diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c | 256 |
1 files changed, 186 insertions, 70 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c index b3c608ee37cf..5352dc1fdf3c 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c @@ -21,6 +21,7 @@ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/err.h> +#include <linux/jiffies.h> #include <uapi/linux/nl80211.h> #include <net/cfg80211.h> @@ -31,8 +32,11 @@ #include "dhd_dbg.h" #include "dhd_bus.h" #include "fwil.h" +#include "fwil_types.h" #include "fweh.h" #include "fwsignal.h" +#include "p2p.h" +#include "wl_cfg80211.h" /** * DOC: Firmware Signalling @@ -144,6 +148,9 @@ static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id) #define BRCMF_FWS_HTOD_FLAG_PKTFROMHOST 0x01 #define BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED 0x02 +#define BRCMF_FWS_RET_OK_NOSCHEDULE 0 +#define BRCMF_FWS_RET_OK_SCHEDULE 1 + /** * enum brcmf_fws_skb_state - indicates processing state of skb. * @@ -265,6 +272,9 @@ struct brcmf_skbuff_cb { brcmu_maskget32(txs, BRCMF_FWS_TXSTAT_ ## field ## _MASK, \ BRCMF_FWS_TXSTAT_ ## field ## _SHIFT) +/* How long to defer borrowing in jiffies */ +#define BRCMF_FWS_BORROW_DEFER_PERIOD (HZ / 10) + /** * enum brcmf_fws_fifo - fifo indices used by dongle firmware. * @@ -419,9 +429,11 @@ struct brcmf_fws_info { struct work_struct fws_dequeue_work; u32 fifo_enqpkt[BRCMF_FWS_FIFO_COUNT]; int fifo_credit[BRCMF_FWS_FIFO_COUNT]; + int credits_borrowed[BRCMF_FWS_FIFO_AC_VO + 1]; int deq_node_pos[BRCMF_FWS_FIFO_COUNT]; u32 fifo_credit_map; u32 fifo_delay_map; + unsigned long borrow_defer_timestamp; }; /* @@ -678,28 +690,28 @@ brcmf_fws_mac_descriptor_lookup(struct brcmf_fws_info *fws, u8 *ea) } static struct brcmf_fws_mac_descriptor* -brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, int ifidx, u8 *da) +brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, struct brcmf_if *ifp, + u8 *da) { struct brcmf_fws_mac_descriptor *entry = &fws->desc.other; - struct brcmf_if *ifp; bool multicast; + enum nl80211_iftype iftype; - brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx); + brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx); multicast = is_multicast_ether_addr(da); - ifp = fws->drvr->iflist[ifidx ? ifidx + 1 : 0]; - if (WARN_ON(!ifp)) - goto done; + iftype = brcmf_cfg80211_get_iftype(ifp); /* Multicast destination and P2P clients get the interface entry. * STA gets the interface entry if there is no exact match. For * example, TDLS destinations have their own entry. */ entry = NULL; - if (multicast && ifp->fws_desc) + if ((multicast || iftype == NL80211_IFTYPE_STATION || + iftype == NL80211_IFTYPE_P2P_CLIENT) && ifp->fws_desc) entry = ifp->fws_desc; - if (entry != NULL && multicast) + if (entry != NULL && iftype != NL80211_IFTYPE_STATION) goto done; entry = brcmf_fws_mac_descriptor_lookup(fws, da); @@ -711,26 +723,29 @@ 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_info *fws, + struct brcmf_fws_mac_descriptor *entry, + int fifo) { - bool ready; + struct brcmf_fws_mac_descriptor *if_entry; + bool closed; - /* - * destination entry is ready when firmware says it is OPEN - * and there are no packets enqueued for it. + /* for unique destination entries the related interface + * may be closed. */ - ready = entry->state == BRCMF_FWS_STATE_OPEN && - !entry->suppressed && - brcmu_pktq_mlen(&entry->psq, 3 << (fifo * 2)) == 0; - - /* - * Or when