staging: brcm80211: remove macro usage for sk_buff release

PKTFREE macro calls osl_pktfree. This function has been renamed to
pkt_buf_free_skb as it comprises of functionality additional to
dev_kfree_skb(_any) function and to get rid of the OSL concept in
this driver.
Reviewed-by: NBrett Rudley <brudley@broadcom.com>
Reviewed-by: NDowan Kim <dowan@broadcom.com>
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc.c

@@ -1057,7 +1057,7 @@ sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint write,
 		if (!write)
 			bcopy(mypkt->data, buffer, buflen_u);
 
-		PKTFREE(sd->osh, mypkt, write ? true : false);
+		pkt_buf_free_skb(sd->osh, mypkt, write ? true : false);
 	} else if (((u32) (pkt->data) & DMA_ALIGN_MASK) != 0) {
 		/* Case 2: We have a packet, but it is unaligned. */
 
@@ -1084,7 +1084,7 @@ sdioh_request_buffer(sdioh_info_t *sd, uint pio_dma, uint fix_inc, uint write,
 		if (!write)
 			bcopy(mypkt->data, pkt->data, mypkt->len);
 
-		PKTFREE(sd->osh, mypkt, write ? true : false);
+		pkt_buf_free_skb(sd->osh, mypkt, write ? true : false);
 	} else {		/* case 3: We have a packet and
 				 it is aligned. */
 		sd_data(("%s: Aligned %s Packet, direct DMA\n",

drivers/staging/brcm80211/brcmfmac/dhd_common.c

@@ -368,7 +368,7 @@ bool dhd_prec_enq(dhd_pub_t *dhdp, struct pktq *q, struct sk_buff *pkt,
 			ASSERT(p);
 		}
 
-		PKTFREE(dhdp->osh, p, true);
+		pkt_buf_free_skb(dhdp->osh, p, true);
 	}
 
 	/* Enqueue */

drivers/staging/brcm80211/brcmfmac/dhd_sdio.c

@@ -144,7 +144,7 @@
  * bufpool was present for gspi bus.
  */
 #define PKTFREE2()		if ((bus->bus != SPI_BUS) || bus->usebufpool) \
-					PKTFREE(bus->dhd->osh, pkt, false);
+							pkt_buf_free_skb(bus->dhd->osh, pkt, false);
 DHD_SPINWAIT_SLEEP_INIT(sdioh_spinwait_sleep);
 extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
 			    uint len);
@@ -948,7 +948,7 @@ static int dhdsdio_txpkt(dhd_bus_t *bus, struct sk_buff *pkt, uint chan,
 			PKTALIGN(osh, new, pkt->len, DHD_SDALIGN);
 			bcopy(pkt->data, new->data, pkt->len);
 			if (free_pkt)
-				PKTFREE(osh, pkt, true);
+				pkt_buf_free_skb(osh, pkt, true);
 			/* free the pkt if canned one is not used */
 			free_pkt = true;
 			pkt = new;
@@ -1061,7 +1061,7 @@ static int dhdsdio_txpkt(dhd_bus_t *bus, struct sk_buff *pkt, uint chan,
 	dhd_os_sdlock(bus->dhd);
 
 	if (free_pkt)
-		PKTFREE(osh, pkt, true);
+		pkt_buf_free_skb(osh, pkt, true);
 
 	return ret;
 }
@@ -1112,7 +1112,7 @@ int dhd_bus_txdata(struct dhd_bus *bus, struct sk_buff *pkt)
 		if (dhd_prec_enq(bus->dhd, &bus->txq, pkt, prec) == false) {
 			skb_pull(pkt, SDPCM_HDRLEN);
 			dhd_txcomplete(bus->dhd, pkt, false);
-			PKTFREE(osh, pkt, true);
+			pkt_buf_free_skb(osh, pkt, true);
 			DHD_ERROR(("%s: out of bus->txq !!!\n", __func__));
 			ret = BCME_NORESOURCE;
 		} else {
@@ -2882,10 +2882,10 @@ void dhd_bus_stop(struct dhd_bus *bus, bool enforce_mutex)
 
