diff options
author | Francois Romieu <romieu@fr.zoreil.com> | 2005-11-07 01:50:46 +0100 |
---|---|---|
committer | Jeff Garzik <jgarzik@pobox.com> | 2005-11-07 09:37:05 +0100 |
commit | 874a6214bc1477004a0dd6f881b078d0d6b1eae9 (patch) | |
tree | bf01333dce3b5ee11d1d9187efd7317fffb18ac5 /drivers/net/b44.c | |
parent | [PATCH] b44: b44_start_xmit returns with a lock held when it fails allocating (diff) | |
download | linux-874a6214bc1477004a0dd6f881b078d0d6b1eae9.tar.xz linux-874a6214bc1477004a0dd6f881b078d0d6b1eae9.zip |
[PATCH] b44: miscellaneous cleanup
- remove unneeded forward declarations
- s/kmalloc + memset/kzalloc/
- whitespace readjustement can't hurt
- wrong comment: b44_init_rings _is_ called with a spinlock held in
b44_{open/set_ringparam/set_pauseparam/etc}.
Actually, it does not need to be able to sleep
- b44_remove_one() can not be issued with a NULL device in its
private member: remove the test.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/net/b44.c')
-rw-r--r-- | drivers/net/b44.c | 67 |
1 files changed, 28 insertions, 39 deletions
diff --git a/drivers/net/b44.c b/drivers/net/b44.c index b334cc310bc1..3b6428f004f6 100644 --- a/drivers/net/b44.c +++ b/drivers/net/b44.c @@ -102,10 +102,6 @@ MODULE_DEVICE_TABLE(pci, b44_pci_tbl); static void b44_halt(struct b44 *); static void b44_init_rings(struct b44 *); static void b44_init_hw(struct b44 *); -static int b44_poll(struct net_device *dev, int *budget); -#ifdef CONFIG_NET_POLL_CONTROLLER -static void b44_poll_controller(struct net_device *dev); -#endif static int dma_desc_align_mask; static int dma_desc_sync_size; @@ -653,7 +649,7 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked) /* Hardware bug work-around, the chip is unable to do PCI DMA to/from anything above 1GB :-( */ - if(mapping+RX_PKT_BUF_SZ > B44_DMA_MASK) { + if (mapping + RX_PKT_BUF_SZ > B44_DMA_MASK) { /* Sigh... */ pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE); dev_kfree_skb_any(skb); @@ -663,7 +659,7 @@ static int b44_alloc_rx_skb(struct b44 *bp, int src_idx, u32 dest_idx_unmasked) mapping = pci_map_single(bp->pdev, skb->data, RX_PKT_BUF_SZ, PCI_DMA_FROMDEVICE); - if(mapping+RX_PKT_BUF_SZ > B44_DMA_MASK) { + if (mapping + RX_PKT_BUF_SZ > B44_DMA_MASK) { pci_unmap_single(bp->pdev, mapping, RX_PKT_BUF_SZ,PCI_DMA_FROMDEVICE); dev_kfree_skb_any(skb); return -ENOMEM; @@ -964,7 +960,7 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) } mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE); - if(mapping+len > B44_DMA_MASK) { + if (mapping + len > B44_DMA_MASK) { /* Chip can't handle DMA to/from >1GB, use bounce buffer */ pci_unmap_single(bp->pdev, mapping, len, PCI_DMA_TODEVICE); @@ -975,7 +971,7 @@ static int b44_start_xmit(struct sk_buff *skb, struct net_device *dev) mapping = pci_map_single(bp->pdev, bounce_skb->data, len, PCI_DMA_TODEVICE); - if(mapping+len > B44_DMA_MASK) { + if (mapping + len > B44_DMA_MASK) { pci_unmap_single(bp->pdev, mapping, len, PCI_DMA_TODEVICE); dev_kfree_skb_any(bounce_skb); @@ -1102,8 +1098,7 @@ static void b44_free_rings(struct b44 *bp) * * The chip has been shut down and the driver detached from * the networking, so no interrupts or new tx packets will - * end up in the driver. bp->lock is not held and we are not - * in an interrupt context and thus may sleep. + * end up in the driver. */ static void