From 4f6e01f3d6ff9ca56692a29df2f6c2a97daf0a95 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 20 Aug 2019 16:46:42 +0200 Subject: [PATCH] s390/ctcm: don't use intparm for channel IO ctcm passes an intparm when calling ccw_device_*(), even though ctcm_irq_handler() later makes no use of this. To reduce the confusion, consistently pass 0 as intparm instead. Signed-off-by: Julian Wiedmann Reviewed-by: Sebastian Ott Signed-off-by: David S. Miller --- drivers/s390/net/ctcm_fsms.c | 42 ++++++++++++++---------------------- drivers/s390/net/ctcm_main.c | 6 ++---- drivers/s390/net/ctcm_mpc.c | 6 ++---- 3 files changed, 20 insertions(+), 34 deletions(-) diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c index 4a8a5373cb35..3ce99e4db44d 100644 --- a/drivers/s390/net/ctcm_fsms.c +++ b/drivers/s390/net/ctcm_fsms.c @@ -307,8 +307,7 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg) ch->ccw[1].count = ch->trans_skb->len; fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); ch->prof.send_stamp = jiffies; - rc = ccw_device_start(ch->cdev, &ch->ccw[0], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); ch->prof.doios_multi++; if (rc != 0) { priv->stats.tx_dropped += i; @@ -417,8 +416,7 @@ static void chx_rx(fsm_instance *fi, int event, void *arg) if (ctcm_checkalloc_buffer(ch)) return; ch->ccw[1].count = ch->max_bufsize; - rc = ccw_device_start(ch->cdev, &ch->ccw[0], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); if (rc != 0) ctcm_ccw_check_rc(ch, rc, "normal RX"); } @@ -478,8 +476,7 @@ static void chx_firstio(fsm_instance *fi, int event, void *arg) fsm_newstate(fi, (CHANNEL_DIRECTION(ch->flags) == CTCM_READ) ? CTC_STATE_RXINIT : CTC_STATE_TXINIT); - rc = ccw_device_start(ch->cdev, &ch->ccw[0], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); if (rc != 0) { fsm_deltimer(&ch->timer); fsm_newstate(fi, CTC_STATE_SETUPWAIT); @@ -527,8 +524,7 @@ static void chx_rxidle(fsm_instance *fi, int event, void *arg) return; ch->ccw[1].count = ch->max_bufsize; fsm_newstate(fi, CTC_STATE_RXIDLE); - rc = ccw_device_start(ch->cdev, &ch->ccw[0], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); if (rc != 0) { fsm_newstate(fi, CTC_STATE_RXINIT); ctcm_ccw_check_rc(ch, rc, "initial RX"); @@ -571,8 +567,7 @@ static void ctcm_chx_setmode(fsm_instance *fi, int event, void *arg) /* Such conditional locking is undeterministic in * static view. => ignore sparse warnings here. */ - rc = ccw_device_start(ch->cdev, &ch->ccw[6], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[6], 0, 0xff, 0); if (event == CTC_EVENT_TIMER) /* see above comments */ spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (rc != 0) { @@ -637,7 +632,7 @@ static void ctcm_chx_start(fsm_instance *fi, int event, void *arg) fsm_newstate(fi, CTC_STATE_STARTWAIT); fsm_addtimer(&ch->timer, 1000, CTC_EVENT_TIMER, ch); spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); - rc = ccw_device_halt(ch->cdev, (unsigned long)ch); + rc = ccw_device_halt(ch->cdev, 0); spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (rc != 0) { if (rc != -EBUSY) @@ -672,7 +667,7 @@ static void ctcm_chx_haltio(fsm_instance *fi, int event, void *arg) * static view. => ignore sparse warnings here. */ oldstate = fsm_getstate(fi); fsm_newstate(fi, CTC_STATE_TERM); - rc = ccw_device_halt(ch->cdev, (unsigned long)ch); + rc = ccw_device_halt(ch->cdev, 0); if (event == CTC_EVENT_STOP) spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); @@ -799,7 +794,7 @@ static void ctcm_chx_setuperr(fsm_instance *fi, int event, void *arg) fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); if (!IS_MPC(ch) && (CHANNEL_DIRECTION(ch->flags) == CTCM_READ)) { - int rc = ccw_device_halt(ch->cdev, (unsigned long)ch); + int rc = ccw_device_halt(ch->cdev, 0); if (rc != 0) ctcm_ccw_check_rc(ch, rc, "HaltIO in chx_setuperr"); @@ -851,7 +846,7 @@ static void ctcm_chx_restart(fsm_instance *fi, int event, void *arg) /* Such conditional locking is a known problem for * sparse because its undeterministic in static view. * Warnings should be ignored here. */ - rc = ccw_device_halt(ch->cdev, (unsigned long)ch); + rc = ccw_device_halt(ch->cdev, 0); if (event == CTC_EVENT_TIMER) spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (rc != 0) { @@ -947,8 +942,8 @@ static void ctcm_chx_rxdisc(fsm_instance *fi, int event, void *arg) ch2 = priv->channel[CTCM_WRITE]; fsm_newstate(ch2->fsm, CTC_STATE_DTERM); - ccw_device_halt(ch->cdev, (unsigned long)ch); - ccw_device_halt(ch2->cdev, (unsigned long)ch2); + ccw_device_halt(ch->cdev, 0); + ccw_device_halt(ch2->cdev, 0); } /** @@ -1041,8 +1036,7 @@ static void ctcm_chx_txretry(fsm_instance *fi, int event, void *arg) ctcmpc_dumpit((char *)&ch->ccw[3], sizeof(struct ccw1) * 3); - rc = ccw_device_start(ch->cdev, &ch->ccw[3], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[3], 0, 0xff, 0); if (event == CTC_EVENT_TIMER) spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); @@ -1361,8 +1355,7 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) ch->prof.send_stamp = jiffies; if (do_debug_ccw) ctcmpc_dumpit((char *)&ch->ccw[0], sizeof(struct ccw1) * 3); - rc = ccw_device_start(ch->cdev, &ch->ccw[0], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); ch->prof.doios_multi++; if (rc != 0) { priv->stats.tx_dropped += i; @@ -1462,8 +1455,7 @@ again: if (dolock) spin_lock_irqsave( get_ccwdev_lock(ch->cdev), saveflags); - rc = ccw_device_start(ch->cdev, &ch->ccw[0], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); if (dolock) /* see remark about conditional locking */ spin_unlock_irqrestore( get_ccwdev_lock(ch->cdev), saveflags); @@ -1569,8 +1561,7 @@ void ctcmpc_chx_rxidle(fsm_instance *fi, int event, void *arg) if (event == CTC_EVENT_START) /* see remark about conditional locking */ spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); - rc = ccw_device_start(ch->cdev, &ch->ccw[0], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); if (event == CTC_EVENT_START) spin_unlock_irqrestore( get_ccwdev_lock(ch->cdev), saveflags); @@ -1825,8 +1816,7 @@ static void ctcmpc_chx_send_sweep(fsm_instance *fsm, int event, void *arg) spin_lock_irqsave(get_ccwdev_lock(wch->cdev), saveflags); wch->prof.send_stamp = jiffies; - rc = ccw_device_start(wch->cdev, &wch->ccw[3], - (unsigned long) wch, 0xff, 0); + rc = ccw_device_start(wch->cdev, &wch->ccw[3], 0, 0xff, 0); spin_unlock_irqrestore(get_ccwdev_lock(wch->cdev), saveflags); if ((grp->sweep_req_pend_num == 0) && diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index f63c5c871d3d..2117870ed855 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -569,8 +569,7 @@ static int ctcm_transmit_skb(struct channel *ch, struct sk_buff *skb) fsm_addtimer(&ch->timer, CTCM_TIME_5_SEC, CTC_EVENT_TIMER, ch); spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); ch->prof.send_stamp = jiffies; - rc = ccw_device_start(ch->cdev, &ch->ccw[ccw_idx], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[ccw_idx], 0, 0xff, 0); spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (ccw_idx == 3) ch->prof.doios_single++; @@ -833,8 +832,7 @@ static int ctcmpc_transmit_skb(struct channel *ch, struct sk_buff *skb) spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); ch->prof.send_stamp = jiffies; - rc = ccw_device_start(ch->cdev, &ch->ccw[ccw_idx], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[ccw_idx], 0, 0xff, 0); spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (ccw_idx == 3) ch->prof.doios_single++; diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c index 1534420a0243..ab316baa8284 100644 --- a/drivers/s390/net/ctcm_mpc.c +++ b/drivers/s390/net/ctcm_mpc.c @@ -1523,8 +1523,7 @@ void mpc_action_send_discontact(unsigned long thischan) unsigned long saveflags = 0; spin_lock_irqsave(get_ccwdev_lock(ch->cdev), saveflags); - rc = ccw_device_start(ch->cdev, &ch->ccw[15], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[15], 0, 0xff, 0); spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags); if (rc != 0) { @@ -1797,8 +1796,7 @@ static void mpc_action_side_xid(fsm_instance *fsm, void *arg, int side) } fsm_addtimer(&ch->timer, 5000 , CTC_EVENT_TIMER, ch); - rc = ccw_device_start(ch->cdev, &ch->ccw[8], - (unsigned long)ch, 0xff, 0); + rc = ccw_device_start(ch->cdev, &ch->ccw[8], 0, 0xff, 0); if (gotlock) /* see remark above about conditional locking */ spin_unlock_irqrestore(get_ccwdev_lock(ch->cdev), saveflags);