linux-kernel - Re: [PATCH RFC v2 06/21] kasan: mark kasan_init_tags as _

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Date:   Thu, 29 Oct 2020 21:08:30 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Alexander Potapenko <glider@...gle.com>,
        Marco Elver <elver@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Kostya Serebryany <kcc@...gle.com>,
        Peter Collingbourne <pcc@...gle.com>,
        Serban Constantinescu <serbanc@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Elena Petrova <lenaptr@...gle.com>,
        Branislav Rankov <Branislav.Rankov@....com>,
        Kevin Brodsky <kevin.brodsky@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kasan-dev <kasan-dev@...glegroups.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux-MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RFC v2 06/21] kasan: mark kasan_init_tags as __init

On Wed, Oct 28, 2020 at 11:08 AM Dmitry Vyukov <dvyukov@...gle.com> wrote:
>
> On Thu, Oct 22, 2020 at 3:19 PM 'Andrey Konovalov' via kasan-dev
> <kasan-dev@...glegroups.com> wrote:
> >
> > Similarly to kasan_init() mark kasan_init_tags() as __init.
> >
> > Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
> > Link: https://linux-review.googlesource.com/id/I8792e22f1ca5a703c5e979969147968a99312558
>
> Reviewed-by: Dmitry Vyukov <dvyukov@...gle.com>
>
> init_tags itself is not __init, but that's added in a different patch.
> I've commented on that patch.

Will add that change to this patch, thanks! If we combine the two
patch series, we can move this into the other one later. Thanks!

>
> > ---
> >  include/linux/kasan.h | 2 +-
> >  mm/kasan/hw_tags.c    | 2 +-
> >  mm/kasan/sw_tags.c    | 2 +-
> >  3 files changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/include/linux/kasan.h b/include/linux/kasan.h
> > index 7be9fb9146ac..93d9834b7122 100644
> > --- a/include/linux/kasan.h
> > +++ b/include/linux/kasan.h
> > @@ -185,7 +185,7 @@ static inline void kasan_record_aux_stack(void *ptr) {}
> >
> >  #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS)
> >
> > -void kasan_init_tags(void);
> > +void __init kasan_init_tags(void);
> >
> >  void *kasan_reset_tag(const void *addr);
> >
> > diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
> > index 2a38885014e3..0128062320d5 100644
> > --- a/mm/kasan/hw_tags.c
> > +++ b/mm/kasan/hw_tags.c
> > @@ -15,7 +15,7 @@
> >
> >  #include "kasan.h"
> >
> > -void kasan_init_tags(void)
> > +void __init kasan_init_tags(void)
> >  {
> >         init_tags(KASAN_TAG_MAX);
> >  }
> > diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c
> > index c10863a45775..bf1422282bb5 100644
> > --- a/mm/kasan/sw_tags.c
> > +++ b/mm/kasan/sw_tags.c
> > @@ -35,7 +35,7 @@
> >
> >  static DEFINE_PER_CPU(u32, prng_state);
> >
> > -void kasan_init_tags(void)
> > +void __init kasan_init_tags(void)
> >  {
> >         int cpu;
> >
> > --
> > 2.29.0.rc1.297.gfa9743e501-goog
> >
> > --
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> > To view this discussion on the web visit https://groups.google.com/d/msgid/kasan-dev/155123c77b1a068089421022c4c5b1ccb75defd8.1603372719.git.andreyknvl%40google.com.