From: Kees Cook <keescook@chromium.org>
To: Randy Dunlap <rd.dunlab@gmail.com>
Cc: akpm@linux-foundation.org, broonie@kernel.org, mhocko@suse.cz,
sfr@canb.auug.org.au, linux-next@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, mm-commits@vger.kernel.org,
"open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@vger.kernel.org>
Subject: Re: mmotm 2020-06-20-21-36 uploaded (lkdtm/bugs.c)
Date: Mon, 22 Jun 2020 14:50:08 -0700 [thread overview]
Message-ID: <202006221445.36E03CCBE9@keescook> (raw)
In-Reply-To: <20a39fd4-622d-693c-c8d6-1fbab12af62a@gmail.com>
On Mon, Jun 22, 2020 at 08:37:17AM -0700, Randy Dunlap wrote:
> On 6/20/20 9:37 PM, akpm@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2020-06-20-21-36 has been uploaded to
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for mm-of-the-moment:
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > This is a snapshot of my -mm patch queue. Uploaded at random hopefully
> > more than once a week.
>
> drivers/misc/lkdtm/bugs.c has build errors when building UML for i386
> (allmodconfig or allyesconfig):
>
>
> In file included from ../drivers/misc/lkdtm/bugs.c:17:0:
> ../arch/x86/um/asm/desc.h:7:0: warning: "LDT_empty" redefined
> #define LDT_empty(info) (\
>
> In file included from ../arch/um/include/asm/mmu.h:10:0,
> from ../include/linux/mm_types.h:18,
> from ../include/linux/sched/signal.h:13,
> from ../drivers/misc/lkdtm/bugs.c:11:
> ../arch/x86/um/asm/mm_context.h:65:0: note: this is the location of the previous definition
> #define LDT_empty(info) (_LDT_empty(info))
The LKDTM test landed a while ago:
b09511c253e5 ("lkdtm: Add a DOUBLE_FAULT crash type on x86")
and nothing has touched arch/x86/um/asm/desc.h nor
arch/x86/um/asm/mm_context.h in a while either.
Regardless, it seems arch/x86/um/asm/desc.h is not needed any more?
--
Kees Cook
next prev parent reply other threads:[~2020-06-22 21:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-21 4:37 mmotm 2020-06-20-21-36 uploaded akpm
2020-06-22 15:37 ` mmotm 2020-06-20-21-36 uploaded (lkdtm/bugs.c) Randy Dunlap
2020-06-22 21:50 ` Kees Cook [this message]
2020-06-22 22:00 ` Richard Weinberger
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