linux-kernel - Re: [PATCH] arm: remove unused code in delay.S

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Message-ID: <m3k4zzdimy.fsf@intrepid.localdomain>
Date:	Tue, 15 Sep 2009 23:04:37 +0200
From:	Krzysztof Halasa <khc@...waw.pl>
To:	Steve Chen <schen@...sta.com>
Cc:	Felipe Contreras <felipe.contreras@...il.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Jamie Lokier <jamie@...reable.org>,
	linux-kernel@...r.kernel.org, Marek Vasut <marek.vasut@...il.com>,
	Pavel Machek <pavel@....cz>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm: remove unused code in delay.S

Steve Chen <schen@...sta.com> writes:

> +config OLD_CPU_DELAY
> +	depends on CPU_32v3 || CPU_32v4 || CPU_32v4T
> +	bool "Accurate delays"
> +	def_bool n
> +	help
> +	  Enable if observing longer than expected delays and need more
> +	  accuracy.  This only applies to older CPUs.
> +

If it's that simple then why not enable the extra delay code
unconditionally when compiling for those CPUs?

We don't need "do something better" options.
-- 
Krzysztof Halasa
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