[PATCH v2 14/14] powerpc: Implement UACCESS validation on PPC32

[kernel test robot]

Hi Christophe,

kernel test robot noticed the following build warnings:

[auto build test WARNING on powerpc/next]
[also build test WARNING on powerpc/fixes masahiroy-kbuild/for-next masahiroy-kbuild/fixes linus/master v6.4-rc7]
[cannot apply to next-20230622]
[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/Christophe-Leroy/powerpc-kuap-Avoid-unnecessary-reads-of-MD_AP/20230622-185950
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link:    https://lore.kernel.org/r/be282f27ad808418c7475b51a00b4cb035f89a95.1687430631.git.christophe.leroy%40csgroup.eu
patch subject: [PATCH v2 14/14] powerpc: Implement UACCESS validation on PPC32
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20230623/202306230351.SpwvWyz3-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230623/202306230351.SpwvWyz3-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306230351.SpwvWyz3-lkp@intel.com/

All warnings (new ones prefixed by >>):

   arch/powerpc/platforms/powermac/smp.c:416:13: warning: no previous prototype for 'smp_psurge_take_timebase' [-Wmissing-prototypes]
     416 | void __init smp_psurge_take_timebase(void)
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   arch/powerpc/platforms/powermac/smp.c:432:13: warning: no previous prototype for 'smp_psurge_give_timebase' [-Wmissing-prototypes]
     432 | void __init smp_psurge_give_timebase(void)
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/platforms/powermac/smp.o: warning: objtool: .text.pmac_cpu_offline_self: unexpected end of section

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