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staging: comedi: remove old auto-config 

All the Comedi drivers that call `comedi_pci_auto_config()` or
`comedi_usb_auto_config()` define a `auto_attach()` handler in their
`struct comedi_driver`.  There is no need to fall back to abusing the
`attach()` handler any more, so remove the code that supports that.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2012-11-14 13:10:34 +00:00 committed by Greg Kroah-Hartman
parent 206cb10816
commit 847d74a260
1 changed files with 2 additions and 65 deletions
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67
drivers/staging/comedi/drivers.c
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@ -879,49 +879,6 @@ comedi_auto_config_helper(struct device *hardware_device,
return ret;
}
static int comedi_old_auto_config_wrapper(struct comedi_device *dev,
unsigned long context)
{
struct comedi_devconfig *it = (struct comedi_devconfig *)context;
struct comedi_driver *driv = dev->driver;
if (driv->num_names) {
/* look for generic board entry matching driver name, which
* has already been copied to it->board_name */
dev->board_ptr = comedi_recognize(driv, it->board_name);
if (dev->board_ptr == NULL) {
dev_warn(dev->class_dev,
"auto config failed to find board entry '%s' for driver '%s'\n",
it->board_name, driv->driver_name);
comedi_report_boards(driv);
return -EINVAL;
}
}
if (!driv->attach) {
dev_warn(dev->class_dev,
"BUG! driver '%s' using old-style auto config but has no attach handler\n",
driv->driver_name);
return -EINVAL;
}
return driv->attach(dev, it);
}
static int comedi_old_auto_config(struct device *hardware_device,
struct comedi_driver *driver,
const int *options, unsigned num_options)
{
struct comedi_devconfig it;
memset(&it, 0, sizeof(it));
strncpy(it.board_name, driver->driver_name, COMEDI_NAMELEN);
it.board_name[COMEDI_NAMELEN - 1] = '\0';
BUG_ON(num_options > COMEDI_NDEVCONFOPTS);
memcpy(it.options, options, num_options * sizeof(int));
return comedi_auto_config_helper(hardware_device, driver,
comedi_old_auto_config_wrapper,
(unsigned long)&it);
}
static int comedi_auto_config_wrapper(struct comedi_device *dev,
unsigned long context)
{
@ -990,20 +947,6 @@ void comedi_pci_disable(struct pci_dev *pdev)
}
EXPORT_SYMBOL_GPL(comedi_pci_disable);
static int comedi_old_pci_auto_config(struct pci_dev *pcidev,
struct comedi_driver *driver)
{
int options[2];
/* pci bus */
options[0] = pcidev->bus->number;
/* pci slot */
options[1] = PCI_SLOT(pcidev->devfn);
return comedi_old_auto_config(&pcidev->dev, driver,
options, ARRAY_SIZE(options));
}
static int comedi_pci_attach_wrapper(struct comedi_device *dev,
unsigned long context)
{
@ -1026,7 +969,7 @@ int comedi_pci_auto_config(struct pci_dev *pcidev, struct comedi_driver *driver)
else if (driver->auto_attach)
return comedi_auto_config(&pcidev->dev, driver, 0);
else
return comedi_old_pci_auto_config(pcidev, driver);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(comedi_pci_auto_config);
@ -1069,12 +1012,6 @@ EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister);
#if IS_ENABLED(CONFIG_USB)
static int comedi_old_usb_auto_config(struct usb_interface *intf,
struct comedi_driver *driver)
{
return comedi_old_auto_config(&intf->dev, driver, NULL, 0);
}
static int comedi_usb_attach_wrapper(struct comedi_device *dev,
unsigned long context)
{
@ -1098,7 +1035,7 @@ int comedi_usb_auto_config(struct usb_interface *intf,
else if (driver->auto_attach)
return comedi_auto_config(&intf->dev, driver, 0);
else
return comedi_old_usb_auto_config(intf, driver);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(comedi_usb_auto_config);