linux-kernel - Re: [RFC PATCH v2 3/7] sched/idle: Add poll before enter real idle path

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Date:   Thu, 14 Sep 2017 11:18:56 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Quan Xu <quan.xu0@...il.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Yang Zhang <yang.zhang.wz@...il.com>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        wanpeng.li@...mail.com, mst@...hat.com, pbonzini@...hat.com,
        tglx@...utronix.de, rkrcmar@...hat.com, dmatlack@...gle.com,
        agraf@...e.de, linux-doc@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Kyle Huey <me@...ehuey.com>, Andy Lutomirski <luto@...nel.org>,
        Len Brown <len.brown@...el.com>
Subject: Re: [RFC PATCH v2 3/7] sched/idle: Add poll before enter real idle
 path

On Thu, Sep 14, 2017 at 04:41:39PM +0800, Quan Xu wrote:
> > > On Tue, Aug 29, 2017 at 11:46:37AM +0000, Yang Zhang wrote:
> > > > Add poll in do_idle. For UP VM, if there are running task, it will not
> > > > goes into idle path, so we only enable poll in SMP VM.
> > > > 
> > > > Signed-off-by: Yang Zhang <yang.zhang.wz@...il.com>
> > > > Signed-off-by: Quan Xu <quan.xu0@...il.com>
> > > Broken SoB chain.
> >   Peter,  I can't follow 'Broken SoB chain'.. could you explain more
> > about it?
> > 
>     Peter, Ping..

The SOB chain needs to show the path from the author to the upstream
maintainer. Yours has Yang before you, which doesn't say what his role
is.

Read Documentation/process/submitting-patches.rst, section 11.

-- 
Regards/Gruss,
    Boris.

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