Re: [PATCH] ARM: futex: fix clobbering oldval

From: Will Deacon
Date: Fri Sep 23 2011 - 04:44:16 EST


On Fri, Sep 23, 2011 at 01:18:49AM +0100, mhban wrote:
> On Thu, 2011-09-22 at 18:26 +0100, Will Deacon wrote:
> >
> > It would have been nice to have been CC'd on this...
>
> Will not miss next time. Thanks.

Thanks. You can use scripts/get_maintainer.pl to get a list of people to
email.

> >
> > You shouldn't reference r5 directly here, but due to the way the futex code
> > is laid out, you can't add an extra output operand without converting the
> > code to use named arguments.
> >
> > I'll post a patch to do that.
> >
> > Will
>
> I'm not familiar with gcc inline, thanks for pointing it out.

There's a good guide for ARM here:

http://www.ethernut.de/en/documents/arm-inline-asm.html

> BTW, my last name is Ban not Ben.

Oops, I'll update my reported-by to spell that correctly.

Cheers,

Will
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