staging: brcm80211: remove fullmac module_param brcmf_deferred_tx

Remove brcmf_deferred_tx as it should be always 1

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
index 680b232..dade3ec 100644 (file)
--- a/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
@@ -721,10 +721,6 @@ static int qcount[NUMPRIO];
 static int tx_packets[NUMPRIO];
 #endif                         /* BCMDBG */
 
-/* Deferred transmit */
-uint brcmf_deferred_tx = 1;
-module_param(brcmf_deferred_tx, uint, 0);
-
 /* Watchdog thread priority, -1 to use kernel timer */
 int brcmf_watchdog_prio = 97;
 module_param(brcmf_watchdog_prio, int, 0);
@@ -2845,63 +2841,33 @@ int brcmf_sdbrcm_bus_txdata(struct brcmf_bus *bus, struct sk_buff *pkt)
 
        /* Check for existing queue, current flow-control,
                         pending event, or pending clock */
-       if (brcmf_deferred_tx || bus->fcstate || pktq_len(&bus->txq)
-           || bus->dpc_sched || (!data_ok(bus))
-           || (bus->flowcontrol & NBITVAL(prec))
-           || (bus->clkstate != CLK_AVAIL)) {
-               brcmf_dbg(TRACE, "deferring pktq len %d\n",
-                         pktq_len(&bus->txq));
-               bus->fcqueued++;
-
-               /* Priority based enq */
-               spin_lock_bh(&bus->txqlock);
-               if (brcmf_c_prec_enq(bus->drvr, &bus->txq, pkt, prec) ==
-                   false) {
-                       skb_pull(pkt, SDPCM_HDRLEN);
-                       brcmf_txcomplete(bus->drvr, pkt, false);
-                       brcmu_pkt_buf_free_skb(pkt);
-                       brcmf_dbg(ERROR, "out of bus->txq !!!\n");
-                       ret = -ENOSR;
-               } else {
-                       ret = 0;
-               }
-               spin_unlock_bh(&bus->txqlock);
+       brcmf_dbg(TRACE, "deferring pktq len %d\n", pktq_len(&bus->txq));
+       bus->fcqueued++;
+
+       /* Priority based enq */
+       spin_lock_bh(&bus->txqlock);
+       if (brcmf_c_prec_enq(bus->drvr, &bus->txq, pkt, prec) == false) {
+               skb_pull(pkt, SDPCM_HDRLEN);
+               brcmf_txcomplete(bus->drvr, pkt, false);
+               brcmu_pkt_buf_free_skb(pkt);
+               brcmf_dbg(ERROR, "out of bus->txq !!!\n");
+               ret = -ENOSR;
+       } else {
+               ret = 0;
+       }
+       spin_unlock_bh(&bus->txqlock);
 
-               if (pktq_len(&bus->txq) >= TXHI)
-                       brcmf_txflowcontrol(bus->drvr, 0, ON);
+       if (pktq_len(&bus->txq) >= TXHI)
+               brcmf_txflowcontrol(bus->drvr, 0, ON);
 
 #ifdef BCMDBG
-               if (pktq_plen(&bus->txq, prec) > qcount[prec])
-                       qcount[prec] = pktq_plen(&bus->txq, prec);
+       if (pktq_plen(&bus->txq, prec) > qcount[prec])
+               qcount[prec] = pktq_plen(&bus->txq, prec);
 #endif
-               /* Schedule DPC if needed to send queued packet(s) */
-               if (brcmf_deferred_tx && !bus->dpc_sched) {
-                       bus->dpc_sched = true;
-                       brcmf_sdbrcm_sched_dpc(bus);
-               }
-       } else {
-               /* Lock: we're about to use shared data/code (and SDIO) */
-               brcmf_sdbrcm_sdlock(bus);
-
-               /* Otherwise, send it now */
-               bus_wake(bus);
-               /* Make sure back plane ht clk is on, no pending allowed */
-               brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, true);
-
-               brcmf_dbg(TRACE, "calling txpkt\n");
-               ret = brcmf_sdbrcm_txpkt(bus, pkt, SDPCM_DATA_CHANNEL, true);
-               if (ret)
-                       bus->drvr->tx_errors++;
-               else
-                       bus->drvr->dstats.tx_bytes += datalen;
-
-               if (bus->idletime == BRCMF_IDLE_IMMEDIATE &&
-                   !bus->dpc_sched) {
-                       bus->activity = false;
-                       brcmf_sdbrcm_clkctl(bus, CLK_NONE, true);
-               }
-
-               brcmf_sdbrcm_sdunlock(bus);
+       /* Schedule DPC if needed to send queued packet(s) */
+       if (!bus->dpc_sched) {
+               bus->dpc_sched = true;
+               brcmf_sdbrcm_sched_dpc(bus);
        }
 
        return ret;
@@ -5013,8 +4979,7 @@ int brcmf_bus_register(void)
                        break;
 
                /* If both watchdog and DPC are threads, TX must be deferred */
-               if ((brcmf_watchdog_prio >= 0) && (brcmf_dpc_prio >= 0)
-                   && brcmf_deferred_tx)
+               if (brcmf_watchdog_prio >= 0 && brcmf_dpc_prio >= 0)
                        break;
 
                brcmf_dbg(ERROR, "Invalid module parameters.\n");