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WSL2-Linux-Kernel
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[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>
This commit is contained in:
Francois Romieu 2005-11-07 01:50:46 +01:00 коммит произвёл Jeff Garzik
Родитель c719369350
Коммит 874a6214bc
1 изменённых файлов: 28 добавлений и 39 удалений
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67
drivers/net/b44.c
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@ -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)