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yaml
---
r: 91662
b: refs/heads/master
c: 448432c
h: refs/heads/master
v: v3
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Greg Kroah-Hartman committed Apr 21, 2008
1 parent 220f1a5 commit 410793e
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Showing 3 changed files with 16 additions and 23 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2baad5f96b498812626eadb6f6af3eb41d8656a3
refs/heads/master: 448432c4b8e2e3189177d6dbd16b8a8d83c5c11c
35 changes: 15 additions & 20 deletions trunk/drivers/pci/search.c
Original file line number Diff line number Diff line change
Expand Up @@ -436,7 +436,18 @@ struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
return dev;
}

const struct pci_device_id *pci_find_present(const struct pci_device_id *ids)
/**
* pci_dev_present - Returns 1 if device matching the device list is present, 0 if not.
* @ids: A pointer to a null terminated list of struct pci_device_id structures
* that describe the type of PCI device the caller is trying to find.
*
* Obvious fact: You do not have a reference to any device that might be found
* by this function, so if that device is removed from the system right after
* this function is finished, the value will be stale. Use this function to
* find devices that are usually built into a system, or for a general hint as
* to if another device happens to be present at this specific moment in time.
*/
int pci_dev_present(const struct pci_device_id *ids)
{
struct pci_dev *dev;
const struct pci_device_id *found = NULL;
Expand All @@ -452,27 +463,11 @@ const struct pci_device_id *pci_find_present(const struct pci_device_id *ids)
}
exit:
up_read(&pci_bus_sem);
return found;
}

/**
* pci_dev_present - Returns 1 if device matching the device list is present, 0 if not.
* @ids: A pointer to a null terminated list of struct pci_device_id structures
* that describe the type of PCI device the caller is trying to find.
*
* Obvious fact: You do not have a reference to any device that might be found
* by this function, so if that device is removed from the system right after
* this function is finished, the value will be stale. Use this function to
* find devices that are usually built into a system, or for a general hint as
* to if another device happens to be present at this specific moment in time.
*/
int pci_dev_present(const struct pci_device_id *ids)
{
return pci_find_present(ids) == NULL ? 0 : 1;
if (found)
return 1;
return 0;
}

EXPORT_SYMBOL(pci_dev_present);
EXPORT_SYMBOL(pci_find_present);

#ifdef CONFIG_PCI_LEGACY
EXPORT_SYMBOL(pci_find_device);
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2 changes: 0 additions & 2 deletions trunk/include/linux/pci.h
Original file line number Diff line number Diff line change
Expand Up @@ -527,7 +527,6 @@ struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn);
struct pci_dev *pci_get_bus_and_slot(unsigned int bus, unsigned int devfn);
struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from);
int pci_dev_present(const struct pci_device_id *ids);
const struct pci_device_id *pci_find_present(const struct pci_device_id *ids);

int pci_bus_read_config_byte(struct pci_bus *bus, unsigned int devfn,
int where, u8 *val);
Expand Down Expand Up @@ -816,7 +815,6 @@ static inline struct pci_dev *pci_get_class(unsigned int class,

#define pci_dev_present(ids) (0)
#define no_pci_devices() (1)
#define pci_find_present(ids) (NULL)
#define pci_dev_put(dev) do { } while (0)

static inline void pci_set_master(struct pci_dev *dev)
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