summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/hw_random.c2
-rw-r--r--drivers/char/watchdog/i8xx_tco.c2
-rw-r--r--drivers/ide/setup-pci.c2
-rw-r--r--drivers/parport/parport_pc.c2
-rw-r--r--drivers/pci/pci-driver.c196
5 files changed, 75 insertions, 129 deletions
diff --git a/drivers/char/hw_random.c b/drivers/char/hw_random.c
index 7e6ac14c245..3480535a09c 100644
--- a/drivers/char/hw_random.c
+++ b/drivers/char/hw_random.c
@@ -579,7 +579,7 @@ static int __init rng_init (void)
/* Probe for Intel, AMD RNGs */
for_each_pci_dev(pdev) {
- ent = pci_match_device (rng_pci_tbl, pdev);
+ ent = pci_match_id(rng_pci_tbl, pdev);
if (ent) {
rng_ops = &rng_vendor_ops[ent->driver_data];
goto match;
diff --git a/drivers/char/watchdog/i8xx_tco.c b/drivers/char/watchdog/i8xx_tco.c
index b14d642439e..5d07ee59679 100644
--- a/drivers/char/watchdog/i8xx_tco.c
+++ b/drivers/char/watchdog/i8xx_tco.c
@@ -401,7 +401,7 @@ static unsigned char __init i8xx_tco_getdevice (void)
*/
while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
- if (pci_match_device(i8xx_tco_pci_tbl, dev)) {
+ if (pci_match_id(i8xx_tco_pci_tbl, dev)) {
i8xx_tco_pci = dev;
break;
}
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index e501675ad72..77da827b289 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -847,7 +847,7 @@ static int __init ide_scan_pcidev(struct pci_dev *dev)
d = list_entry(l, struct pci_driver, node);
if(d->id_table)
{
- const struct pci_device_id *id = pci_match_device(d->id_table, dev);
+ const struct pci_device_id *id = pci_match_id(d->id_table, dev);
if(id != NULL)
{
if(d->probe(dev, id) >= 0)
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 80edfa3abd2..4598c6a9212 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -3008,7 +3008,7 @@ static int __init parport_pc_init_superio (int autoirq, int autodma)
int ret = 0;
while ((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
- id = pci_match_device (parport_pc_pci_tbl, pdev);
+ id = pci_match_id(parport_pc_pci_tbl, pdev);
if (id == NULL || id->driver_data >= last_sio)
continue;
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index e65bf2b395a..aac6de9568e 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -7,7 +7,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
-#include <linux/pci-dynids.h>
#include "pci.h"
/*
@@ -19,35 +18,11 @@
*/
#ifdef CONFIG_HOTPLUG
-/**
- * pci_device_probe_dynamic()
- *
- * Walk the dynamic ID list looking for a match.
- * returns 0 and sets pci_dev->driver when drv claims pci_dev, else error.
- */
-static int
-pci_device_probe_dynamic(struct pci_driver *drv, struct pci_dev *pci_dev)
-{
- int error = -ENODEV;
- struct list_head *pos;
- struct dynid *dynid;
- spin_lock(&drv->dynids.lock);
- list_for_each(pos, &drv->dynids.list) {
- dynid = list_entry(pos, struct dynid, node);
- if (pci_match_one_device(&dynid->id, pci_dev)) {
- spin_unlock(&drv->dynids.lock);
- error = drv->probe(pci_dev, &dynid->id);
- if (error >= 0) {
- pci_dev->driver = drv;
- return 0;
- }
- return error;
- }
- }
- spin_unlock(&drv->dynids.lock);
- return error;
-}
+struct pci_dynid {
+ struct list_head node;
+ struct pci_device_id id;
+};
/**
* store_new_id
@@ -58,8 +33,7 @@ pci_device_probe_dynamic(struct pci_driver *drv, struct pci_dev *pci_dev)
static inline ssize_t
store_new_id(struct device_driver *driver, const char *buf, size_t count)
{
- struct dynid *dynid;
- struct bus_type * bus;
+ struct pci_dynid *dynid;
struct pci_driver *pdrv = to_pci_driver(driver);
__u32 vendor=PCI_ANY_ID, device=PCI_ANY_ID, subvendor=PCI_ANY_ID,
subdevice=PCI_ANY_ID, class=0, class_mask=0;
@@ -91,37 +65,22 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
list_add_tail(&pdrv->dynids.list, &dynid->node);
