linux-kernel - Re: [PATCH v4 6/6] RISC-V: Add hwprobe vDSO function and data

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Date:   Fri, 17 Mar 2023 19:08:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Evan Green <evan@...osinc.com>,
        Palmer Dabbelt <palmer@...osinc.com>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        slewis@...osinc.com, heiko@...ech.de,
        Conor Dooley <conor@...nel.org>, vineetg@...osinc.com,
        Evan Green <evan@...osinc.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Andrew Bresticker <abrestic@...osinc.com>,
        Atish Patra <atishp@...osinc.com>,
        Celeste Liu <coelacanthus@...look.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Guo Ren <guoren@...nel.org>, Jann Horn <jannh@...gle.com>,
        Jisheng Zhang <jszhang@...nel.org>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v4 6/6] RISC-V: Add hwprobe vDSO function and data

Hi Evan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on v6.2]
[cannot apply to shuah-kselftest/next shuah-kselftest/fixes linus/master v6.3-rc2 v6.3-rc1 next-20230317]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Evan-Green/RISC-V-Move-struct-riscv_cpuinfo-to-new-header/20230315-023754
patch link:    https://lore.kernel.org/r/20230314183220.513101-7-evan%40rivosinc.com
patch subject: [PATCH v4 6/6] RISC-V: Add hwprobe vDSO function and data
config: riscv-randconfig-r033-20230312 (https://download.01.org/0day-ci/archive/20230317/202303171804.y0iCB2XM-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/8ded35c1c6a29c13d7509e1e845fe6bb27a4c109
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Evan-Green/RISC-V-Move-struct-riscv_cpuinfo-to-new-header/20230315-023754
        git checkout 8ded35c1c6a29c13d7509e1e845fe6bb27a4c109
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv prepare

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303171804.y0iCB2XM-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: relocation R_RISCV_HI20 cannot be used against symbol '_vdso_data'; recompile with -fPIC
   >>> defined in arch/riscv/kernel/vdso/vdso.lds:101
   >>> referenced by hwprobe.c:35 (arch/riscv/kernel/vdso/hwprobe.c:35)
   >>>               arch/riscv/kernel/vdso/hwprobe.o:(__vdso_riscv_hwprobe)
--
>> ld.lld: error: relocation R_RISCV_LO12_I cannot be used against symbol '_vdso_data'; recompile with -fPIC
   >>> defined in arch/riscv/kernel/vdso/vdso.lds:101
   >>> referenced by hwprobe.c:0 (arch/riscv/kernel/vdso/hwprobe.c:0)
   >>>               arch/riscv/kernel/vdso/hwprobe.o:(__vdso_riscv_hwprobe)
--
>> ld.lld: error: relocation R_RISCV_HI20 cannot be used against symbol '_vdso_data'; recompile with -fPIC
   >>> defined in arch/riscv/kernel/vdso/vdso.lds:101
   >>> referenced by hwprobe.c:0 (arch/riscv/kernel/vdso/hwprobe.c:0)
   >>>               arch/riscv/kernel/vdso/hwprobe.o:(__vdso_riscv_hwprobe)
--
>> ld.lld: error: relocation R_RISCV_LO12_I cannot be used against symbol '_vdso_data'; recompile with -fPIC
   >>> defined in arch/riscv/kernel/vdso/vdso.lds:101
   >>> referenced by hwprobe.c:0 (arch/riscv/kernel/vdso/hwprobe.c:0)
   >>>               arch/riscv/kernel/vdso/hwprobe.o:(__vdso_riscv_hwprobe)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests