linux-kernel - Re: [PATCH v3 5/9] irqchip/gic-v3: Gather all ACPI specific data in a single structure

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Date:	Fri, 18 Mar 2016 10:42:06 +0100
From:	Christoffer Dall <christoffer.dall@...aro.org>
To:	Julien Grall <julien.grall@....com>
Cc:	kvmarm@...ts.cs.columbia.edu, marc.zyngier@....com,
	fu.wei@...aro.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	wei@...hat.com, al.stone@...aro.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>
Subject: Re: [PATCH v3 5/9] irqchip/gic-v3: Gather all ACPI specific data in
 a single structure

On Tue, Mar 15, 2016 at 12:26:29PM +0000, Julien Grall wrote:
> Hi Christoffer,
> 
> On 09/03/16 05:39, Christoffer Dall wrote:
> >On Tue, Mar 08, 2016 at 11:29:29AM +0000, Julien Grall wrote:
> >>Even though all the variables aren't marked with __initdata, they are
> >>only used during initialization. So the structure is marked with
> >>__initdata.
> >
> >Not sure I understand this commit message.
> >
> >As I see it, this commit includes two changes:
> >
> >1. Mark the variables only used during init with __initdata
> >
> >2. Move the variables into a structure
> >
> >If I get that right, can you argue for both changes?
> 
> What about:
> 
> "The ACPI code requires to use global variables in order to collect
> information from the tables.
> 
> To make clear those variables are ACPI specific, gather all of them
> in a single structure.
> 
> Furthermore, even if some of the variables are not marked with
> __initdata, they are all only used during the initialization.
> Therefore, the new variable, which hold the structure, can be marked
> __initdata."
> 
Looks ok (the part about some of the variables not marked with
__initdata is confusing but I think I understand what you mean).

Thanks,
-Christoffer