the destination entry is CLOSED, but firmware has - * specifically requested packets for this entry. + if (entry->mac_handle) { + if_entry = &fws->desc.iface[entry->interface_id]; + if (if_entry->state == BRCMF_FWS_STATE_CLOSE) + return true; + } + /* an entry is closed when the state is closed and + * the firmware did not request anything. */ - ready = ready || (entry->state == BRCMF_FWS_STATE_CLOSE && - (entry->requested_credit + entry->requested_packet)); - return ready; + closed = entry->state == BRCMF_FWS_STATE_CLOSE && + !entry->requested_credit && !entry->requested_packet; + + /* 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, @@ -825,11 +840,12 @@ brcmf_fws_flow_control_check(struct brcmf_fws_info *fws, struct pktq *pq, { struct brcmf_if *ifp = fws->drvr->iflist[if_id]; - brcmf_dbg(TRACE, - "enter: bssidx=%d, ifidx=%d\n", ifp->bssidx, ifp->ifidx); if (WARN_ON(!ifp)) return; + brcmf_dbg(TRACE, + "enter: bssidx=%d, ifidx=%d\n", ifp->bssidx, ifp->ifidx); + if ((ifp->netif_stop & BRCMF_NETIF_STOP_REASON_FWS_FC) && pq->len <= BRCMF_FWS_FLOWCONTROL_LOWATER) brcmf_txflowblock_if(ifp, @@ -861,9 +877,10 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data) entry = &fws->desc.nodes[mac_handle & 0x1F]; if (type == BRCMF_FWS_TYPE_MACDESC_DEL) { brcmf_dbg(TRACE, "deleting mac %pM idx %d\n", addr, ifidx); - if (entry->occupied) + if (entry->occupied) { + brcmf_fws_mac_desc_cleanup(fws, entry, -1); brcmf_fws_clear_mac_descriptor(entry); - else + } else fws->stats.mac_update_failed++; return 0; } @@ -914,12 +931,13 @@ static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws, entry->requested_credit = 0; if (type == BRCMF_FWS_TYPE_MAC_OPEN) { entry->state = BRCMF_FWS_STATE_OPEN; + return BRCMF_FWS_RET_OK_SCHEDULE; } else { entry->state = BRCMF_FWS_STATE_CLOSE; for (i = BRCMF_FWS_FIFO_AC_BE; i < NL80211_NUM_ACS; i++) brcmf_fws_tim_update(fws, entry, i); } - return 0; + return BRCMF_FWS_RET_OK_NOSCHEDULE; } static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws, @@ -946,10 +964,10 @@ static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws, switch (type) { case BRCMF_FWS_TYPE_INTERFACE_OPEN: entry->state = BRCMF_FWS_STATE_OPEN; - return 0; + return BRCMF_FWS_RET_OK_SCHEDULE; case BRCMF_FWS_TYPE_INTERFACE_CLOSE: entry->state = BRCMF_FWS_STATE_CLOSE; - return 0; + return BRCMF_FWS_RET_OK_NOSCHEDULE; default: ret = -EINVAL; break; @@ -979,15 +997,40 @@ static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type, entry->requested_packet = data[0]; entry->ac_bitmap = data[2]; - return 0; + return BRCMF_FWS_RET_OK_SCHEDULE; } static void brcmf_fws_return_credits(struct brcmf_fws_info *fws, u8 fifo, u8 credits) { + int lender_ac; + int *borrowed; + int *fifo_credit; + if (!credits) return; + if ((fifo == BRCMF_FWS_FIFO_AC_BE) && + (fws->credits_borrowed[0])) { + for (lender_ac = BRCMF_FWS_FIFO_AC_VO; lender_ac >= 0; + lender_ac--) { + borrowed = &fws->credits_borrowed[lender_ac]; + if (*borrowed) { + fws->fifo_credit_map |= (1 << lender_ac); + fifo_credit = &fws->fifo_credit[lender_ac]; + if (*borrowed >= credits) { + *borrowed -= credits; + *fifo_credit += credits; + return; + } else { + credits -= *borrowed; + *fifo_credit += *borrowed; + *borrowed = 0; + } + } + } + } + fws->fifo_credit_map |= 1 << fifo; fws->fifo_credit[fifo] += credits; } @@ -1074,7 +1117,7 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo) int num_nodes; int