linux-kernel - Re: [PATCH v7 2/3] clk: introduce the common clock framework

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Message-ID: <20120318140707.GC29638@S2101-09.ap.freescale.net>
Date:	Sun, 18 Mar 2012 22:07:10 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Mike Turquette <mturquette@...aro.org>
Cc:	Russell King <linux@....linux.org.uk>,
	Paul Walmsley <paul@...an.com>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	patches@...aro.org, Stephen Boyd <sboyd@...eaurora.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Magnus Damm <magnus.damm@...il.com>,
	linux-kernel@...r.kernel.org,
	Saravana Kannan <skannan@...eaurora.org>,
	linaro-dev@...ts.linaro.org,
	Jeremy Kerr <jeremy.kerr@...onical.com>,
	Arnd Bergman <arnd.bergmann@...aro.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v7 2/3] clk: introduce the common clock framework

Another trivial comment.  But if there is an incremental patch, maybe
consider to include it.

On Thu, Mar 15, 2012 at 11:11:19PM -0700, Mike Turquette wrote:
...
> +#ifdef CONFIG_COMMON_CLK_DISABLE_UNUSED
> +static int clk_disable_unused(void)
> +{
> +	struct clk *clk;
> +	struct hlist_node *tmp;
> +
> +	mutex_lock(&prepare_lock);
> +
> +	hlist_for_each_entry(clk, tmp, &clk_root_list, child_node)
> +		clk_disable_unused_subtree(clk);
> +
> +	hlist_for_each_entry(clk, tmp, &clk_orphan_list, child_node)
> +		clk_disable_unused_subtree(clk);
> +
> +	mutex_unlock(&prepare_lock);
> +
> +	return 0;
> +}
> +late_initcall(clk_disable_unused);
> +#else
> +static inline int clk_disable_unused(struct clk *clk) { return 0; }

This #else block seems completely unnecessary to me.

> +#endif /* CONFIG_COMMON_CLK_DISABLE_UNUSED */

-- 
Regards,
Shawn
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