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path: root/drivers/pci/search.c
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Diffstat (limited to 'drivers/pci/search.c')
-rw-r--r--drivers/pci/search.c63
1 files changed, 21 insertions, 42 deletions
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 993d4a0a2469..bf969ba58e59 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -41,7 +41,7 @@ pci_find_upstream_pcie_bridge(struct pci_dev *pdev)
continue;
}
/* PCI device should connect to a PCIe bridge */
- if (pdev->pcie_type != PCI_EXP_TYPE_PCI_BRIDGE) {
+ if (pci_pcie_type(pdev) != PCI_EXP_TYPE_PCI_BRIDGE) {
/* Busted hardware? */
WARN_ON_ONCE(1);
return NULL;
@@ -130,16 +130,14 @@ pci_find_next_bus(const struct pci_bus *from)
* decrement the reference count by calling pci_dev_put().
* If no device is found, %NULL is returned.
*/
-struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
+struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn)
{
- struct list_head *tmp;
struct pci_dev *dev;
WARN_ON(in_interrupt());
down_read(&pci_bus_sem);
- list_for_each(tmp, &bus->devices) {
- dev = pci_dev_b(tmp);
+ list_for_each_entry(dev, &bus->devices, bus_list) {
if (dev->devfn == devfn)
goto out;
}
@@ -245,30 +243,14 @@ struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
unsigned int ss_vendor, unsigned int ss_device,
struct pci_dev *from)
{
- struct pci_dev *pdev;
- struct pci_device_id *id;
-
- /*
- * pci_find_subsys() can be called on the ide_setup() path,
- * super-early in boot. But the down_read() will enable local
- * interrupts, which can cause some machines to crash. So here we
- * detect and flag that situation and bail out early.
- */
- if (unlikely(no_pci_devices()))
- return NULL;
-
- id = kzalloc(sizeof(*id), GFP_KERNEL);
- if (!id)
- return NULL;
- id->vendor = vendor;
- id->device = device;
- id->subvendor = ss_vendor;
- id->subdevice = ss_device;
-
- pdev = pci_get_dev_by_id(id, from);
- kfree(id);
-
- return pdev;
+ struct pci_device_id id = {
+ .vendor = vendor,
+ .device = device,
+ .subvendor = ss_vendor,
+ .subdevice = ss_device,
+ };
+
+ return pci_get_dev_by_id(&id, from);
}
/**
@@ -307,19 +289,16 @@ pci_get_device(unsigned int vendor, unsigned int device, struct pci_dev *from)
*/
struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
{
- struct pci_dev *dev;
- struct pci_device_id *id;
-
- id = kzalloc(sizeof(*id), GFP_KERNEL);
- if (!id)
- return NULL;
- id->vendor = id->device = id->subvendor = id->subdevice = PCI_ANY_ID;
- id->class_mask = PCI_ANY_ID;
- id->class = class;
-
- dev = pci_get_dev_by_id(id, from);
- kfree(id);
- return dev;
+ struct pci_device_id id = {
+ .vendor = PCI_ANY_ID,
+ .device = PCI_ANY_ID,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .class_mask = PCI_ANY_ID,
+ .class = class,
+ };
+
+ return pci_get_dev_by_id(&id, from);
}
/**