linux-kernel - Re: [RFC 1/2] clk: use struct clk only for external API

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Message-ID: <CACRpkdbq02xnVJ4tnZvOFsp8JuP6-F0KLKyyv9TgyY9dWSdDJg@mail.gmail.com>
Date:	Sat, 1 Dec 2012 18:16:34 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Rabin Vincent <rabin.vincent@...ricsson.com>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	Mike Turquette <mturquette@...com>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC 1/2] clk: use struct clk only for external API

On Wed, Nov 28, 2012 at 12:52 PM, Rabin Vincent
<rabin.vincent@...ricsson.com> wrote:

> In order to provide per-user accounting, this separates the struct clk
> used in the common clock framework into two structures 'struct clk_core'
> and 'struct clk'.  struct clk_core will be used for internal
> manipulation and struct clk will be used in the clock API
> implementation.
>
> In this patch, struct clk is simply renamed to struct clk_core and a new
> struct clk is implemented which simply wraps it.  In the next patch, the
> new struct clk will be used to implement per-user clock enable
> accounting.
>
> There is a rather hacky #define of clk_core to clk for the non-common
> clk case in order to avoid a mass rename of all clk non-common clk
> implementations.
>
> Signed-off-by: Rabin Vincent <rabin.vincent@...ricsson.com>

I like the spirit of this and I think it was Thomas Gleixner who early
on strongly recommended that the struct be kept as private as possible.

Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij
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