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Date: Thu, 15 Mar 2012 14:57:24 +0100
From: Francois Romieu <romieu@...zoreil.com>
To: netdev@...r.kernel.org
Cc: "David Miller" <davem@...emloft.net>,
Steve Glendinning <steve.glendinning@...c.com>
Subject: [PATCH net-next 27/34] smsc9420: stop using net_device.{base_addr, irq}.
The device private data pointer can not be NULL in smsc9420_open().
Signed-off-by: Francois Romieu <romieu@...zoreil.com>
Cc: Steve Glendinning <steve.glendinning@...c.com>
---
drivers/net/ethernet/smsc/smsc9420.c | 36 ++++++++++++++++-----------------
1 files changed, 17 insertions(+), 19 deletions(-)
diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c
index 3838647..fa1489e 100644
--- a/drivers/net/ethernet/smsc/smsc9420.c
+++ b/drivers/net/ethernet/smsc/smsc9420.c
@@ -720,9 +720,12 @@ static irqreturn_t smsc9420_isr(int irq, void *dev_id)
#ifdef CONFIG_NET_POLL_CONTROLLER
static void smsc9420_poll_controller(struct net_device *dev)
{
- disable_irq(dev->irq);
+ struct smsc9420_pdata *pd = netdev_priv(dev);
+ const int irq = pd->pdev->irq;
+
+ disable_irq(irq);
smsc9420_isr(0, dev);
- enable_irq(dev->irq);
+ enable_irq(irq);
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
@@ -759,7 +762,7 @@ static int smsc9420_stop(struct net_device *dev)
smsc9420_stop_rx(pd);
smsc9420_free_rx_ring(pd);
- free_irq(dev->irq, pd);
+ free_irq(pd->pdev->irq, pd);
smsc9420_dmac_soft_reset(pd);
@@ -1331,15 +1334,12 @@ out:
static int smsc9420_open(struct net_device *dev)
{
- struct smsc9420_pdata *pd;
+ struct smsc9420_pdata *pd = netdev_priv(dev);
u32 bus_mode, mac_cr, dmac_control, int_cfg, dma_intr_ena, int_ctl;
+ const int irq = pd->pdev->irq;
unsigned long flags;
int result = 0, timeout;
- BUG_ON(!dev);
- pd = netdev_priv(dev);
- BUG_ON(!pd);
-
if (!is_valid_ether_addr(dev->dev_addr)) {
smsc_warn(IFUP, "dev_addr is not a valid MAC address");
result = -EADDRNOTAVAIL;
@@ -1358,10 +1358,10 @@ static int smsc9420_open(struct net_device *dev)
smsc9420_reg_write(pd, INT_STAT, 0xFFFFFFFF);
smsc9420_pci_flush_write(pd);
- if (request_irq(dev->irq, smsc9420_isr, IRQF_SHARED | IRQF_DISABLED,
- DRV_NAME, pd)) {
- smsc_warn(IFUP, "Unable to use IRQ = %d", dev->irq);
- result = -ENODEV;
+ result = request_irq(irq, smsc9420_isr, IRQF_SHARED | IRQF_DISABLED,
+ DRV_NAME, pd);
+ if (result < 0) {
+ smsc_warn(IFUP, "Unable to use IRQ = %d", irq);
goto out_0;
}
@@ -1395,7 +1395,7 @@ static int smsc9420_open(struct net_device *dev)
smsc9420_pci_flush_write(pd);
/* test the IRQ connection to the ISR */
- smsc_dbg(IFUP, "Testing ISR using IRQ %d", dev->irq);
+ smsc_dbg(IFUP, "Testing ISR using IRQ %d", irq);
pd->software_irq_signal = false;
spin_lock_irqsave(&pd->int_lock, flags);
@@ -1430,7 +1430,7 @@ static int smsc9420_open(struct net_device *dev)
goto out_free_irq_1;
}
- smsc_dbg(IFUP, "ISR passed test using IRQ %d", dev->irq);
+ smsc_dbg(IFUP, "ISR passed test using IRQ %d", irq);
result = smsc9420_alloc_tx_ring(pd);
if (result) {
@@ -1490,7 +1490,7 @@ out_free_rx_ring_3:
out_free_tx_ring_2:
smsc9420_free_tx_ring(pd);
out_free_irq_1:
- free_irq(dev->irq, pd);
+ free_irq(irq, pd);
out_0:
return result;
}
@@ -1519,7 +1519,7 @@ static int smsc9420_suspend(struct pci_dev *pdev, pm_message_t state)
smsc9420_stop_rx(pd);
smsc9420_free_rx_ring(pd);
- free_irq(dev->irq, pd);
+ free_irq(pd->pdev->irq, pd);
netif_device_detach(dev);
}
@@ -1552,6 +1552,7 @@ static int smsc9420_resume(struct pci_dev *pdev)
smsc_warn(IFUP, "pci_enable_wake failed: %d", err);
if (netif_running(dev)) {
+ /* FIXME: gross. It looks like ancient PM relic.*/
err = smsc9420_open(dev);
netif_device_attach(dev);
}
@@ -1625,8 +1626,6 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
/* registers are double mapped with 0 offset for LE and 0x200 for BE */
virt_addr += LAN9420_CPSR_ENDIAN_OFFSET;
- dev->base_addr = (ulong)virt_addr;
-
pd = netdev_priv(dev);
/* pci descriptors are created in the PCI consistent area */
@@ -1669,7 +1668,6 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
dev->netdev_ops = &smsc9420_netdev_ops;
dev->ethtool_ops = &smsc9420_ethtool_ops;
- dev->irq = pdev->irq;
netif_napi_add(dev, &pd->napi, smsc9420_rx_poll, NAPI_WEIGHT);
--
1.7.7.6
--
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