcm_pktq_init(struct pktq *pq, int num_prec, int max_len)
 {
 	int prec;
 
@@ -268,8 +285,9 @@ void pktq_init(struct pktq *pq, int num_prec, int max_len)
 	for (prec = 0; prec < num_prec; prec++)
 		pq->q[prec].max = pq->max;
 }
+EXPORT_SYMBOL(bcm_pktq_init);
 
-struct sk_buff *pktq_peek_tail(struct pktq *pq, int *prec_out)
+struct sk_buff *bcm_pktq_peek_tail(struct pktq *pq, int *prec_out)
 {
 	int prec;
 
@@ -285,9 +303,10 @@ struct sk_buff *pktq_peek_tail(struct pktq *pq, int *prec_out)
 
 	return pq->q[prec].tail;
 }
+EXPORT_SYMBOL(bcm_pktq_peek_tail);
 
 /* Return sum of lengths of a specific set of precedences */
-int pktq_mlen(struct pktq *pq, uint prec_bmp)
+int bcm_pktq_mlen(struct pktq *pq, uint prec_bmp)
 {
 	int prec, len;
 
@@ -299,8 +318,10 @@ int pktq_mlen(struct pktq *pq, uint prec_bmp)
 
 	return len;
 }
+EXPORT_SYMBOL(bcm_pktq_mlen);
+
 /* Priority dequeue from a specific set of precedences */
-struct sk_buff *BCMFASTPATH pktq_mdeq(struct pktq *pq, uint prec_bmp,
+struct sk_buff *BCMFASTPATH bcm_pktq_mdeq(struct pktq *pq, uint prec_bmp,
 				      int *prec_out)
 {
 	struct pktq_prec *q;
@@ -338,6 +359,7 @@ struct sk_buff *BCMFASTPATH pktq_mdeq(struct pktq *pq, uint prec_bmp,
 
 	return p;
 }
+EXPORT_SYMBOL(bcm_pktq_mdeq);
 
 /* parse a xx:xx:xx:xx:xx:xx format ethernet address */
 int bcm_ether_atoe(char *p, u8 *ea)
@@ -352,10 +374,11 @@ int bcm_ether_atoe(char *p, u8 *ea)
 
 	return i == 6;
 }
+EXPORT_SYMBOL(bcm_ether_atoe);
 
 #if defined(BCMDBG)
 /* pretty hex print a pkt buffer chain */
-void prpkt(const char *msg, struct sk_buff *p0)
+void bcm_prpkt(const char *msg, struct sk_buff *p0)
 {
 	struct sk_buff *p;
 
@@ -363,8 +386,9 @@ void prpkt(const char *msg, struct sk_buff *p0)
 		printk(KERN_DEBUG "%s:\n", msg);
 
 	for (p = p0; p; p = p->next)
-		prhex(NULL, p->data, p->len);
+		bcm_prhex(NULL, p->data, p->len);
 }
+EXPORT_SYMBOL(bcm_prpkt);
 #endif				/* defined(BCMDBG) */
 
 /* iovar table lookup */
@@ -388,6 +412,7 @@ const bcm_iovar_t *bcm_iovar_lookup(const bcm_iovar_t *table, const char *name)
 
 	return NULL;		/* var name not found */
 }
+EXPORT_SYMBOL(bcm_iovar_lookup);
 
 int bcm_iovar_lencheck(const bcm_iovar_t *vi, void *arg, int len, bool set)
 {
@@ -432,6 +457,7 @@ int bcm_iovar_lencheck(const bcm_iovar_t *vi, void *arg, int len, bool set)
 
 	return bcmerror;
 }
+EXPORT_SYMBOL(bcm_iovar_lencheck);
 
 /*******************************************************************************
  * crc8
@@ -490,7 +516,7 @@ static const u8 crc8_table[256] = {
 	0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F
 };
 
-u8 hndcrc8(u8 *pdata,	/* pointer to array of data to process */
+u8 bcm_crc8(u8 *pdata,	/* pointer to array of data to process */
 			 uint nbytes,	/* number of input data bytes to process */
 			 u8 crc	/* either CRC8_INIT_VALUE or previous return value */
     ) {
@@ -500,6 +526,7 @@ u8 hndcrc8(u8 *pdata,	/* pointer to array of data to process */
 
 	return crc;
 }
+EXPORT_SYMBOL(bcm_crc8);
 
 /*
  * Traverse a string of 1-byte tag/1-byte length/variable-length value
@@ -528,6 +555,7 @@ bcm_tlv_t *bcm_parse_tlvs(void *buf, int buflen, uint key)
 
 	return NULL;
 }
+EXPORT_SYMBOL(bcm_parse_tlvs);
 
 
 #if defined(BCMDBG)
@@ -583,6 +611,7 @@ bcm_format_flags(const bcm_bit_desc_t *bd, u32 flags, char *buf, int len)
 
 	return (int)(p - buf);
 }
+EXPORT_SYMBOL(bcm_format_flags);
 
