From: Daniel Egger <degger@fhm.edu>
To: Frank Davis <fdavis@si.rr.com>
Cc: linux-kernel@vger.kernel.org, torvalds@transmeta.com
Subject: Re: [PATCH] 2.5.43 : drivers/block/xd.c
Date: 21 Oct 2002 01:33:17 +0200 [thread overview]
Message-ID: <1035156808.17725.4.camel@sonja.de.interearth.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0210182055450.15417-100000@localhost.localdomain>
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Am Sam, 2002-10-19 um 02.58 schrieb Frank Davis:
> Hello all,
> The following fixes a 'used but not declared' compile error. Please review
> for inclusion.
The "standard" way of achieving the same would be to assign the variable
to itself. In your fragment the compiler will initialise the variable to
zero which will cost at least one instruction and thus "bloat" the code,
it'll also be slower due to an additional instruction and may schedule
worse. Not that it mattered much in this case but if you can save a byte
or two... :)
--
Servus,
Daniel
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prev parent reply other threads:[~2002-10-21 7:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-19 0:58 Frank Davis
2002-10-20 23:33 ` Daniel Egger [this message]
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