b44_init_rings(struct b44 *bp) { @@ -1175,16 +1170,14 @@ static int b44_alloc_consistent(struct b44 *bp) int size; size = B44_RX_RING_SIZE * sizeof(struct ring_info); - bp->rx_buffers = kmalloc(size, GFP_KERNEL); + bp->rx_buffers = kzalloc(size, GFP_KERNEL); if (!bp->rx_buffers) goto out_err; - memset(bp->rx_buffers, 0, size); size = B44_TX_RING_SIZE * sizeof(struct ring_info); - bp->tx_buffers = kmalloc(size, GFP_KERNEL); + bp->tx_buffers = kzalloc(size, GFP_KERNEL); if (!bp->tx_buffers) goto out_err; - memset(bp->tx_buffers, 0, size); size = DMA_TABLE_BYTES; bp->rx_ring = pci_alloc_consistent(bp->pdev, size, &bp->rx_ring_dma); @@ -1195,10 +1188,10 @@ static int b44_alloc_consistent(struct b44 *bp) struct dma_desc *rx_ring; dma_addr_t rx_ring_dma; - if (!(rx_ring = (struct dma_desc *)kmalloc(size, GFP_KERNEL))) + rx_ring = kzalloc(size, GFP_KERNEL); + if (!rx_ring) goto out_err; - memset(rx_ring, 0, size); rx_ring_dma = dma_map_single(&bp->pdev->dev, rx_ring, DMA_TABLE_BYTES, DMA_BIDIRECTIONAL); @@ -1221,10 +1214,10 @@ static int b44_alloc_consistent(struct b44 *bp) struct dma_desc *tx_ring; dma_addr_t tx_ring_dma; - if (!(tx_ring = (struct dma_desc *)kmalloc(size, GFP_KERNEL))) + tx_ring = kzalloc(size, GFP_KERNEL); + if (!tx_ring) goto out_err; - memset(tx_ring, 0, size); tx_ring_dma = dma_map_single(&bp->pdev->dev, tx_ring, DMA_TABLE_BYTES, DMA_TO_DEVICE); @@ -1530,8 +1523,6 @@ static void __b44_set_rx_mode(struct net_device *dev) { struct b44 *bp = netdev_priv(dev); u32 val; - int i=0; - unsigned char zero[6] = {0,0,0,0,0,0}; val = br32(bp, B44_RXCONFIG); val &= ~(RXCONFIG_PROMISC | RXCONFIG_ALLMULTI); @@ -1539,14 +1530,17 @@ static void __b44_set_rx_mode(struct net_device *dev) val |= RXCONFIG_PROMISC; bw32(bp, B44_RXCONFIG, val); } else { + unsigned char zero[6] = {0, 0, 0, 0, 0, 0}; + int i = 0; + __b44_set_mac_addr(bp); if (dev->flags & IFF_ALLMULTI) val |= RXCONFIG_ALLMULTI; else - i=__b44_load_mcast(bp, dev); + i = __b44_load_mcast(bp, dev); - for(;i<64;i++) { + for (; i < 64; i++) { __b44_cam_write(bp, zero, i); } bw32(bp, B44_RXCONFIG, val); @@ -1898,9 +1892,9 @@ static int __devinit b44_init_one(struct pci_dev *pdev, err = pci_set_consistent_dma_mask(pdev, (u64) B44_DMA_MASK); if (err) { - printk(KERN_ERR PFX "No usable DMA configuration, " - "aborting.\n"); - goto err_out_free_res; + printk(KERN_ERR PFX "No usable DMA configuration, " + "aborting.\n"); + goto err_out_free_res; } b44reg_base = pci_resource_start(pdev, 0); @@ -1922,10 +1916,8 @@ static int __devinit b44_init_one(struct pci_dev *pdev, bp = netdev_priv(dev); bp->pdev = pdev; bp->dev = dev; - if (b44_debug >= 0) - bp->msg_enable = (1 << b44_debug) - 1; - else - bp->msg_enable = B44_DEF_MSG_ENABLE; + + bp->msg_enable = netif_msg_init(b44_debug, B44_DEF_MSG_ENABLE); spin_lock_init(&bp->lock); @@ -2015,17 +2007,14 @@ err_out_disable_pdev: static void __devexit b44_remove_one(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); + struct b44 *bp = netdev_priv(dev); - if (dev) { - struct b44 *bp = netdev_priv(dev); - - unregister_netdev(dev); - iounmap(bp->regs); - free_netdev(dev); - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - } + unregister_netdev(dev); + iounmap(bp->regs); + free_netdev(dev); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); } static int b44_suspend(struct pci_dev *pdev, pm_message_t state) |