 /* print bytes formatted as hex to a string. return the resulting string length */
 int bcm_format_hex(char *str, const void *bytes, int len)
@@ -597,10 +626,11 @@ int bcm_format_hex(char *str, const void *bytes, int len)
 	}
 	return (int)(p - str);
 }
+EXPORT_SYMBOL(bcm_format_hex);
 #endif				/* defined(BCMDBG) */
 
 /* pretty hex print a contiguous buffer */
-void prhex(const char *msg, unsigned char *buf, uint nbytes)
+void bcm_prhex(const char *msg, unsigned char *buf, uint nbytes)
 {
 	char line[128], *p;
 	int len = sizeof(line);
@@ -634,6 +664,7 @@ void prhex(const char *msg, unsigned char *buf, uint nbytes)
 	if (p != line)
 		printk(KERN_DEBUG "%s\n", line);
 }
+EXPORT_SYMBOL(bcm_prhex);
 
 char *bcm_chipname(uint chipid, char *buf, uint len)
 {
@@ -643,6 +674,7 @@ char *bcm_chipname(uint chipid, char *buf, uint len)
 	snprintf(buf, len, fmt, chipid);
 	return buf;
 }
+EXPORT_SYMBOL(bcm_chipname);
 
 uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf, uint buflen)
 {
@@ -661,6 +693,7 @@ uint bcm_mkiovar(char *name, char *data, uint datalen, char *buf, uint buflen)
 
 	return len;
 }
+EXPORT_SYMBOL(bcm_mkiovar);
 
 /* Quarter dBm units to mW
  * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
@@ -715,6 +748,8 @@ u16 bcm_qdbm_to_mw(u8 qdbm)
 	 */
 	return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
 }
+EXPORT_SYMBOL(bcm_qdbm_to_mw);
+
 u8 bcm_mw_to_qdbm(u16 mw)
 {
 	u8 qdbm;
@@ -745,6 +780,8 @@ u8 bcm_mw_to_qdbm(u16 mw)
 
 	return qdbm;
 }
+EXPORT_SYMBOL(bcm_mw_to_qdbm);
+
 uint bcm_bitcount(u8 *bitmap, uint length)
 {
 	uint bitcount = 0, i;
@@ -758,12 +795,15 @@ uint bcm_bitcount(u8 *bitmap, uint length)
 	}
 	return bitcount;
 }
+EXPORT_SYMBOL(bcm_bitcount);
+
 /* Initialization of bcmstrbuf structure */
 void bcm_binit(struct bcmstrbuf *b, char *buf, uint size)
 {
 	b->origsize = b->size = size;
 	b->origbuf = b->buf = buf;
 }
+EXPORT_SYMBOL(bcm_binit);
 
 /* Buffer sprintf wrapper to guard against buffer overflow */
 int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...)
@@ -789,3 +829,4 @@ int bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...)
 
 	return r;
 }
+EXPORT_SYMBOL(bcm_bprintf);

drivers/staging/brcm80211/util/bcmwifi.c

@@ -15,6 +15,7 @@
  */
 #include <linux/ctype.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <bcmdefs.h>
 #include <bcmutils.h>
 #include <bcmwifi.h>
@@ -25,7 +26,7 @@
  * combination could be legal given any set of circumstances.
  * RETURNS: true is the chanspec is malformed, false if it looks good.
  */
-bool wf_chspec_malformed(chanspec_t chanspec)
+bool bcm_chspec_malformed(chanspec_t chanspec)
 {
 	/* must be 2G or 5G band */
 	if (!CHSPEC_IS5G(chanspec) && !CHSPEC_IS2G(chanspec))
@@ -45,13 +46,14 @@ bool wf_chspec_malformed(chanspec_t chanspec)
 
 	return false;
 }
+EXPORT_SYMBOL(bcm_chspec_malformed);
 
 /*
  * This function returns the channel number that control traffic is being sent on, for legacy
  * channels this is just the channel number, for 40MHZ channels it is the upper or lowre 20MHZ
  * sideband depending on the chanspec selected
  */
-u8 wf_chspec_ctlchan(chanspec_t chspec)
+u8 bcm_chspec_ctlchan(chanspec_t chspec)
 {
 	u8 ctl_chan;
 
@@ -74,6 +76,7 @@ u8 wf_chspec_ctlchan(chanspec_t chspec)
 
 	return ctl_chan;
 }
+EXPORT_SYMBOL(bcm_chspec_ctlchan);
 
 /*
  * Return the channel number for a given frequency and base frequency.
@@ -94,7 +97,7 @@ u8 wf_chspec_ctlchan(chanspec_t chspec)
  *
  * Reference 802.11 REVma, section 17.3.8.3, and 802.11B section 18.4.6.2
  */
-int wf_mhz2channel(uint freq, uint start_factor)
+int bcm_mhz2channel(uint freq, uint start_factor)
 {
 	int ch = -1;
 	uint base;
@@ -130,4 +133,5 @@ int wf_mhz2channel(uint freq, uint start_factor)
 
 	return ch;
 }
+EXPORT_SYMBOL(bcm_mhz2channel);