 	/* Clear any held glomming stuff */
 	if (bus->glomd)
-		PKTFREE(osh, bus->glomd, false);
+		pkt_buf_free_skb(osh, bus->glomd, false);
 
 	if (bus->glom)
-		PKTFREE(osh, bus->glom, false);
+		pkt_buf_free_skb(osh, bus->glom, false);
 
 	bus->glom = bus->glomd = NULL;
 
@@ -3276,13 +3276,13 @@ static u8 dhdsdio_rxglom(dhd_bus_t *bus, u8 rxseq)
 			pfirst = pnext = NULL;
 		} else {
 			if (pfirst)
-				PKTFREE(osh, pfirst, false);
+				pkt_buf_free_skb(osh, pfirst, false);
 			bus->glom = NULL;
 			num = 0;
 		}
 
 		/* Done with descriptor packet */
-		PKTFREE(osh, bus->glomd, false);
+		pkt_buf_free_skb(osh, bus->glomd, false);
 		bus->glomd = NULL;
 		bus->nextlen = 0;
 
@@ -3351,7 +3351,7 @@ static u8 dhdsdio_rxglom(dhd_bus_t *bus, u8 rxseq)
 				bus->glomerr = 0;
 				dhdsdio_rxfail(bus, true, false);
 				dhd_os_sdlock_rxq(bus->dhd);
-				PKTFREE(osh, bus->glom, false);
+				pkt_buf_free_skb(osh, bus->glom, false);
 				dhd_os_sdunlock_rxq(bus->dhd);
 				bus->rxglomfail++;
 				bus->glom = NULL;
@@ -3480,7 +3480,7 @@ static u8 dhdsdio_rxglom(dhd_bus_t *bus, u8 rxseq)
 				bus->glomerr = 0;
 				dhdsdio_rxfail(bus, true, false);
 				dhd_os_sdlock_rxq(bus->dhd);
-				PKTFREE(osh, bus->glom, false);
+				pkt_buf_free_skb(osh, bus->glom, false);
 				dhd_os_sdunlock_rxq(bus->dhd);
 				bus->rxglomfail++;
 				bus->glom = NULL;
@@ -3528,7 +3528,7 @@ static u8 dhdsdio_rxglom(dhd_bus_t *bus, u8 rxseq)
 			skb_pull(pfirst, doff);
 
 			if (pfirst->len == 0) {
-				PKTFREE(bus->dhd->osh, pfirst, false);
+				pkt_buf_free_skb(bus->dhd->osh, pfirst, false);
 				if (plast) {
 					plast->next = pnext;
 				} else {
@@ -3541,7 +3541,7 @@ static u8 dhdsdio_rxglom(dhd_bus_t *bus, u8 rxseq)
 				DHD_ERROR(("%s: rx protocol error\n",
 					   __func__));
 				bus->dhd->rx_errors++;
-				PKTFREE(osh, pfirst, false);
+				pkt_buf_free_skb(osh, pfirst, false);
 				if (plast) {
 					plast->next = pnext;
 				} else {
@@ -3753,7 +3753,7 @@ static uint dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
 				if (sdret < 0) {
 					DHD_ERROR(("%s (nextlen): read %d bytes failed: %d\n",
 						__func__, rdlen, sdret));
-					PKTFREE(bus->dhd->osh, pkt, false);
+					pkt_buf_free_skb(bus->dhd->osh, pkt, false);
 					bus->dhd->rx_errors++;
 					dhd_os_sdunlock_rxq(bus->dhd);
 					/* Force retry w/normal header read.
@@ -3901,7 +3901,7 @@ static uint dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
 							     doff);
 					if (bus->usebufpool) {
 						dhd_os_sdlock_rxq(bus->dhd);
-						PKTFREE(bus->dhd->osh, pkt,
+						pkt_buf_free_skb(bus->dhd->osh, pkt,
 							false);
 						dhd_os_sdunlock_rxq(bus->dhd);
 					}
@@ -4127,7 +4127,7 @@ static uint dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
 				       ? "data" : "test")),
 				   sdret));
 			dhd_os_sdlock_rxq(bus->dhd);
-			PKTFREE(bus->dhd->osh, pkt, false);
+			pkt_buf_free_skb(bus->dhd->osh, pkt, false);
 			dhd_os_sdunlock_rxq(bus->dhd);
 			bus->dhd->rx_errors++;
 			dhdsdio_rxfail(bus, true, RETRYCHAN(chan));
@@ -4180,13 +4180,13 @@ static uint dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
 
