From: Arnd Bergmann <arnd@arndb.de>
To: Thierry Reding <thierry.reding@avionic-design.de>
Cc: linux-kernel@vger.kernel.org,
Linus Walleij <linus.walleij@stericsson.com>,
Grant Likely <grant.likely@secretlab.ca>
Subject: Re: [PATCH] gpiolib: Use seq_file's iterator interface
Date: Sat, 12 May 2012 12:56:14 +0000 [thread overview]
Message-ID: <201205121256.14283.arnd@arndb.de> (raw)
In-Reply-To: <1334229961-1844-1-git-send-email-thierry.reding@avionic-design.de>
On Thursday 12 April 2012, Thierry Reding wrote:
> When dumping a collection of items via seq_file, it is recommended to
> use the iterator interface. For the gpiolib debugfs interface this can
> be done to dump each GPIO chip in turn.
>
> Note that for gpiolib this is a little cumbersome because it does not
> provide a list of registered GPIO chips and the only way to iterate is
> over each GPIO individually. Once a chip is found, the number of GPIOs
> it provides can be skipped as a small optimization.
>
> This patch was requested by Arnd Bergmann here:
>
> http://article.gmane.org/gmane.linux.ports.tegra/3535
>
> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
> Cc: Linus Walleij <linus.walleij@stericsson.com>
> Cc: Grant Likely <grant.likely@secretlab.ca>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: linux-kernel@vger.kernel.org
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2012-05-12 12:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-12 11:26 [PATCH] gpiolib: Use seq_file's iterator interface Thierry Reding
2012-05-11 23:48 ` Grant Likely
2012-05-12 12:56 ` Arnd Bergmann [this message]
2012-07-23 12:12 ` Thierry Reding
2012-08-04 23:08 ` Linus Walleij
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