Re: __udivdi3 and linux kernel u64 division question [x86]

[Arjan van de Ven]

On Tue, 2005-05-24 at 14:29 +0200, Mateusz Berezecki wrote:
> Hi list members,
> 
> After a failure of compilation of the similar code snippet
> 
> 
> u64 mconst = somebig64bitvalue;
> u64 tmp = some32bitvalue;
> u64 r = mconst / tmp;

you shouldn't do this in linux

> I've also found a do_div() and it was sufficent for my purposes but Im
> still curious about
> __udivdi3. Can someone explain this issue to me?

do_div is a very small subset of divides.

Also.. you forgot to put the URL of your module into your email..



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