linux-kernel - Re: [PATCH v3 1/3] resource: Use list

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Message-ID: <20180508121123.GI30581@MiWiFi-R3L-srv>
Date:   Tue, 8 May 2018 20:11:23 +0800
From:   Baoquan He <bhe@...hat.com>
To:     Wei Yang <richard.weiyang@...il.com>
Cc:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        robh+dt@...nel.org, dan.j.williams@...el.com,
        nicolas.pitre@...aro.org, josh@...htriplett.org,
        Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
        David Airlie <airlied@...ux.ie>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Frank Rowand <frowand.list@...il.com>,
        Keith Busch <keith.busch@...el.com>,
        Jonathan Derrick <jonathan.derrick@...el.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Brijesh Singh <brijesh.singh@....com>,
        Jérôme Glisse <jglisse@...hat.com>,
        Borislav Petkov <bp@...e.de>,
        Tom Lendacky <thomas.lendacky@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Yaowei Bai <baiyaowei@...s.chinamobile.com>,
        devel@...uxdriverproject.org, linux-input@...r.kernel.org,
        linux-nvdimm@...ts.01.org, devicetree@...r.kernel.org,
        linux-pci@...r.kernel.org
Subject: Re: [PATCH v3 1/3] resource: Use list_head to link sibling resource

On 05/08/18 at 08:48pm, Wei Yang wrote:
> On Mon, May 07, 2018 at 09:14:29AM +0800, Baoquan He wrote:
> >Hi Wei Yang,
> >
> >On 04/26/18 at 09:18am, Wei Yang wrote:
> >> On Thu, Apr 19, 2018 at 08:18:46AM +0800, Baoquan He wrote:
> >> >The struct resource uses singly linked list to link siblings. It's not
> >> >easy to do reverse iteration on sibling list. So replace it with list_head.
> >> >
> >> 
> >> Hi, Baoquan
> >> 
> >> Besides changing the data structure, I have another proposal to do the reverse
> >> iteration. Which means it would not affect other users, if you just want a
> >> reverse iteration.
> >> 
> >> BTW, I don't think Andrew suggest to use linked-list directly. What he wants
> >> is a better solution to your first proposal in
> >> https://patchwork.kernel.org/patch/10300819/.
> >> 
> >> Below is my proposal of resource reverse iteration without changing current
> >> design.
> >
> >I got your mail and read it, then interrupted by other thing and forgot
> >replying, sorry.
> >
> >I am fine with your code change. As I said before, I have tried to change
> >code per reviewers' comment, then let reviewers decide which way is
> >better. Please feel free to post formal patches and joining discussion
> >about this issue.
> 
> Yep, while I don't have a real requirement to add the reverse version, so what
> is the proper way to send a patch?
> 
> A patch reply to this thread is ok?

I am not sure either. Since my patches are still under reviewing. And
you have pasted your patch. It depends on maintainers, mainly Andrew and
other reviewers who have concerns.