 		if (pkt->len == 0) {
 			dhd_os_sdlock_rxq(bus->dhd);
-			PKTFREE(bus->dhd->osh, pkt, false);
+			pkt_buf_free_skb(bus->dhd->osh, pkt, false);
 			dhd_os_sdunlock_rxq(bus->dhd);
 			continue;
 		} else if (dhd_prot_hdrpull(bus->dhd, &ifidx, pkt) != 0) {
 			DHD_ERROR(("%s: rx protocol error\n", __func__));
 			dhd_os_sdlock_rxq(bus->dhd);
-			PKTFREE(bus->dhd->osh, pkt, false);
+			pkt_buf_free_skb(bus->dhd->osh, pkt, false);
 			dhd_os_sdunlock_rxq(bus->dhd);
 			bus->dhd->rx_errors++;
 			continue;
@@ -4694,7 +4694,7 @@ static void dhdsdio_pktgen(dhd_bus_t *bus)
 		default:
 			DHD_ERROR(("Unrecognized pktgen mode %d\n",
 				   bus->pktgen_mode));
-			PKTFREE(osh, pkt, true);
+			pkt_buf_free_skb(osh, pkt, true);
 			bus->pktgen_count = 0;
 			return;
 		}
@@ -4779,7 +4779,7 @@ static void dhdsdio_testrcv(dhd_bus_t *bus, struct sk_buff *pkt, uint seq)
 	if (pktlen < SDPCM_TEST_HDRLEN) {
 		DHD_ERROR(("dhdsdio_restrcv: toss runt frame, pktlen %d\n",
 			   pktlen));
-		PKTFREE(osh, pkt, false);
+		pkt_buf_free_skb(osh, pkt, false);
 		return;
 	}
 
@@ -4797,7 +4797,7 @@ static void dhdsdio_testrcv(dhd_bus_t *bus, struct sk_buff *pkt, uint seq)
 			DHD_ERROR(("dhdsdio_testrcv: frame length mismatch, "
 				"pktlen %d seq %d" " cmd %d extra %d len %d\n",
 				pktlen, seq, cmd, extra, len));
-			PKTFREE(osh, pkt, false);
+			pkt_buf_free_skb(osh, pkt, false);
 			return;
 		}
 	}
@@ -4812,14 +4812,14 @@ static void dhdsdio_testrcv(dhd_bus_t *bus, struct sk_buff *pkt, uint seq)
 			bus->pktgen_sent++;
 		} else {
 			bus->pktgen_fail++;
-			PKTFREE(osh, pkt, false);
+			pkt_buf_free_skb(osh, pkt, false);
 		}
 		bus->pktgen_rcvd++;
 		break;
 
 	case SDPCM_TEST_ECHORSP:
 		if (bus->ext_loop) {
-			PKTFREE(osh, pkt, false);
+			pkt_buf_free_skb(osh, pkt, false);
 			bus->pktgen_rcvd++;
 			break;
 		}
@@ -4832,12 +4832,12 @@ static void dhdsdio_testrcv(dhd_bus_t *bus, struct sk_buff *pkt, uint seq)
 				break;
 			}
 		}
-		PKTFREE(osh, pkt, false);
+		pkt_buf_free_skb(osh, pkt, false);
 		bus->pktgen_rcvd++;
 		break;
 
 	case SDPCM_TEST_DISCARD:
-		PKTFREE(osh, pkt, false);
+		pkt_buf_free_skb(osh, pkt, false);
 		bus->pktgen_rcvd++;
 		break;
 
