linux-kernel - Re: [RFC PATCH 07/16] PCI: Separate pci_host_bridge creation out of pci_create_root

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Message-ID: <546B3E7D.4030800@huawei.com>
Date:	Tue, 18 Nov 2014 20:41:33 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	<linuxppc-dev@...ts.ozlabs.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Liviu Dudau <liviu@...au.co.uk>,
	Tony Luck <tony.luck@...el.com>,
	"Russell King" <linux@....linux.org.uk>,
	<linux-pci@...r.kernel.org>, <x86@...nel.org>,
	<linux-kernel@...r.kernel.org>, Xinwei Hu <huxinwei@...wei.com>,
	"Thierry Reding" <thierry.reding@...il.com>,
	<Suravee.Suthikulpanit@....com>, <linux-ia64@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Wuyun <wuyun.wu@...wei.com>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH 07/16] PCI: Separate pci_host_bridge creation out
 of pci_create_root_bus()

>>>> We need, some platforms pass NULL pointer as host bridge parent.
>>>
>>> But those don't have to use the new pci_create_host_bridge() function,
>>> right?
>>
>> As I mentioned in another reply, I hope all pci host drivers could use
>> pci_create_host_bridge(), keep different PCI scan interfaces in PCI core
>> make things become complex.
> 
> Doing this for all platforms that have PCI support would be a lot of
> work though, I think it's better to focus on having a the best interface
> for the majority of users.

Yes.

> 
> 	Arnd
> 
> .
> 


-- 
Thanks!
Yijing

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