spin_unlock(&pdrv->dynids.lock);
- bus = get_bus(pdrv->driver.bus);
- if (bus) {
- if (get_driver(&pdrv->driver)) {
- down_write(&bus->subsys.rwsem);
- driver_attach(&pdrv->driver);
- up_write(&bus->subsys.rwsem);
- put_driver(&pdrv->driver);
- }
- put_bus(bus);
+ if (get_driver(&pdrv->driver)) {
+ driver_attach(&pdrv->driver);
+ put_driver(&pdrv->driver);
}
return count;
}
-
static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
-static inline void
-pci_init_dynids(struct pci_dynids *dynids)
-{
- spin_lock_init(&dynids->lock);
- INIT_LIST_HEAD(&dynids->list);
-}
static void
pci_free_dynids(struct pci_driver *drv)
{
- struct list_head *pos, *n;
- struct dynid *dynid;
+ struct pci_dynid *dynid, *n;
spin_lock(&drv->dynids.lock);
- list_for_each_safe(pos, n, &drv->dynids.list) {
- dynid = list_entry(pos, struct dynid, node);
+ list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
list_del(&dynid->node);
kfree(dynid);
}
@@ -138,83 +97,70 @@ pci_create_newid_file(struct pci_driver *drv)
return error;
}
-static int
-pci_bus_match_dynids(const struct pci_dev *pci_dev, struct pci_driver *pci_drv)
-{
- struct list_head *pos;
- struct dynid *dynid;
-
- spin_lock(&pci_drv->dynids.lock);
- list_for_each(pos, &pci_drv->dynids.list) {
- dynid = list_entry(pos, struct dynid, node);
- if (pci_match_one_device(&dynid->id, pci_dev)) {
- spin_unlock(&pci_drv->dynids.lock);
- return 1;
- }
- }
- spin_unlock(&pci_drv->dynids.lock);
- return 0;
-}
-
#else /* !CONFIG_HOTPLUG */
-static inline int pci_device_probe_dynamic(struct pci_driver *drv, struct pci_dev *pci_dev)
-{
- return -ENODEV;
-}
-static inline void pci_init_dynids(struct pci_dynids *dynids) {}
static inline void pci_free_dynids(struct pci_driver *drv) {}
static inline int pci_create_newid_file(struct pci_driver *drv)
{
return 0;
}
-static inline int pci_bus_match_dynids(const struct pci_dev *pci_dev, struct pci_driver *pci_drv)
-{
- return 0;
-}
#endif
/**
- * pci_match_device - Tell if a PCI device structure has a matching
- * PCI device id structure
+ * pci_match_id - See if a pci device matches a given pci_id table
* @ids: array of PCI device id structures to search in
- * @dev: the PCI device structure to match against
- *
+ * @dev: the PCI device structure to match against.
+ *
* Used by a driver to check whether a PCI device present in the
- * system is in its list of supported devices.Returns the matching
+ * system is in its list of supported devices. Returns the matching
* pci_device_id structure or %NULL if there is no match.
+ *
+ * Depreciated, don't use this as it will not catch any dynamic ids
+ * that a driver might want to check for.
*/
-const struct pci_device_id *
-pci_match_device(const struct pci_device_id *ids, const struct pci_dev *dev)
+const struct pci_device_id *pci_match_id(const struct pci_device_id *ids,
+ struct pci_dev *dev)
{
- while (ids->vendor || ids->subvendor || ids->class_mask) {
- if (pci_match_one_device(ids, dev))
- return ids;
- ids++;
+ if (ids) {
+ while (ids->vendor || ids->subvendor || ids->class_mask) {
+ if (pci_match_one_device(ids, dev))
+ return ids;
+ ids++;
+ }
}
return NULL;
}
/**
- * pci_device_probe_static()
- *
- * returns 0 and sets pci_dev->driver when drv claims pci_dev, else error.
+ * pci_match_device - Tell if a PCI device structure has a matching
+ * PCI device id structure
+ * @ids: array of PCI device id structures to search in
+ * @dev: the PCI device structure to match against
+ * @drv: the PCI driver to match against
+ *
+ * Used by a driver to check whether a PCI device present in the
+ * system is in its list of supported devices. Returns the matching
+ * pci_device_id structure or %NULL if there is no match.
