Re: [PATCH] udivdi3: 64 bit divide


On Feb 27 2007 22:39, Ian Molton wrote:
Russell King wrote:
On Tue, Feb 27, 2007 at 01:36:56PM -0800, Andrew Morton wrote:
On Tue, 27 Feb 2007 13:18:40 -0800 Stephen Hemminger
<shemminger@xxxxxxxxxxxxxxxxxxxx> wrote:
Then we should pull the existing udivdi3 implementations?

Not much point really. Some architectures have gone
and done that, but x86 has not. x86 has enough
coverage for us to pick up most problems, and any
remaining problems are obviously in scruffy
architectures which don't care about performance ;)

I doubt arm26 uses udivdi3, but that's something Ian
would have to confirm.

I doubt it is used also, however I am not in a position
to test this until at least after I have moved house.
Please leave alone for now.

Simple. The non-arch specific code does not use 64/64
divides through the "/" operator (otherwise there would
already have been udivdi3 linking errors). So what
remains to check is arch/arm26. grep -Pr 'int64|\bu64'
returns only a few results to check (kernel/ecard.c,
nwfpe/), so the answer is most likely no.



Jan
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