linux-kernel - Re: [PATCH 1/2 v2] OF: new helper: of_parse_phandles_with

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Date:	Mon, 13 Oct 2008 10:31:23 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	avorontsov@...mvista.com
Cc:	linuxppc-dev@...abs.org,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Li Yang <leoli@...escale.com>, Timur Tabi <timur@...escale.com>
Subject: Re: [PATCH 1/2 v2] OF: new helper: of_parse_phandles_with_args()

On Fri, 2008-10-10 at 18:43 +0400, Anton Vorontsov wrote:
> The helper is factored out of of_get_gpio(). Will be used by the QE
> pin multiplexing functions (they need to parse the gpios = <> too).
> 
> Signed-off-by: Anton Vorontsov <avorontsov@...mvista.com>
> ---

> +	while (list < list_end) {
> +		const u32 *cells;
> +		const phandle *phandle;
> +
> +		phandle = list;
> +		args = list + 1;
> +
> +		/* one cell hole in the list = <>; */
> +		if (!*phandle) {
> +			list++;
> +			goto next;
> +		}

Allright. I'll merge it. It might have been nicer to write here

		phandle = list++;
		args = list;

		if (!*phandle)
			goto next;

		.../...

		list += *cells;

But it's not big deal, I'll merge it as-is and if you feel like it
you can aways submit a cleanup later. In fact you can even completely
drop "args" I think.

Cheers,
Ben.


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