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SubjectRe: [PATCH v2] ARM: uaccess: Implement strict user copy checks
On Tuesday 24 August 2010, Heiko Carstens wrote:
> On Tue, Aug 24, 2010 at 05:26:08PM +0200, Arnd Bergmann wrote:
> > Can't you just turn that option off then? Or are you worried about
> > allyesconfig builds?
> I'd like to keep an allyesconfig compiling and booting.
> With the proposed change we would never see a green entry at
> for s390's allyesconfig
> build ;)

Yes, that makes sense.

> Then maybe add a "choice" Kconfig option in a way that both allyesconfig
> as well as allnoconfig will build?

I think it would be easier to remove the config option entirely on s390
and just always warn. As I said earlier in this thread, I generally
don't think this particular warning is more important than a lot of
the other ones that we don't turn into errors.

I do think it would be helpful to optionally build parts of the kernel
with the much stronger '-Werror', which we already do for some
architectures. You could do that with inverted logic (bool "Disable -Werror
compile option) and fix all warnings in allnoconfig to make all of
allnoconfig, allyesconfig and defconfig build.


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