Re: * 4 converted to << 2 for networking code

From: Brian Gerst (bgerst@didntduck.org)
Date: Wed Jan 10 2001 - 09:54:04 EST

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antirez wrote:
>
> Hi all,
>
> 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'. Since this was a quite repetitive work it's better
> if someone double-check it before to apply the patch.
> The patch is for linux-2.4.

This patch isn't really necessary, because GCC will automatically
convert multiplications and divisions by powers of two to use shifts.

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