Re: div64.h:do_div() bug

From: Matti Aarnio
Date: Tue Sep 30 2003 - 05:17:03 EST


On Tue, Sep 30, 2003 at 11:52:29AM +0200, Rogier Wolff wrote:
> On Mon, Sep 29, 2003 at 03:25:19PM +0200, Artur Klauser wrote:
> > I've found that a bug in asm-arm/div64.h:do_div() is preventing correct
> > conversion of timestamps in smbfs (and probably ntfs as well) from NT to
>
> Nope.

Nope yourself.

> > if (in.n64 != out.n64) {
> > printf("FAILURE: asm/div64.h:do_div() is broken for 64-bit dividends\n");
>
> do_div should be/is documented as not doing 64 bit dividents. It does
> 64/32 -> 32 divides, IIRC...

64/32 -> 64,32

The REMAINDER is 32 bit value.

> Roger.

/Matti Aarnio
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