linux-kernel - Re: [PATCH v13 3/7] kasan: Add report for async mode

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Message-ID: <CAAeHK+yB4GLCn2Xu4z7FRLNOkVDFr0xXN3-D34BdJbRmWLpSxA@mail.gmail.com>
Date:   Thu, 11 Feb 2021 21:13:51 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>, kbuild-all@...ts.01.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH v13 3/7] kasan: Add report for async mode

On Thu, Feb 11, 2021 at 9:04 PM kernel test robot <lkp@...el.com> wrote:
>
> Hi Vincenzo,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on next-20210211]
> [cannot apply to arm64/for-next/core xlnx/master arm/for-next soc/for-next kvmarm/next linus/master hnaz-linux-mm/master v5.11-rc7 v5.11-rc6 v5.11-rc5 v5.11-rc7]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
>
> url:    https://github.com/0day-ci/linux/commits/Vincenzo-Frascino/arm64-ARMv8-5-A-MTE-Add-async-mode-support/20210212-004947
> base:    671176b0016c80b3943cb5387312c886aba3308d
> config: riscv-randconfig-s031-20210209 (attached as .config)
> compiler: riscv64-linux-gcc (GCC) 9.3.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # apt-get install sparse
>         # sparse version: v0.6.3-215-g0fb77bb6-dirty
>         # https://github.com/0day-ci/linux/commit/df25c9583cd523a49f2407e0aeee55bdec24a14e
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review Vincenzo-Frascino/arm64-ARMv8-5-A-MTE-Add-async-mode-support/20210212-004947
>         git checkout df25c9583cd523a49f2407e0aeee55bdec24a14e
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All errors (new ones prefixed by >>):
>
>    riscv64-linux-ld: mm/kasan/report.o: in function `.L0 ':
>    report.c:(.text+0x480): undefined reference to `kasan_flag_async'
> >> riscv64-linux-ld: report.c:(.text+0x5c4): undefined reference to `kasan_flag_async'

Let's do something like this (untested):

https://github.com/xairy/linux/commit/91354d34b30ceedbc1b6417f1ff253de90618a97