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Message-ID: <CAKwvOdkCiS7bn68viW+TwDiwbvSq74zqc0B_xxBs-J0d5ieynQ@mail.gmail.com>
Date:   Mon, 8 Apr 2019 11:11:17 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Tri Vo <trong@...roid.com>, Jessica Yu <jeyu@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Randy Dunlap <rdunlap@...radead.org>
Cc:     Peter Oberparleiter <oberpar@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Hackmann <ghackmann@...roid.com>,
        Linux Memory Management List <linux-mm@...ck.org>,
        kbuild-all@...org, kbuild test robot <lkp@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Petri Gynther <pgynther@...gle.com>
Subject: Re: [PATCH] module: add stub for within_module

On Mon, Apr 8, 2019 at 11:08 AM Nick Desaulniers
<ndesaulniers@...gle.com> wrote:
>
> On Sat, Apr 6, 2019 at 7:26 PM Tri Vo <trong@...roid.com> wrote:
> >
> > Provide a stub for within_module() when CONFIG_MODULES is not set. This
> > is needed to build CONFIG_GCOV_KERNEL.
> >
> > Fixes: 8c3d220cb6b5 ("gcov: clang support")
>
> The above commit got backed out of the -mm tree, due to the issue this
> patch addresses, so not sure it provides the correct context for the
> patch.  Maybe that line in the commit message should be dropped?

Maybe Jessica could drop that if/when applying?

>
> > Suggested-by: Matthew Wilcox <willy@...radead.org>
> > Reported-by: Randy Dunlap <rdunlap@...radead.org>
> > Reported-by: kbuild test robot <lkp@...el.com>
> > Link: https://marc.info/?l=linux-mm&m=155384681109231&w=2
> > Signed-off-by: Tri Vo <trong@...roid.com>
> > ---
> >  include/linux/module.h | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/include/linux/module.h b/include/linux/module.h
> > index 5bf5dcd91009..47190ebb70bf 100644
> > --- a/include/linux/module.h
> > +++ b/include/linux/module.h
> > @@ -709,6 +709,11 @@ static inline bool is_module_text_address(unsigned long addr)
> >         return false;
> >  }
> >
> > +static inline bool within_module(unsigned long addr, const struct module *mod)
> > +{
> > +       return false;
> > +}
> > +
>
> Do folks think that similar stubs for within_module_core and
> within_module_init should be added, while we're here?
>

Otherwise, if the answer to the above is no,
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

-- 
Thanks,
~Nick Desaulniers

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