linux-kernel - Re: [PATCHv2] Make for_each_cpu

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Message-ID: <jeej8742nt.fsf@sykes.suse.de>
Date:	Mon, 12 May 2008 23:45:42 +0200
From:	Andreas Schwab <schwab@...e.de>
To:	Alexander van Heukelum <heukelum@...lshack.com>
Cc:	Mike Travis <travis@....com>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Jackson <pj@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Matthew Wilcox <matthew@....cx>,
	ARCH <linux-arch@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexander van Heukelum <heukelum@...tmail.fm>
Subject: Re: [PATCHv2] Make for_each_cpu_mask a bit smaller

Alexander van Heukelum <heukelum@...lshack.com> writes:

> +#define for_each_cpu_mask(cpu, mask)			\
> +	for ((cpu) = ~((typeof(cpu))0);			\

There is no need for such a complicated expression, -1 will work for
every (arithmetic) type.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@...e.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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"And now for something completely different."
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