linux-kernel - Re: [PATCH 00/12] making the kernel -Wshadow clean

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Date:	Mon, 31 Jul 2006 01:36:58 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Andrew Morton <akpm@...l.org>
Cc:	Krzysztof Halasa <khc@...waw.pl>, jesper.juhl@...il.com,
	linux-kernel@...r.kernel.org, nikita@...sterfs.com,
	joe@...ches.com, tali@...ingilde.org, jbglaw@...-owl.de,
	hch@...radead.org, dwmw2@...radead.org, arjan@...radead.org,
	dmitry.torokhov@...il.com, Valdis.Kletnieks@...edu,
	sam@...nborg.org, rmk@....linux.org.uk, rusty@...tcorp.com.au,
	rdunlap@...otime.net
Subject: Re: [PATCH 00/12] making the kernel -Wshadow clean - The initial step

Am Sunday 30 July 2006 20:29 schrieb Andrew Morton:
> While I don't recall any kernel bugs which -Wshadow would have saved us
> from, I think it's a sensible thing to do - it _might_ save us from a bug,
> and we need all the help we can get.

One case where it would have helped in the past is jiffies -- when
experimenting with tickless systems, turning the global jiffies
variable into a macro comes in handy, but that breaks all functions
that have a local variable with the same name.

	Arnd <><
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