From: "David S. Miller" <davem@redhat.com>
To: antirez@invece.org
Cc: linux-kernel@vger.kernel.org
Subject: Re: * 4 converted to << 2 for networking code
Date: Wed, 10 Jan 2001 06:38:35 -0800 [thread overview]
Message-ID: <200101101438.GAA02263@pizda.ninka.net> (raw)
In-Reply-To: <20010110174859.R7498@prosa.it> (message from antirez on Wed, 10 Jan 2001 17:48:59 +0100)
In-Reply-To: <20010110174859.R7498@prosa.it>
Date: Wed, 10 Jan 2001 17:48:59 +0100
From: antirez <antirez@invece.org>
The attached patch converts many occurences of '* 4' in the
networking code (often used to convert in bytes the TCP data offset
and the IP header len) to the faster '<< 2'.
The compiler does this for you, check the assembler it outputs.
Later,
David S. Miller
davem@redhat.com
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next prev parent reply other threads:[~2001-01-10 14:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-10 16:48 antirez
2001-01-10 14:38 ` David S. Miller [this message]
2001-01-10 14:54 ` Brian Gerst
2001-01-10 17:03 ` antirez
2001-01-10 15:11 ` Jakob Østergaard
2001-01-10 15:18 ` Mike Harrold
2001-01-10 15:31 ` Chris Jones
2001-01-10 16:23 ` Jamie Lokier
2001-01-10 16:26 ` Mike Harrold
2001-01-10 17:25 ` antirez
2001-01-10 16:25 ` Pauline Middelink
2001-01-11 0:29 ` H. Peter Anvin
2001-01-10 22:21 ` Matthias Andree
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