Re: [PATCH v2 3/4] powerpc/mm: fix a warning when a cache is common to PGD and hugepages

[Christophe LEROY]

Le 23/08/2018 Ã 16:41, Segher Boessenkool a ÃcritÂ:
> On Thu, Aug 23, 2018 at 11:32:16PM +1000, Andrew Donnellan wrote:
> > On 23/08/18 21:56, Michael Ellerman wrote:
> > > Christophe LEROY <christophe.leroy@xxxxxx> writes:
> > >
> > > > Le 23/08/2018 Ã 12:36, Segher Boessenkool a ÃcritÂ:
> > > > > On Thu, Aug 23, 2018 at 11:40:22AM +0200, Christophe LEROY wrote:
> > > > > > The only small problÃme I have is that some version of GCC seems to
> > > > > > complain about big memset() (132k and 256k ones). Is there a way to tell
> > > > > > GCC we really want to do it ?
> > > > >
> > > > > I'm not sure what you mean.  Complain, is that a warning, is that an
> > > > > error?
> > > > > What does it say?  Do you have some example code to reproduce it?  Etc.
> > > >
> > > > I saw the warnings in the checks at
> > > > https://patchwork.ozlabs.org/patch/957566/
> > > > Unfortunatly the link is now broken.
> > >
> > > ruscur/ajd any idea what happened to the snowpatch links here?
> >
> > I think they've disappeared because our log rotation is too fast - I've
> > now upped it to 30 days. I guess over time we'll figure out what we need
> > in this regard, ideally we'd keep logs indefinitely but they're several
> > megs per build.
> >
> > I've kicked off another build for this series and the links in Patchwork
> > should update to point to the new job when it's done (probably in the
> > next couple of hours).
>
> It's back, thanks Andrew!
>
> The warnings are not from GCC at all: the warnings are from sparse.

Oh, ok, my mistake, I reminded seeing those warnings without paying much 
attention to them at that time.

Anyway, should we do anything about this warning ? If so, what 
could/should be done ?

Christophe