node_pos; int prec_out; - int pmsk = 3; + int pmsk; int i; table = (struct brcmf_fws_mac_descriptor *)&fws->desc; @@ -1083,11 +1126,14 @@ 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(fws, entry, fifo)) continue; if (entry->suppressed) pmsk = 2; + else + pmsk = 3; p = brcmu_pktq_mdeq(&entry->psq, pmsk << (fifo * 2), &prec_out); if (p == NULL) { if (entry->suppressed) { @@ -1250,7 +1296,7 @@ static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws, if (fws->fcmode != BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) { brcmf_dbg(INFO, "ignored\n"); - return 0; + return BRCMF_FWS_RET_OK_NOSCHEDULE; } brcmf_dbg(TRACE, "enter: data %pM\n", data); @@ -1259,8 +1305,7 @@ static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws, brcmf_dbg(INFO, "map: credit %x delay %x\n", fws->fifo_credit_map, fws->fifo_delay_map); - brcmf_fws_schedule_deq(fws); - return 0; + return BRCMF_FWS_RET_OK_SCHEDULE; } static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data) @@ -1344,6 +1389,8 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, u8 type; u8 len; u8 *data; + s32 status; + s32 err; brcmf_dbg(TRACE, "enter: ifidx %d, skblen %u, sig %d\n", ifidx, skb->len, signal_len); @@ -1363,6 +1410,7 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, data_len = signal_len; signal_data = skb->data; + status = BRCMF_FWS_RET_OK_NOSCHEDULE; while (data_len > 0) { /* extract tlv info */ type = signal_data[0]; @@ -1388,6 +1436,7 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, if (len != brcmf_fws_get_tlv_len(fws, type)) break; + err = BRCMF_FWS_RET_OK_NOSCHEDULE; switch (type) { case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS: case BRCMF_FWS_TYPE_COMP_TXSTATUS: @@ -1398,21 +1447,22 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, break; case BRCMF_FWS_TYPE_MAC_OPEN: case BRCMF_FWS_TYPE_MAC_CLOSE: - brcmf_fws_macdesc_state_indicate(fws, type, data); + err = brcmf_fws_macdesc_state_indicate(fws, type, data); break; case BRCMF_FWS_TYPE_INTERFACE_OPEN: case BRCMF_FWS_TYPE_INTERFACE_CLOSE: - brcmf_fws_interface_state_indicate(fws, type, data); + err = brcmf_fws_interface_state_indicate(fws, type, + data); break; case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT: case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET: - brcmf_fws_request_indicate(fws, type, data); + err = brcmf_fws_request_indicate(fws, type, data); break; case BRCMF_FWS_TYPE_TXSTATUS: brcmf_fws_txstatus_indicate(fws, data); break; case BRCMF_FWS_TYPE_FIFO_CREDITBACK: - brcmf_fws_fifocreditback_indicate(fws, data); + err = brcmf_fws_fifocreditback_indicate(fws, data); break; case BRCMF_FWS_TYPE_RSSI: brcmf_fws_rssi_indicate(fws, *data); @@ -1426,7 +1476,8 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, fws->stats.tlv_invalid_type++; break; } - + if (err == BRCMF_FWS_RET_OK_SCHEDULE) + status = BRCMF_FWS_RET_OK_SCHEDULE; signal_data += len + 2; data_len -= len + 2; } @@ -1434,6 +1485,9 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len, if (data_len != 0) fws->stats.tlv_parse_failed++; + if (status == BRCMF_FWS_RET_OK_SCHEDULE) + brcmf_fws_schedule_deq(fws); + /* signalling processing result does * not affect the actual ethernet packet. */ @@ -1553,7 +1607,7 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo, return rc; } -static int +static void brcmf_fws_rollback_toq(struct brcmf_fws_info *fws, struct sk_buff *skb) { /* @@ -1595,7 +1649,6 