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PCI: Convert "new_id"/"remove_id" into generic pci_bus driver attributes 

This patch removes hardcoded sysfs attributes manipulation and
converts them into generic pci_bus->drv_attrs. This saves several bytes.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
hifive-unleashed-5.1
Konstantin Khlebnikov 2012-08-08 14:47:51 +04:00 committed by Bjorn Helgaas
parent 55d512e245
commit bfb09a86f5
1 changed files with 10 additions and 47 deletions
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57
drivers/pci/pci-driver.c
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@ -139,7 +139,6 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
return retval;
return count;
}
static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
/**
* store_remove_id - remove a PCI device ID from this driver
@ -185,38 +184,16 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
return retval;
return count;
}
static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id);
static int
pci_create_newid_files(struct pci_driver *drv)
{
int error = 0;
static struct driver_attribute pci_drv_attrs[] = {
__ATTR(new_id, S_IWUSR, NULL, store_new_id),
__ATTR(remove_id, S_IWUSR, NULL, store_remove_id),
__ATTR_NULL,
};
if (drv->probe != NULL) {
error = driver_create_file(&drv->driver, &driver_attr_new_id);
if (error == 0) {
error = driver_create_file(&drv->driver,
&driver_attr_remove_id);
if (error)
driver_remove_file(&drv->driver,
&driver_attr_new_id);
}
}
return error;
}
static void pci_remove_newid_files(struct pci_driver *drv)
{
driver_remove_file(&drv->driver, &driver_attr_remove_id);
driver_remove_file(&drv->driver, &driver_attr_new_id);
}
#else /* !CONFIG_HOTPLUG */
static inline int pci_create_newid_files(struct pci_driver *drv)
{
return 0;
}
static inline void pci_remove_newid_files(struct pci_driver *drv) {}
#endif
#else
#define pci_drv_attrs NULL
#endif /* CONFIG_HOTPLUG */
/**
* pci_match_id - See if a pci device matches a given pci_id table
@ -1162,8 +1139,6 @@ const struct dev_pm_ops pci_dev_pm_ops = {
int __pci_register_driver(struct pci_driver *drv, struct module *owner,
const char *mod_name)
{
int error;
/* initialize common driver fields */
drv->driver.name = drv->name;
drv->driver.bus = &pci_bus_type;
@ -1174,19 +1149,7 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner,
INIT_LIST_HEAD(&drv->dynids.list);
/* register with core */
error = driver_register(&drv->driver);
if (error)
goto out;
error = pci_create_newid_files(drv);
if (error)
goto out_newid;
out:
return error;
out_newid:
driver_unregister(&drv->driver);
goto out;
return driver_register(&drv->driver);
}
/**
@ -1202,7 +1165,6 @@ out_newid:
void
pci_unregister_driver(struct pci_driver *drv)
{
pci_remove_newid_files(drv);
driver_unregister(&drv->driver);
pci_free_dynids(drv);
}
@ -1302,6 +1264,7 @@ struct bus_type pci_bus_type = {
.shutdown = pci_device_shutdown,
.dev_attrs = pci_dev_attrs,
.bus_attrs = pci_bus_attrs,
.drv_attrs = pci_drv_attrs,
.pm = PCI_PM_OPS_PTR,
};