Messages in this thread | | | Date | Mon, 28 Jan 2019 09:45:03 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] lib/div64: off by one in shift |
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On Mon, 28 Jan 2019 15:49:04 +0100 Stanislaw Gruszka <sgruszka@redhat.com> wrote:
> fls counts bits starting from 1 to 32 (returns 0 for zero argument). > If we add 1 we shift right one bit more and loose precision from > divisor, what cause function incorect results with some numbers. > > Corrected code was tested in user-space, see bugzilla: > https://bugzilla.kernel.org/show_bug.cgi?id=202391
What are the usersoace-visible runtime effects of this change?
Thanks.
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