diff options
Diffstat (limited to 'drivers/net/wireless/b43/dma.c')
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 30 |
1 files changed, 5 insertions, 25 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 25ced8bdec8..a467ee260a1 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -856,7 +856,6 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev, } else B43_WARN_ON(1); } - spin_lock_init(&ring->lock); #ifdef CONFIG_B43_DEBUG ring->last_injected_overflow = jiffies; #endif @@ -1315,7 +1314,6 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) struct b43_dmaring *ring; struct ieee80211_hdr *hdr; int err = 0; - unsigned long flags; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); hdr = (struct ieee80211_hdr *)skb->data; @@ -1331,8 +1329,6 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) dev, skb_get_queue_mapping(skb)); } - spin_lock_irqsave(&ring->lock, flags); - B43_WARN_ON(!ring->tx); if (unlikely(ring->stopped)) { @@ -1343,7 +1339,7 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) if (b43_debug(dev, B43_DBG_DMAVERBOSE)) b43err(dev->wl, "Packet after queue stopped\n"); err = -ENOSPC; - goto out_unlock; + goto out; } if (unlikely(WARN_ON(free_slots(ring) < TX_SLOTS_PER_FRAME))) { @@ -1351,7 +1347,7 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) * full, but queues not stopped. */ b43err(dev->wl, "DMA queue overflow\n"); err = -ENOSPC; - goto out_unlock; + goto out; } /* Assign the queue number to the ring (if not already done before) @@ -1365,11 +1361,11 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) * anymore and must not transmit it unencrypted. */ dev_kfree_skb_any(skb); err = 0; - goto out_unlock; + goto out; } if (unlikely(err)) { b43err(dev->wl, "DMA tx mapping failure\n"); - goto out_unlock; + goto out; } ring->nr_tx_packets++; if ((free_slots(ring) < TX_SLOTS_PER_FRAME) || @@ -1381,8 +1377,7 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) b43dbg(dev->wl, "Stopped TX ring %d\n", ring->index); } } -out_unlock: - spin_unlock_irqrestore(&ring->lock, flags); +out: return err; } @@ -1401,8 +1396,6 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, if (unlikely(!ring)) return; - spin_lock_irq(&ring->lock); - B43_WARN_ON(!ring->tx); ops = ring->ops; while (1) { @@ -1461,8 +1454,6 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, b43dbg(dev->wl, "Woke up TX ring %d\n", ring->index); } } - - spin_unlock_irq(&ring->lock); } void b43_dma_get_tx_stats(struct b43_wldev *dev, @@ -1470,17 +1461,14 @@ void b43_dma_get_tx_stats(struct b43_wldev *dev, { const int nr_queues = dev->wl->hw->queues; struct b43_dmaring *ring; - unsigned long flags; int i; for (i = 0; i < nr_queues; i++) { ring = select_ring_by_priority(dev, i); - spin_lock_irqsave(&ring->lock, flags); stats[i].len = ring->used_slots / TX_SLOTS_PER_FRAME; stats[i].limit = ring->nr_slots / TX_SLOTS_PER_FRAME; stats[i].count = ring->nr_tx_packets; - spin_unlock_irqrestore(&ring->lock, flags); } } @@ -1591,22 +1579,14 @@ void b43_dma_rx(struct b43_dmaring *ring) static void b43_dma_tx_suspend_ring(struct b43_dmaring *ring) { - unsigned long flags; - - spin_lock_irqsave(&ring->lock, flags); B43_WARN_ON(!ring->tx); ring->ops->tx_suspend(ring); - spin_unlock_irqrestore(&ring->lock, flags); } static void b43_dma_tx_resume_ring(struct b43_dmaring *ring) { - unsigned long flags; - - spin_lock_irqsave(&ring->lock, flags); B43_WARN_ON(!ring->tx); ring->ops->tx_resume(ring); - spin_unlock_irqrestore(&ring->lock, flags); } void b43_dma_tx_suspend(struct b43_wldev *dev) |