*/
-static int
-pci_device_probe_static(struct pci_driver *drv, struct pci_dev *pci_dev)
-{
- int error = -ENODEV;
+const struct pci_device_id *pci_match_device(struct pci_driver *drv,
+ struct pci_dev *dev)
+{
const struct pci_device_id *id;
+ struct pci_dynid *dynid;
- if (!drv->id_table)
- return error;
- id = pci_match_device(drv->id_table, pci_dev);
+ id = pci_match_id(drv->id_table, dev);
if (id)
- error = drv->probe(pci_dev, id);
- if (error >= 0) {
- pci_dev->driver = drv;
- error = 0;
+ return id;
+
+ /* static ids didn't match, lets look at the dynamic ones */
+ spin_lock(&drv->dynids.lock);
+ list_for_each_entry(dynid, &drv->dynids.list, node) {
+ if (pci_match_one_device(&dynid->id, dev)) {
+ spin_unlock(&drv->dynids.lock);
+ return &dynid->id;
+ }
}
- return error;
+ spin_unlock(&drv->dynids.lock);
+ return NULL;
}
/**
@@ -225,13 +171,20 @@ pci_device_probe_static(struct pci_driver *drv, struct pci_dev *pci_dev)
*/
static int
__pci_device_probe(struct pci_driver *drv, struct pci_dev *pci_dev)
-{
+{
+ const struct pci_device_id *id;
int error = 0;
if (!pci_dev->driver && drv->probe) {
- error = pci_device_probe_static(drv, pci_dev);
- if (error == -ENODEV)
- error = pci_device_probe_dynamic(drv, pci_dev);
+ error = -ENODEV;
+
+ id = pci_match_device(drv, pci_dev);
+ if (id)
+ error = drv->probe(pci_dev, id);
+ if (error >= 0) {
+ pci_dev->driver = drv;
+ error = 0;
+ }
}
return error;
}
@@ -371,12 +324,6 @@ static struct kobj_type pci_driver_kobj_type = {
.sysfs_ops = &pci_driver_sysfs_ops,
};
-static int
-pci_populate_driver_dir(struct pci_driver *drv)
-{
- return pci_create_newid_file(drv);
-}
-
/**
* pci_register_driver - register a new pci driver
* @drv: the driver structure to register
@@ -401,13 +348,15 @@ int pci_register_driver(struct pci_driver *drv)
drv->driver.shutdown = pci_device_shutdown;
drv->driver.owner = drv->owner;
drv->driver.kobj.ktype = &pci_driver_kobj_type;
- pci_init_dynids(&drv->dynids);
+
+ spin_lock_init(&drv->dynids.lock);
+ INIT_LIST_HEAD(&drv->dynids.list);
/* register with core */
error = driver_register(&drv->driver);
if (!error)
- pci_populate_driver_dir(drv);
+ error = pci_create_newid_file(drv);
return error;
}
@@ -463,21 +412,17 @@ pci_dev_driver(const struct pci_dev *dev)
* system is in its list of supported devices.Returns the matching
* pci_device_id structure or %NULL if there is no match.
*/
-static int pci_bus_match(struct device * dev, struct device_driver * drv)
+static int pci_bus_match(struct device *dev, struct device_driver *drv)
{
- const struct pci_dev * pci_dev = to_pci_dev(dev);
- struct pci_driver * pci_drv = to_pci_driver(drv);
- const struct pci_device_id * ids = pci_drv->id_table;
+ struct pci_dev *pci_dev = to_pci_dev(dev);
+ struct pci_driver *pci_drv = to_pci_driver(drv);
const struct pci_device_id *found_id;
- if (!ids)
- return 0;
-
- found_id = pci_match_device(ids, pci_dev);
+ found_id = pci_match_device(pci_drv, pci_dev);
if (found_id)
return 1;
- return pci_bus_match_dynids(pci_dev, pci_drv);
+ return 0;
}
/**
@@ -536,6 +481,7 @@ static int __init pci_driver_init(void)
postcore_initcall(pci_driver_init);
+EXPORT_SYMBOL(pci_match_id);
EXPORT_SYMBOL(pci_match_device);
EXPORT_SYMBOL(pci_register_driver);
EXPORT_SYMBOL(pci_unregister_driver);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-08 06:44:11 +0000