linux-kernel - Re: [PATCH 3/7] clk: sunxi: avoid double DT matching

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Date:	Tue, 13 May 2014 10:12:11 -0500
From:	Rob Herring <robh@...nel.org>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Cc:	Rob Herring <robh@...nel.org>,
	Emilio López <emilio@...pez.com.ar>,
	Mike Turquette <mturquette@...aro.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Subject: Re: [PATCH 3/7] clk: sunxi: avoid double DT matching

On Mon, May 12, 2014 at 7:29 PM, Rob Herring <robherring2@...il.com> wrote:
> From: Rob Herring <robh@...nel.org>
>
> Use for_each_matching_node_and_match instead of for_each_matching_node plus
> of_match_node to avoid searching the DT twice for each node.
>
> The sunxi DT scanning code should really be re-worked rather than have
> its own private matching infrastructure. It is working around needing a
> function pointer and a data pointer for each compatible match.
>
> Signed-off-by: Rob Herring <robh@...nel.org>
> Cc: "Emilio López" <emilio@...pez.com.ar>
> Cc: Mike Turquette <mturquette@...aro.org>
> Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>
> ---
>  drivers/clk/sunxi/clk-sunxi.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
> index bd7dc73..7977106 100644
> --- a/drivers/clk/sunxi/clk-sunxi.c
> +++ b/drivers/clk/sunxi/clk-sunxi.c
> @@ -1278,8 +1278,7 @@ static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_mat
>         const struct of_device_id *match;
>         void (*setup_function)(struct device_node *, const void *) = function;
>
> -       for_each_matching_node(np, clk_match) {
> -               match = of_match_node(clk_match, np);
> +       for_each_matching_node_and_match(np, clk_match, match) {

I missed folding in a fix and this should be &match instead of match.

Rob

>                 data = match->data;
>                 setup_function(np, data);
>         }
> --
> 1.9.1
>
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