From 4f679496567809ce1e95730c25274e1832537f4b Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 10 Dec 2007 14:58:37 -0500 Subject: [PATCH] libertas: clean up lbs_interrupt() Make it take struct lbs_private as argument; that's all it wants anyway, and all callers were starting off from that. Don't wake the netif queues, because those should be handled elsewhere. And sort out the locking, with a big nasty warning for those who don't have the driver_lock locked when they call it. Oh, and fix if_cs.c to lock the driver_lock before calling it. Signed-off-by: David Woodhouse Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/decl.h | 2 +- drivers/net/wireless/libertas/if_cs.c | 5 +++-- drivers/net/wireless/libertas/if_sdio.c | 4 ++-- drivers/net/wireless/libertas/if_usb.c | 4 ++-- drivers/net/wireless/libertas/main.c | 19 +++++++++---------- 5 files changed, 17 insertions(+), 17 deletions(-) diff --git a/drivers/net/wireless/libertas/decl.h b/drivers/net/wireless/libertas/decl.h index a086d0c6df..82727a87ea 100644 --- a/drivers/net/wireless/libertas/decl.h +++ b/drivers/net/wireless/libertas/decl.h @@ -39,7 +39,7 @@ void lbs_queue_cmd(struct lbs_private *priv, int lbs_allocate_cmd_buffer(struct lbs_private *priv); int lbs_execute_next_command(struct lbs_private *priv); int lbs_process_event(struct lbs_private *priv); -void lbs_interrupt(struct net_device *); +void lbs_interrupt(struct lbs_private *priv); int lbs_set_radio_control(struct lbs_private *priv); u32 lbs_fw_index_to_data_rate(u8 index); u8 lbs_data_rate_to_fw_index(u32 rate); diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 49a01780dd..2acbe5dcff 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -264,8 +264,9 @@ static irqreturn_t if_cs_interrupt(int irq, void *data) /* clear interrupt */ if_cs_write16(card, IF_CS_C_INT_CAUSE, int_cause & IF_CS_C_IC_MASK); } - - lbs_interrupt(card->priv->dev); + spin_lock(&card->priv->driver_lock); + lbs_interrupt(card->priv); + spin_unlock(&card->priv->driver_lock); return IRQ_HANDLED; } diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index 2423960936..1ed72b9b6b 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -154,7 +154,7 @@ static int if_sdio_handle_cmd(struct if_sdio_card *card, card->int_cause |= MRVDRV_CMD_UPLD_RDY; - lbs_interrupt(card->priv->dev); + lbs_interrupt(card->priv); ret = 0; @@ -236,7 +236,7 @@ static int if_sdio_handle_event(struct if_sdio_card *card, card->event = event; card->int_cause |= MRVDRV_CARDEVENT; - lbs_interrupt(card->priv->dev); + lbs_interrupt(card->priv); spin_unlock_irqrestore(&card->priv->driver_lock, flags); diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index f59fd73468..1c23166783 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -632,7 +632,7 @@ static inline void process_cmdrequest(int recvlength, u8 *recvbuff, priv->upld_len); kfree_skb(skb); - lbs_interrupt(priv->dev); + lbs_interrupt(priv); spin_unlock(&priv->driver_lock); lbs_deb_usbd(&cardp->udev->dev, @@ -705,7 +705,7 @@ static void if_usb_receive(struct urb *urb) cardp->usb_event_cause <<= 3; cardp->usb_int_cause |= MRVDRV_CARDEVENT; kfree_skb(skb); - lbs_interrupt(priv->dev); + lbs_interrupt(priv); spin_unlock(&priv->driver_lock); goto rx_exit; default: diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index f16c93ba6e..2797149649 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -1408,23 +1408,22 @@ out: * @param dev A pointer to net_device structure * @return n/a */ -void lbs_interrupt(struct net_device *dev) +void lbs_interrupt(struct lbs_private *priv) { - struct lbs_private *priv = dev->priv; - lbs_deb_enter(LBS_DEB_THREAD); - lbs_deb_thread("lbs_interrupt: intcounter=%d\n", - priv->intcounter); + lbs_deb_thread("lbs_interrupt: intcounter=%d\n", priv->intcounter); + + if (spin_trylock(&priv->driver_lock)) { + spin_unlock(&priv->driver_lock); + printk(KERN_CRIT "%s called without driver_lock held\n", __func__); + WARN_ON(1); + } priv->intcounter++; - if (priv->psstate == PS_STATE_SLEEP) { + if (priv->psstate == PS_STATE_SLEEP) priv->psstate = PS_STATE_AWAKE; - netif_wake_queue(dev); - if (priv->mesh_dev) - netif_wake_queue(priv->mesh_dev); - } wake_up_interruptible(&priv->waitq); -- 2.39.5