linux-kernel - Re: [PATCH 3/4][v2] x86, hibernate: Extract the common code of 64/32 bit system

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Message-ID: <20180918133643.GA3120@chenyu-desktop>
Date:   Tue, 18 Sep 2018 21:36:44 +0800
From:   Yu Chen <yu.c.chen@...el.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Thomas Gleixner <tglx@...utronix.de>, Pavel Machek <pavel@....cz>,
        Rui Zhang <rui.zhang@...el.com>,
        Chen Yu <yu.chen.surf@...il.com>,
        Zhimin Gu <kookoo.gu@...el.com>,
        Len Brown <len.brown@...el.com>, linux-kernel@...r.kernel.org,
        x86@...nel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH 3/4][v2] x86, hibernate: Extract the common code of 64/32
 bit system

Hi,
On Fri, Sep 14, 2018 at 11:21:17AM +0200, Rafael J. Wysocki wrote:
> On Tuesday, September 11, 2018 7:20:46 PM CEST Chen Yu wrote:
> > From: Zhimin Gu <kookoo.gu@...el.com>
> > 
> > Reduce the hibernation code duplication between x86-32 and x86-64
> > by extracting the common code into hibernate.c.
> > 
> > No functional change.
> > 
> > +#include "hibernate.c"
> 
> I don't particularly like this.
> 
> Why excatly do you need to include the C file here?
>
OK, I've removed this in a new version.
> Also, the way this change is made makes it quite hard to review, as the
> new code is not exactly the same as the code being removed, so it is
> hard to say whether or not there really are no functional changes
> as claimed.
I've splitted the patch into several sub-patches and reorganized the
code to make it more readable on a new version.
> 
> This is sensitive code, mind you, and really hard to debug if anything goes
> wrong.  Please be super-careful about changing it.
> 
Ok, will test on several platforms and send out the modification.
Best,
Yu
> Thanks,
> Rafael
>