[arnd-playground:asm-generic-uaccess-6 10/10] arch/xtensa/kernel/xtensa_ksyms.c:47:15: error: '__strncpy_user' undeclared here (not in a function); did you mean '__strnlen_user'?

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git asm-generic-uaccess-6
head:   3b678070bb03678466211f4f13b156fbae62b0db
commit: 3b678070bb03678466211f4f13b156fbae62b0db [10/10] asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbols
config: xtensa-common_defconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 10.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/commit/?id=3b678070bb03678466211f4f13b156fbae62b0db
        git remote add arnd-playground https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git
        git fetch --no-tags arnd-playground asm-generic-uaccess-6
        git checkout 3b678070bb03678466211f4f13b156fbae62b0db
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   In file included from include/linux/linkage.h:7,
                    from include/linux/kernel.h:8,
                    from include/linux/list.h:9,
                    from include/linux/module.h:12,
                    from arch/xtensa/kernel/xtensa_ksyms.c:15:
>> arch/xtensa/kernel/xtensa_ksyms.c:47:15: error: '__strncpy_user' undeclared here (not in a function); did you mean '__strnlen_user'?
      47 | EXPORT_SYMBOL(__strncpy_user);
         |               ^~~~~~~~~~~~~~
   include/linux/export.h:98:16: note: in definition of macro '___EXPORT_SYMBOL'
      98 |  extern typeof(sym) sym;       \
         |                ^~~
   include/linux/export.h:160:34: note: in expansion of macro '__EXPORT_SYMBOL'
     160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
         |                                  ^~~~~~~~~~~~~~~
   include/linux/export.h:163:29: note: in expansion of macro '_EXPORT_SYMBOL'
     163 | #define EXPORT_SYMBOL(sym)  _EXPORT_SYMBOL(sym, "")
         |                             ^~~~~~~~~~~~~~
   arch/xtensa/kernel/xtensa_ksyms.c:47:1: note: in expansion of macro 'EXPORT_SYMBOL'
      47 | EXPORT_SYMBOL(__strncpy_user);
         | ^~~~~~~~~~~~~
   arch/xtensa/kernel/xtensa_ksyms.c:83:6: warning: no previous prototype for '__xtensa_libgcc_window_spill' [-Wmissing-prototypes]
      83 | void __xtensa_libgcc_window_spill(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +47 arch/xtensa/kernel/xtensa_ksyms.c

5a0015d62668e6 Chris Zankel 2005-06-23  35  
5a0015d62668e6 Chris Zankel 2005-06-23  36  
5a0015d62668e6 Chris Zankel 2005-06-23  37  /*
5a0015d62668e6 Chris Zankel 2005-06-23  38   * String functions
5a0015d62668e6 Chris Zankel 2005-06-23  39   */
5a0015d62668e6 Chris Zankel 2005-06-23  40  EXPORT_SYMBOL(memset);
5a0015d62668e6 Chris Zankel 2005-06-23  41  EXPORT_SYMBOL(memcpy);
5a0015d62668e6 Chris Zankel 2005-06-23  42  EXPORT_SYMBOL(memmove);
c633544a615414 Max Filippov 2017-12-03  43  EXPORT_SYMBOL(__memset);
c633544a615414 Max Filippov 2017-12-03  44  EXPORT_SYMBOL(__memcpy);
c633544a615414 Max Filippov 2017-12-03  45  EXPORT_SYMBOL(__memmove);
57358ba9564a05 Max Filippov 2017-12-17  46  #ifndef CONFIG_GENERIC_STRNCPY_FROM_USER
d3738f407c8ced Max Filippov 2012-09-17 @47  EXPORT_SYMBOL(__strncpy_user);
57358ba9564a05 Max Filippov 2017-12-17  48  #endif
d3738f407c8ced Max Filippov 2012-09-17  49  EXPORT_SYMBOL(clear_page);
d3738f407c8ced Max Filippov 2012-09-17  50  EXPORT_SYMBOL(copy_page);
5a0015d62668e6 Chris Zankel 2005-06-23  51  

:::::: The code at line 47 was first introduced by commit
:::::: d3738f407c8ced4fd17dccf6cce729023c735c73 xtensa: add missing symbol exports

:::::: TO: Max Filippov <jcmvbkbc@gmail.com>
:::::: CC: Chris Zankel <chris@zankel.net>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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