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IOC3: Switch to pci refcounting safe APIs 

Convert the IOC3 driver to use ref counting pci interfaces so that we can
obsolete the (usually unsafe) pci_find_{slot/device} interfaces and avoid
future authors writing hotplug-unsafe device drivers.

Signed-off-by: Alan Cox <alan@redhat.com>

Build fixes:
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2007-07-10 17:05:16 +01:00 committed by Jeff Garzik
parent 44e4925e46
commit f49343a548
1 changed files with 24 additions and 17 deletions
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41
drivers/net/ioc3-eth.c
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@ -352,13 +352,12 @@ static u64 nic_find(struct ioc3 *ioc3, int *last)
static int nic_init(struct ioc3 *ioc3)
{
const char *type;
const char *unknown = "unknown";
const char *type = unknown;
u8 crc;
u8 serial[6];
int save = 0, i;
type = "unknown";
while (1) {
u64 reg;
reg = nic_find(ioc3, &save);
@ -392,7 +391,7 @@ static int nic_init(struct ioc3 *ioc3)
}
printk("Found %s NIC", type);
if (type != "unknown") {
if (type != unknown) {
printk (" registration number %02x:%02x:%02x:%02x:%02x:%02x,"
" CRC %02x", serial[0], serial[1], serial[2],
serial[3], serial[4], serial[5], crc);
@ -1103,20 +1102,28 @@ static int ioc3_close(struct net_device *dev)
* MiniDINs; all other subdevices are left swinging in the wind, leave
* them disabled.
*/
static inline int ioc3_is_menet(struct pci_dev *pdev)
{
struct pci_dev *dev;
return pdev->bus->parent == NULL
&& (dev = pci_find_slot(pdev->bus->number, PCI_DEVFN(0, 0)))
&& dev->vendor == PCI_VENDOR_ID_SGI
&& dev->device == PCI_DEVICE_ID_SGI_IOC3
&& (dev = pci_find_slot(pdev->bus->number, PCI_DEVFN(1, 0)))
&& dev->vendor == PCI_VENDOR_ID_SGI
&& dev->device == PCI_DEVICE_ID_SGI_IOC3
&& (dev = pci_find_slot(pdev->bus->number, PCI_DEVFN(2, 0)))
&& dev->vendor == PCI_VENDOR_ID_SGI
&& dev->device == PCI_DEVICE_ID_SGI_IOC3;
static int ioc3_adjacent_is_ioc3(struct pci_dev *pdev, int slot)
{
struct pci_dev *dev = pci_get_slot(pdev->bus, PCI_DEVFN(slot, 0));
int ret = 0;
if (dev) {
if (dev->vendor == PCI_VENDOR_ID_SGI &&
dev->device == PCI_DEVICE_ID_SGI_IOC3)
ret = 1;
pci_dev_put(dev);
}
return ret;
}
static int ioc3_is_menet(struct pci_dev *pdev)
{
return pdev->bus->parent == NULL &&
ioc3_adjacent_is_ioc3(pdev, 0) &&
ioc3_adjacent_is_ioc3(pdev, 1) &&
ioc3_adjacent_is_ioc3(pdev, 2);
}
#ifdef CONFIG_SERIAL_8250