linux-kernel - Re: [PATCH v6 13/30] PCI: Introduce new scan function pci_scan_host

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Message-ID: <5501915F.80404@huawei.com>
Date:	Thu, 12 Mar 2015 21:15:11 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	Jiang Liu <jiang.liu@...ux.intel.com>, <linux-pci@...r.kernel.org>,
	Yinghai Lu <yinghai@...nel.org>,
	<linux-kernel@...r.kernel.org>,
	Marc Zyngier <marc.zyngier@....com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Russell King <linux@....linux.org.uk>, <x86@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Tony Luck <tony.luck@...el.com>, <linux-ia64@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"Guan Xuetao" <gxt@...c.pku.edu.cn>, <linux-alpha@...r.kernel.org>,
	<linux-m68k@...ts.linux-m68k.org>, Liviu Dudau <liviu@...au.co.uk>,
	"Arnd Bergmann" <arnd@...db.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH v6 13/30] PCI: Introduce new scan function pci_scan_host_bridge()

>> +struct pci_host_bridge *pci_scan_host_bridge(struct device *parent,
>> +		u32 db, struct pci_ops *ops, void *sysdata,
>> +		struct list_head *resources,
>> +		struct pci_host_bridge_ops *phb_ops)
> 
> Drop the "phb_" prefix.

OK.

> 
>> +{
>> +	struct pci_host_bridge *host;
>> +	struct pci_bus *bus;
>> +
>> +	host = pci_create_host_bridge(parent, db, resources,
>> +			sysdata, phb_ops);
>> +	if (!host)
>> +		return NULL;
>> +
>> +	bus = __pci_scan_root_bus(host, ops);
>> +	if (!bus)
>> +		pci_free_host_bridge(host);
>> +
>> +	return host;
>> +}
>> +EXPORT_SYMBOL(pci_scan_host_bridge);
>> +
>> +
>>  struct pci_bus *pci_scan_root_bus(struct device *parent, u32 db,
>>  		struct pci_ops *ops, void *sysdata, struct list_head *resources)
>>  {
>> diff --git a/include/linux/pci.h b/include/linux/pci.h
>> index e9922b1..28eafb5 100644
>> --- a/include/linux/pci.h
>> +++ b/include/linux/pci.h
>> @@ -790,6 +790,10 @@ void pci_bus_release_busn_res(struct pci_bus *b);
>>  struct pci_bus *pci_scan_root_bus(struct device *parent, u32 dombus,
>>  					     struct pci_ops *ops, void *sysdata,
>>  					     struct list_head *resources);
>> +struct pci_host_bridge *pci_scan_host_bridge(struct device *parent,
>> +		u32 dombus, struct pci_ops *ops, void *sysdata,
>> +		struct list_head *resources,
>> +		struct pci_host_bridge_ops *phb_ops);
>>  struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev,
>>  				int busnr);
>>  void pcie_update_link_speed(struct pci_bus *bus, u16 link_status);
>> -- 
>> 1.7.1
>>
>> --
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> 
> .
> 


-- 
Thanks!
Yijing

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