Message-ID: <bf881eaf-1fe8-c3bf-52bb-5a021b279bad@huawei.com>
Date:   Thu, 25 Nov 2021 16:04:33 +0800
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101
 Thunderbird/91.2.0
Subject: Re: [next] kasan: shadow.c:528:33: error: 'VM_DELAY_KMEMLEAK'
 undeclared
Content-Language: en-US
To:     Stephen Rothwell <sfr@canb.auug.org.au>,
        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>,
        Andrew Morton <akpm@linux-foundation.org>,
        Yongqiang Liu <liuyongqiang13@huawei.com>,
        Andrey Ryabinin <ryabinin.a.a@gmail.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Heiko Carstens <hca@linux.ibm.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Christian Borntraeger <borntraeger@linux.ibm.com>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Alexander Potapenko <glider@google.com>
References: <CA+G9fYuLv7491Q2AHcaUAQ2AQeFBQgx8w0DzK95Qf6Fh9gGFfQ@mail.gmail.com>
 <20211125185313.77e20bc5@canb.auug.org.au>
From:   Kefeng Wang <wangkefeng.wang@huawei.com>
In-Reply-To: <20211125185313.77e20bc5@canb.auug.org.au>
Content-Type: text/plain; charset="UTF-8"; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk


On 2021/11/25 15:53, Stephen Rothwell wrote:
> Hi Naresh,
>
> On Thu, 25 Nov 2021 12:43:41 +0530 Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>> [ Please ignore this email if it is already reported ]
>>
>> While building Linux next 20211125 x86 with CONFIG_KASAN=y gcc-11
>> following warnings / errors noticed.
>>
>> mm/kasan/shadow.c: In function 'kasan_module_alloc':
>> mm/kasan/shadow.c:528:33: error: 'VM_DELAY_KMEMLEAK' undeclared (first
>> use in this function); did you mean 'VM_DEFER_KMEMLEAK'?
>>    528 |                 if (vm->flags & VM_DELAY_KMEMLEAK)
>>        |                                 ^~~~~~~~~~~~~~~~~
>>        |                                 VM_DEFER_KMEMLEAK
>> mm/kasan/shadow.c:528:33: note: each undeclared identifier is reported
>> only once for each function it appears in
>> make[3]: *** [scripts/Makefile.build:288: mm/kasan/shadow.o] Error 1
>>
>> Build config:
>> https://builds.tuxbuild.com/21OjEyx87iCX9bqOwJrZdl1wFFj/config
>>
>>
>> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
>>
>> meta data:
>> -----------
>>      git describe: next-20211125
>>      git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
>>      git_sha: f81e94e91878bded599cc60f2881cfd50991aeb9
>>      git_short_log: f81e94e91878 (\"Add linux-next specific files for 20211125\")
>>      target_arch: x86
>>      toolchain: gcc-11
>>
>> steps to reproduce:
>> tuxmake --runtime podman --target-arch x86_64 --toolchain gcc-11
>> --kconfig defconfig \
>> --kconfig-add https://builds.tuxbuild.com/21OjEyx87iCX9bqOwJrZdl1wFFj/config
>>
>> https://builds.tuxbuild.com/21OjEyx87iCX9bqOwJrZdl1wFFj/tuxmake_reproducer.sh
>>
>> --
>> Linaro LKFT
>> https://lkft.linaro.org
> Caused by commit
>
>    f61bc9ffcab1 ("mm: defer kmemleak object creation of module_alloc()")
>
> from the akpm-current tree.  The define is VM_DEFER_KMEMLEAK :-(
Resend a new one, sorry for missing macro change when v3 version use new 
name.
>