Re: [PATCH] module: add stub for within_module

From: Nick Desaulniers
Date: Mon Apr 08 2019 - 14:11:32 EST


On Mon, Apr 8, 2019 at 11:08 AM Nick Desaulniers
<ndesaulniers@xxxxxxxxxx> wrote:
>
> On Sat, Apr 6, 2019 at 7:26 PM Tri Vo <trong@xxxxxxxxxxx> 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@xxxxxxxxxxxxx>
> > Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> > Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> > Link: https://marc.info/?l=linux-mm&m=155384681109231&w=2
> > Signed-off-by: Tri Vo <trong@xxxxxxxxxxx>
> > ---
> > 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@xxxxxxxxxx>

--
Thanks,
~Nick Desaulniers