[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / pci / hotplug-pci.c

/* Core PCI functionality used only by PCI hotplug */

#include <linux/pci.h>
#include <linux/export.h>
#include "pci.h"

int __ref pci_hp_add_bridge(struct pci_dev *dev)
{
	struct pci_bus *parent = dev->bus;
	int pass, busnr, start = parent->busn_res.start;
	int end = parent->busn_res.end;

	for (busnr = start; busnr <= end; busnr++) {
		if (!pci_find_bus(pci_domain_nr(parent), busnr))
			break;
	}
	if (busnr-- > end) {
		printk(KERN_ERR "No bus number available for hot-added bridge %s\n",
				pci_name(dev));
		return -1;
	}
	for (pass = 0; pass < 2; pass++)
		busnr = pci_scan_bridge(parent, dev, busnr, pass);
	if (!dev->subordinate)
		return -1;

	return 0;
}
EXPORT_SYMBOL_GPL(pci_hp_add_bridge);
Commit	Line	Data
4105717b SR	1	/* Core PCI functionality used only by PCI hotplug */
	2
	3	#include <linux/pci.h>
363c75db	4	#include <linux/export.h>
4105717b SR	5	#include "pci.h"
4105717b SR	6
a8e4b9c1 YL	7	int __ref pci_hp_add_bridge(struct pci_dev *dev)
	8	{
	9	struct pci_bus *parent = dev->bus;
	10	int pass, busnr, start = parent->busn_res.start;
	11	int end = parent->busn_res.end;
	12
	13	for (busnr = start; busnr <= end; busnr++) {
	14	if (!pci_find_bus(pci_domain_nr(parent), busnr))
	15	break;
	16	}
	17	if (busnr-- > end) {
	18	printk(KERN_ERR "No bus number available for hot-added bridge %s\n",
	19	pci_name(dev));
	20	return -1;
	21	}
	22	for (pass = 0; pass < 2; pass++)
	23	busnr = pci_scan_bridge(parent, dev, busnr, pass);
	24	if (!dev->subordinate)
	25	return -1;
	26
	27	return 0;
	28	}
	29	EXPORT_SYMBOL_GPL(pci_hp_add_bridge);