linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Marco Elver <elver@google.com>
To: Heiko Carstens <hca@linux.ibm.com>
Cc: Alexander Potapenko <glider@google.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	 Vasily Gorbik <gor@linux.ibm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	kasan-dev@googlegroups.com,  linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: Re: [PATCH 2/4] kfence: add function to mask address bits
Date: Thu, 29 Jul 2021 14:27:30 +0200	[thread overview]
Message-ID: <CANpmjNPWj2vjNd2V-Wqgh1+AvmKQEbg=Qh43DQ_5P2vNv7+JDw@mail.gmail.com> (raw)
In-Reply-To: <YQKeNbU4HJhFP8kn@osiris>

On Thu, 29 Jul 2021 at 14:25, Heiko Carstens <hca@linux.ibm.com> wrote:
> On Thu, Jul 29, 2021 at 09:48:58AM +0200, Marco Elver wrote:
> > On Wed, Jul 28, 2021 at 09:02PM +0200, Heiko Carstens wrote:
> > > From: Sven Schnelle <svens@linux.ibm.com>
> > >
> > > s390 only reports the page address during a translation fault.
> > > To make the kfence unit tests pass, add a function that might
> > > be implemented by architectures to mask out address bits.
> > >
> > > Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
> > > Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
> >
> > I noticed this breaks on x86 if CONFIG_KFENCE_KUNIT_TEST=m, because x86
> > conditionally declares some asm functions if !MODULE.
> >
> > I think the below is the simplest to fix, and if you agree, please carry
> > it as a patch in this series before this patch.
>
> Will do.
>
> > With the below, you can add to this patch:
> >
> >       Reviewed-by: Marco Elver <elver@google.com>
>
> Done - Thank you! I silently assume this means also you have no
> objections if we carry this via the s390 tree for upstreaming.

I think that's reasonable. I'm not aware of any conflicts, nor am I
expecting any for the upcoming cycle.

Thanks,
-- Marco


  reply	other threads:[~2021-07-29 12:27 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-28 19:02 [PATCH 0/4] s390: add kfence support Heiko Carstens
2021-07-28 19:02 ` [PATCH 1/4] s390/mm: implement set_memory_4k() Heiko Carstens
2021-07-28 19:02 ` [PATCH 2/4] kfence: add function to mask address bits Heiko Carstens
2021-07-28 19:28   ` Christian Borntraeger
2021-07-29  7:48   ` Marco Elver
2021-07-29 12:25     ` Heiko Carstens
2021-07-29 12:27       ` Marco Elver [this message]
2021-07-29 12:43   ` Alexander Potapenko
2021-07-29 13:47     ` Sven Schnelle
2021-07-29 13:59       ` Alexander Potapenko
2021-07-28 19:02 ` [PATCH 3/4] s390: add support for KFENCE Heiko Carstens
2021-07-28 19:02 ` [PATCH 4/4] s390: add kfence region to pagetable dumper Heiko Carstens

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CANpmjNPWj2vjNd2V-Wqgh1+AvmKQEbg=Qh43DQ_5P2vNv7+JDw@mail.gmail.com' \
    --to=elver@google.com \
    --cc=borntraeger@de.ibm.com \
    --cc=glider@google.com \
    --cc=gor@linux.ibm.com \
    --cc=hca@linux.ibm.com \
    --cc=kasan-dev@googlegroups.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=svens@linux.ibm.com \
    --subject='Re: [PATCH 2/4] kfence: add function to mask address bits' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).