From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Linux-Next Mailing List <linux-next@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
kasan-dev <kasan-dev@googlegroups.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Alexander Potapenko <glider@google.com>,
Andrey Konovalov <andreyknvl@gmail.com>,
Dmitry Vyukov <dvyukov@google.com>,
Stephen Rothwell <sfr@canb.auug.org.au>
Subject: Re: mm/kasan/init.c:282:20: error: redefinition of 'kasan_populate_early_vm_area_shadow'
Date: Tue, 12 Oct 2021 09:03:38 +0800 [thread overview]
Message-ID: <3796d319-10a9-9721-f300-44a28f1f7507@huawei.com> (raw)
In-Reply-To: <20211011135345.9506437ee2504a81054dc06f@linux-foundation.org>
On 2021/10/12 4:53, Andrew Morton wrote:
> On Mon, 11 Oct 2021 18:12:44 +0530 Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>
>> + Andrew Morton <akpm@linux-foundation.org>
>>
>> On Mon, 11 Oct 2021 at 17:08, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>>>
>>> Regression found on x86_64 gcc-11 built with KASAN enabled.
>>> Following build warnings / errors reported on linux next 20211011.
>>>
>>> metadata:
>>> git_describe: next-20211011
>>> git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
>>> git_short_log: d3134eb5de85 (\"Add linux-next specific files for 20211011\")
>>> target_arch: x86_64
>>> toolchain: gcc-11
>>>
>>> build error :
>>> --------------
>>> mm/kasan/init.c:282:20: error: redefinition of
>>> 'kasan_populate_early_vm_area_shadow'
>>> 282 | void __init __weak kasan_populate_early_vm_area_shadow(void *start,
>>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>> In file included from include/linux/mm.h:34,
>>> from include/linux/memblock.h:13,
>>> from mm/kasan/init.c:9:
>>> include/linux/kasan.h:463:20: note: previous definition of
>>> 'kasan_populate_early_vm_area_shadow' with type 'void(void *, long
>>> unsigned int)'
>>> 463 | static inline void kasan_populate_early_vm_area_shadow(void *start,
>>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>> make[3]: *** [scripts/Makefile.build:288: mm/kasan/init.o] Error 1
>>> make[3]: Target '__build' not remade because of errors.
>>>
>>>
>>> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
>>>
>>> build link:
>>> -----------
>>> https://builds.tuxbuild.com/1zLv2snHfZN8QV01yA9MB8NhUZt/build.log
>>>
>>> build config:
>>> -------------
>>> https://builds.tuxbuild.com/1zLv2snHfZN8QV01yA9MB8NhUZt/config
>>>
>>> # To install tuxmake on your system globally
>>> # sudo pip3 install -U tuxmake
>>> tuxmake --runtime podman --target-arch x86_64 --toolchain gcc-11
>>> --kconfig defconfig --kconfig-add
>>> https://builds.tuxbuild.com/1zLv2snHfZN8QV01yA9MB8NhUZt/config
>
> Presumably "kasan: arm64: fix pcpu_page_first_chunk crash with
> KASAN_VMALLOC". Let's cc Kefeng.
Yes, I send a fix patch, and reply this mail, see
https://lore.kernel.org/linux-mm/5077aa7e-0167-33b6-35f0-0ea7df8f2375@huawei.com/
>
> .
>
prev parent reply other threads:[~2021-10-12 1:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-11 11:38 mm/kasan/init.c:282:20: error: redefinition of 'kasan_populate_early_vm_area_shadow' Naresh Kamboju
2021-10-11 12:32 ` [PATCH] mm: kasan: Fix " Kefeng Wang
2021-10-11 12:22 ` Kefeng Wang
2021-10-11 12:42 ` mm/kasan/init.c:282:20: error: " Naresh Kamboju
2021-10-11 20:53 ` Andrew Morton
2021-10-12 1:03 ` Kefeng Wang [this message]
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