mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
e04a2bd6d8
The Kconfig for this support is currently:
config IDEPCI_PCIBUS_ORDER
bool "Probe IDE PCI devices in the PCI bus order (DEPRECATED)"
...meaning that it currently is not being built as a module by anyone.
Lets change the initcall to be the equivalent device_initcall, so that
when reading the driver code, there is no doubt it is builtin-only.
Unlike other similar changes, we leave the module.h header to be
included since this code interacts with other drivers and needs to
know what a struct module is.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/*
|
|
* support for probing IDE PCI devices in the PCI bus order
|
|
*
|
|
* Copyright (c) 1998-2000 Andre Hedrick <andre@linux-ide.org>
|
|
* Copyright (c) 1995-1998 Mark Lord
|
|
*
|
|
* May be copied or modified under the terms of the GNU General Public License
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/ide.h>
|
|
|
|
/*
|
|
* Module interfaces
|
|
*/
|
|
|
|
static int pre_init = 1; /* Before first ordered IDE scan */
|
|
static LIST_HEAD(ide_pci_drivers);
|
|
|
|
/*
|
|
* __ide_pci_register_driver - attach IDE driver
|
|
* @driver: pci driver
|
|
* @module: owner module of the driver
|
|
*
|
|
* Registers a driver with the IDE layer. The IDE layer arranges that
|
|
* boot time setup is done in the expected device order and then
|
|
* hands the controllers off to the core PCI code to do the rest of
|
|
* the work.
|
|
*
|
|
* Returns are the same as for pci_register_driver
|
|
*/
|
|
|
|
int __ide_pci_register_driver(struct pci_driver *driver, struct module *module,
|
|
const char *mod_name)
|
|
{
|
|
if (!pre_init)
|
|
return __pci_register_driver(driver, module, mod_name);
|
|
driver->driver.owner = module;
|
|
list_add_tail(&driver->node, &ide_pci_drivers);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(__ide_pci_register_driver);
|
|
|
|
/**
|
|
* ide_scan_pcidev - find an IDE driver for a device
|
|
* @dev: PCI device to check
|
|
*
|
|
* Look for an IDE driver to handle the device we are considering.
|
|
* This is only used during boot up to get the ordering correct. After
|
|
* boot up the pci layer takes over the job.
|
|
*/
|
|
|
|
static int __init ide_scan_pcidev(struct pci_dev *dev)
|
|
{
|
|
struct list_head *l;
|
|
struct pci_driver *d;
|
|
|
|
list_for_each(l, &ide_pci_drivers) {
|
|
d = list_entry(l, struct pci_driver, node);
|
|
if (d->id_table) {
|
|
const struct pci_device_id *id =
|
|
pci_match_id(d->id_table, dev);
|
|
|
|
if (id != NULL && d->probe(dev, id) >= 0) {
|
|
dev->driver = d;
|
|
pci_dev_get(dev);
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ide_scan_pcibus - perform the initial IDE driver scan
|
|
*
|
|
* Perform the initial bus rather than driver ordered scan of the
|
|
* PCI drivers. After this all IDE pci handling becomes standard
|
|
* module ordering not traditionally ordered.
|
|
*/
|
|
|
|
static int __init ide_scan_pcibus(void)
|
|
{
|
|
struct pci_dev *dev = NULL;
|
|
struct pci_driver *d;
|
|
struct list_head *l, *n;
|
|
|
|
pre_init = 0;
|
|
for_each_pci_dev(dev)
|
|
ide_scan_pcidev(dev);
|
|
|
|
/*
|
|
* Hand the drivers over to the PCI layer now we
|
|
* are post init.
|
|
*/
|
|
|
|
list_for_each_safe(l, n, &ide_pci_drivers) {
|
|
list_del(l);
|
|
d = list_entry(l, struct pci_driver, node);
|
|
if (__pci_register_driver(d, d->driver.owner,
|
|
d->driver.mod_name))
|
|
printk(KERN_ERR "%s: failed to register %s driver\n",
|
|
__func__, d->driver.mod_name);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
device_initcall(ide_scan_pcibus);
|