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Date:   Thu, 11 Apr 2019 10:00:24 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Sinan Kaya <okaya@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
        Josh Triplett <josh@...htriplett.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Adrian Reber <adrian@...as.de>,
        Richard Guy Briggs <rgb@...hat.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Petr Mladek <pmladek@...e.com>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Mikulas Patocka <mpatocka@...hat.com>,
        Robin Murphy <robin.murphy@....com>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Subject: Re: [PATCH v3] init: Do not select DEBUG_KERNEL by default

On Wed, Apr 10, 2019 at 10:34 PM Masahiro Yamada
<yamada.masahiro@...ionext.com> wrote:
>
> On Thu, Apr 11, 2019 at 11:47 AM Kees Cook <keescook@...omium.org> wrote:
> >
> > On Wed, Apr 10, 2019 at 5:56 PM Sinan Kaya <okaya@...nel.org> wrote:
> > >
> > > We can't seem to have a kernel with CONFIG_EXPERT set but
> > > CONFIG_DEBUG_KERNEL unset these days.
> > >
> > > While some of the features under the CONFIG_EXPERT require
> > > CONFIG_DEBUG_KERNEL, it doesn't apply for all features.
> > >
> > > It looks like CONFIG_KALLSYMS_ALL is the only feature that
> > > requires CONFIG_DEBUG_KERNEL.
> > >
> > > Select CONFIG_EXPERT when CONFIG_DEBUG_KERNEL is chosen but
> > > you can still choose CONFIG_EXPERT without CONFIG_DEBUG_KERNEL.
> > >
> > > Signed-off-by: Sinan Kaya <okaya@...nel.org>
> > > Reviewed-by: Kees Cook <keescook@...omium.org>
> >
> > Masahiro, should this go via your tree, or somewhere else?
>
>
> I think somewhere else.

Okay. Andrew, can you take this?

-- 
Kees Cook

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