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws, struct sk_buff *skb) /* free the hanger slot */ brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &pktout, true); - brcmf_txfinalize(fws->drvr, skb, false); rc = -EINVAL; goto fail; } @@ -1629,11 +1682,31 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws, struct sk_buff *skb) fail: - if (rc) + if (rc) { + brcmf_txfinalize(fws->drvr, skb, false); fws->stats.rollback_failed++; - else + } else fws->stats.rollback_success++; - return rc; +} + +static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws) +{ + int lender_ac; + + if (time_after(fws->borrow_defer_timestamp, jiffies)) + return -ENAVAIL; + + for (lender_ac = 0; lender_ac <= BRCMF_FWS_FIFO_AC_VO; lender_ac++) { + if (fws->fifo_credit[lender_ac]) { + fws->credits_borrowed[lender_ac]++; + fws->fifo_credit[lender_ac]--; + if (fws->fifo_credit[lender_ac] == 0) + fws->fifo_credit_map &= ~(1 << lender_ac); + brcmf_dbg(TRACE, "borrow credit from: %d\n", lender_ac); + return 0; + } + } + return -ENAVAIL; } static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo, @@ -1669,8 +1742,17 @@ static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo, return 0; } + if (fifo != BRCMF_FWS_FIFO_AC_BE) + fws->borrow_defer_timestamp = jiffies + + BRCMF_FWS_BORROW_DEFER_PERIOD; + if (!(*credit)) { - brcmf_dbg(TRACE, "exit: credits depleted\n"); + /* Try to borrow a credit from other queue */ + if (fifo == BRCMF_FWS_FIFO_AC_BE && + brcmf_fws_borrow_credit(fws) == 0) + return 0; + + brcmf_dbg(TRACE, "exit: ac=%d, credits depleted\n", fifo); return -ENAVAIL; } (*credit)--; @@ -1712,17 +1794,17 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo, return rc; rollback: - rc = brcmf_fws_rollback_toq(fws, skb); + brcmf_fws_rollback_toq(fws, skb); return rc; } int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb) { struct brcmf_pub *drvr = ifp->drvr; + struct brcmf_fws_info *fws = drvr->fws; struct brcmf_skbuff_cb *skcb = brcmf_skbcb(skb); struct ethhdr *eh = (struct ethhdr *)(skb->data); ulong flags; - u8 ifidx = ifp->ifidx; int fifo = BRCMF_FWS_FIFO_BCMC; bool multicast = is_multicast_ether_addr(eh->h_dest); @@ -1734,9 +1816,9 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb) if (ntohs(eh->h_proto) == ETH_P_PAE) atomic_inc(&ifp->pend_8021x_cnt); - if (!brcmf_fws_fc_active(drvr->fws)) { + if (!brcmf_fws_fc_active(fws)) { /* If the protocol uses a data header, apply it */ - brcmf_proto_hdrpush(drvr, ifidx, 0, skb); + brcmf_proto_hdrpush(drvr, ifp->ifidx, 0, skb); /* Use bus module to send data frame */ return brcmf_bus_txdata(drvr->bus_if, skb); @@ -1744,9 +1826,9 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb) /* set control buffer information */ skcb->if_flags = 0; - skcb->mac = brcmf_fws_find_mac_desc(drvr->fws, ifidx, eh->h_dest); + skcb->mac = brcmf_fws_find_mac_desc(fws, ifp, eh->h_dest); skcb->state = BRCMF_FWS_SKBSTATE_NEW; - brcmf_skb_if_flags_set_field(skb, INDEX, ifidx); + brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx); if (!multicast) fifo = brcmf_fws_prio2fifo[skb->priority]; brcmf_skb_if_flags_set_field(skb, FIFO, fifo); @@ -1755,14 +1837,18 @@ 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(fws, skcb->mac, fifo) || + brcmu_pktq_mlen(&skcb->mac->psq, 3 << (fifo * 2)) || (!multicast && - brcmf_fws_consume_credit(drvr->fws, fifo, skb) < 0)) { + brcmf_fws_consume_credit(fws, fifo, skb) < 0)) { /* enqueue