[PATCH v3 2/3] riscv: optimized memmove

kernel test robot lkp at intel.com
Tue Jun 29 21:40:44 PDT 2021

Hi Matteo,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on linus/master v5.13 next-20210629]
[cannot apply to atish-riscv-linux/topo_v3]
[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

url:    https://github.com/0day-ci/linux/commits/Matteo-Croce/riscv-optimized-mem-functions/20210617-232934
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git dd860052c99b1e088352bdd4fb7aef46f8d2ef47
config: riscv-allyesconfig (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
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
        # https://github.com/0day-ci/linux/commit/211a65b2ee262f10eec0dfc17896aab1d2f0aea2
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Matteo-Croce/riscv-optimized-mem-functions/20210617-232934
        git checkout 211a65b2ee262f10eec0dfc17896aab1d2f0aea2
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

   arch/riscv/lib/string.c: In function '__memmove':
>> arch/riscv/lib/string.c:90:7: error: inlining failed in call to always_inline 'memcpy': function body can be overwritten at link time
      90 | void *memcpy(void *dest, const void *src, size_t count) __weak __alias(__memcpy);
         |       ^~~~~~
   arch/riscv/lib/string.c:100:10: note: called from here
     100 |   return memcpy(dest, src, count);
         |          ^~~~~~~~~~~~~~~~~~~~~~~~

vim +/memcpy +90 arch/riscv/lib/string.c

c35a3474b67826 Matteo Croce 2021-06-17  89  
c35a3474b67826 Matteo Croce 2021-06-17 @90  void *memcpy(void *dest, const void *src, size_t count) __weak __alias(__memcpy);
c35a3474b67826 Matteo Croce 2021-06-17  91  EXPORT_SYMBOL(memcpy);
211a65b2ee262f Matteo Croce 2021-06-17  92  

0-DAY CI Kernel Test Service, Intel Corporation
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