@@ -4847,7 +4847,7 @@ static void dhdsdio_testrcv(dhd_bus_t *bus, struct sk_buff *pkt, uint seq)
 		DHD_INFO(("dhdsdio_testrcv: unsupported or unknown command, "
 			"pktlen %d seq %d" " cmd %d extra %d len %d\n",
 			pktlen, seq, cmd, extra, len));
-		PKTFREE(osh, pkt, false);
+		pkt_buf_free_skb(osh, pkt, false);
 		break;
 	}
 

drivers/staging/brcm80211/include/osl.h

@@ -208,9 +208,7 @@ extern void osl_dma_unmap(struct osl_info *osh, uint pa, uint size,
 #define	bcopy(src, dst, len)	memcpy((dst), (src), (len))
 
 /* packet primitives */
-#define	PKTFREE(osh, skb, send)	osl_pktfree((osh), (skb), (send))
-
 extern struct sk_buff *pkt_buf_get_skb(struct osl_info *osh, uint len);
-extern void osl_pktfree(struct osl_info *osh, void *skb, bool send);
+extern void pkt_buf_free_skb(struct osl_info *osh, struct sk_buff *skb, bool send);
 
 #endif /* _osl_h_ */

drivers/staging/brcm80211/sys/wlc_bmac.c

@@ -3336,7 +3336,7 @@ static bool wlc_bmac_txstatus_corerev4(wlc_hw_info_t *wlc_hw)
 
 		fatal = wlc_bmac_dotxstatus(wlc_hw, txs, 0);
 
-		PKTFREE(osh, status_p, false);
+		pkt_buf_free_skb(osh, status_p, false);
 	}
 
 	if (fatal)

drivers/staging/brcm80211/sys/wlc_mac80211.c

@@ -5052,7 +5052,7 @@ wlc_prec_enq_head(struct wlc_info *wlc, struct pktq *q, struct sk_buff *pkt,
 		}
 
 		ASSERT(0);
-		PKTFREE(wlc->osh, p, true);
+		pkt_buf_free_skb(wlc->osh, p, true);
 		WLCNTINCR(wlc->pub->_cnt->txnobuf);
 	}
 
@@ -5085,7 +5085,7 @@ void BCMFASTPATH wlc_txq_enq(void *ctx, struct scb *scb, struct sk_buff *sdu,
 				  wlc->pub->unit));
 
 		/* ASSERT(9 == 8); *//* XXX we might hit this condtion in case packet flooding from mac80211 stack */
-		PKTFREE(wlc->osh, sdu, true);
+		pkt_buf_free_skb(wlc->osh, sdu, true);
 		WLCNTINCR(wlc->pub->_cnt->txnobuf);
 	}
 
@@ -6671,7 +6671,7 @@ wlc_dotxstatus(struct wlc_info *wlc, tx_status_t *txs, u32 frm_tx2)
  fatal:
 	ASSERT(0);
 	if (p)
-		PKTFREE(osh, p, true);
+		pkt_buf_free_skb(osh, p, true);
 
 	return true;
 
@@ -7056,7 +7056,7 @@ void BCMFASTPATH wlc_recv(struct wlc_info *wlc, struct sk_buff *p)
 	return;
 
  toss:
-	PKTFREE(osh, p, false);
+	pkt_buf_free_skb(osh, p, false);
 }
 
 /* calculate frame duration for Mixed-mode L-SIG spoofing, return

drivers/staging/brcm80211/util/bcmutils.c

@@ -198,7 +198,7 @@ void pktq_pflush(struct osl_info *osh, struct pktq *pq, int prec, bool dir)
 	while (p) {
 		q->head = p->prev;
 		p->prev = NULL;
-		PKTFREE(osh, p, dir);
+		pkt_buf_free_skb(osh, p, dir);
 		q->len--;
 		pq->len--;
 		p = q->head;
@@ -232,7 +232,7 @@ pktq_pflush(struct osl_info *osh, struct pktq *pq, int prec, bool dir,
 			else
 				prev->prev = p->prev;
 			p->prev = NULL;
-			PKTFREE(osh, p, dir);
+			pkt_buf_free_skb(osh, p, dir);
 			q->len--;
 			pq->len--;
 			p = (head ? q->head : prev->prev);

drivers/staging/brcm80211/util/hnddma.c

@@ -1046,7 +1046,7 @@ 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));
-			PKTFREE(di->osh, head, false);
+			pkt_buf_free_skb(di->osh, head, false);
 			di->hnddma.rxgiants++;
 			goto next_frame;
 		}
@@ -1230,15 +1230,10 @@ static void _dma_rxreclaim(dma_info_t *di)
 {
 	void *p;
 
-	/* "unused local" warning suppression for OSLs that
-	 * define PKTFREE() without using the di->osh arg
-	 */
-	di = di;
-
 	DMA_TRACE(("%s: dma_rxreclaim\n", di->name));
 
 	while ((p = _dma_getnextrxp(di, true)))
-		PKTFREE(di->osh, p, false);
+		pkt_buf_free_skb(di->osh, p, false);
 }
 
 static void *BCMFASTPATH _dma_getnextrxp(dma_info_t *di, bool forceall)
@@ -1501,7 +1496,7 @@ static void dma32_txreclaim(dma_info_t *di, txd_range_t range)
 		return;
 
 	while ((p = dma32_getnexttxp(di, range)))
-		PKTFREE(di->osh, p, true);
+		pkt_buf_free_skb(di->osh, p, true);
 }
 
 static bool dma32_txstopped(dma_info_t *di)
@@ -1772,7 +1767,7 @@ static int dma32_txfast(dma_info_t *di, struct sk_buff *p0, bool commit)
 
  outoftxd:
 	DMA_ERROR(("%s: dma_txfast: out of txds\n", di->name));
-	PKTFREE(di->osh, p0, true);
+	pkt_buf_free_skb(di->osh, p0, true);
 	di->hnddma.txavail = 0;
 	di->hnddma.txnobuf++;
 	return -1;
@@ -2071,7 +2066,7 @@ 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))
-			PKTFREE(di->osh, p, true);
+			pkt_buf_free_skb(di->osh, p, true);
 	}
 }
 
@@ -2422,7 +2417,7 @@ 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));
-	PKTFREE(di->osh, p0, true);
+	pkt_buf_free_skb(di->osh, p0, true);
 	di->hnddma.txavail = 0;
 	di->hnddma.txnobuf++;
 	return -1;

drivers/staging/brcm80211/util/linux_osl.c

@@ -95,12 +95,11 @@ struct sk_buff *BCMFASTPATH pkt_buf_get_skb(struct osl_info *osh, uint len)
 }
 
 /* Free the driver packet. Free the tag if present */
-void BCMFASTPATH osl_pktfree(struct osl_info *osh, void *p, bool send)
+void BCMFASTPATH pkt_buf_free_skb(struct osl_info *osh, struct sk_buff *skb, bool send)
 {
-	struct sk_buff *skb, *nskb;
+	struct sk_buff *nskb;
 	int nest = 0;
 
-	skb = (struct sk_buff *)p;
 	ASSERT(skb);
 
 	/* perversion: we use skb->next to chain multi-skb packets */