the packet in delayQ */ drvr->fws->fifo_delay_map |= 1 << fifo; - brcmf_fws_enq(drvr->fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb); + brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb); } else { - brcmf_fws_commit_skb(drvr->fws, fifo, skb); + if (brcmf_fws_commit_skb(fws, fifo, skb)) + if (!multicast) + brcmf_skb_pick_up_credit(fws, fifo, skb); } brcmf_fws_unlock(drvr, flags); return 0; @@ -1799,14 +1885,17 @@ void brcmf_fws_add_interface(struct brcmf_if *ifp) void brcmf_fws_del_interface(struct brcmf_if *ifp) { struct brcmf_fws_mac_descriptor *entry = ifp->fws_desc; + ulong flags; brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx); if (!entry) return; + brcmf_fws_lock(ifp->drvr, flags); ifp->fws_desc = NULL; brcmf_fws_clear_mac_descriptor(entry); brcmf_fws_cleanup(ifp->drvr->fws, ifp->ifidx); + brcmf_fws_unlock(ifp->drvr, flags); } static void brcmf_fws_dequeue_worker(struct work_struct *worker) @@ -1826,14 +1915,29 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker) fws->fifo_credit[fifo]); for (credit = 0; credit < fws->fifo_credit[fifo]; /* nop */) { skb = brcmf_fws_deq(fws, fifo); - if (!skb) + if (!skb || brcmf_fws_commit_skb(fws, fifo, skb)) break; - if (!brcmf_fws_commit_skb(fws, fifo, skb) && - brcmf_skbcb(skb)->if_flags & + if (brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) credit++; } - fws->fifo_credit[fifo] -= credit; + if ((fifo == BRCMF_FWS_FIFO_AC_BE) && + (credit == fws->fifo_credit[fifo])) { + fws->fifo_credit[fifo] -= credit; + while (brcmf_fws_borrow_credit(fws) == 0) { + skb = brcmf_fws_deq(fws, fifo); + if (!skb) { + brcmf_fws_return_credits(fws, fifo, 1); + break; + } + if (brcmf_fws_commit_skb(fws, fifo, skb)) { + brcmf_fws_return_credits(fws, fifo, 1); + break; + } + } + } else { + fws->fifo_credit[fifo] -= credit; + } } brcmf_fws_unlock(fws->drvr, flags); } @@ -1872,16 +1976,20 @@ int brcmf_fws_init(struct brcmf_pub *drvr) BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS | BRCMF_FWS_FLAGS_HOST_PROPTXSTATUS_ACTIVE; - rc = brcmf_fil_iovar_int_set(drvr->iflist[0], "tlv", tlv); + rc = brcmf_fweh_register(drvr, BRCMF_E_FIFO_CREDIT_MAP, + brcmf_fws_notify_credit_map); if (rc < 0) { - brcmf_err("failed to set bdcv2 tlv signaling\n"); + brcmf_err("register credit map handler failed\n"); goto fail; } - if (brcmf_fweh_register(drvr, BRCMF_E_FIFO_CREDIT_MAP, - brcmf_fws_notify_credit_map)) { - brcmf_err("register credit map handler failed\n"); - goto fail; + /* setting the iovar may fail if feature is unsupported + * so leave the rc as is so driver initialization can + * continue. + */ + if (brcmf_fil_iovar_int_set(drvr->iflist[0], "tlv", tlv)) { + brcmf_err("failed to set bdcv2 tlv signaling\n"); + goto fail_event; } brcmf_fws_hanger_init(&drvr->fws->hanger); @@ -1897,9 +2005,9 @@ int brcmf_fws_init(struct brcmf_pub *drvr) drvr->fw_signals ? "enabled" : "disabled", tlv); return 0; +fail_event: + brcmf_fweh_unregister(drvr, BRCMF_E_FIFO_CREDIT_MAP); fail: - /* disable flow control entirely */ - drvr->fw_signals = false; brcmf_fws_deinit(drvr); return rc; } @@ -1912,6 +2020,14 @@ void brcmf_fws_deinit(struct brcmf_pub *drvr) if (!fws) return; + /* disable firmware signalling entirely + * to avoid using the workqueue. + */ + drvr->fw_signals = false; + + if (drvr->fws->fws_wq) + destroy_workqueue(drvr->fws->fws_wq); + /* cleanup */ brcmf_fws_lock(drvr, flags); brcmf_fws_cleanup(fws, -1); |