[PATCH v2] powerpc/32: Add VDSO version of getcpu

[kbuild test robot]

Hi Christophe,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc6 next-20190830]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Christophe-Leroy/powerpc-32-Add-VDSO-version-of-getcpu/20190819-034351
config: powerpc-sequoia_defconfig (attached as .config)
compiler: powerpc-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=powerpc 

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

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/kernel/head_booke.h:7:0,
                    from arch/powerpc/kernel/asm-offsets.c:61:
>> arch/powerpc/include/asm/asm-offsets.h:1:10: fatal error: generated/asm-offsets.h: No such file or directory
    #include <generated/asm-offsets.h>
             ^~~~~~~~~~~~~~~~~~~~~~~~~
   compilation terminated.
   make[2]: *** [arch/powerpc/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2
   20 real  7 user  6 sys  67.53% cpu 	make prepare

vim +1 arch/powerpc/include/asm/asm-offsets.h

559df2e0210352 Sam Ravnborg 2009-04-19 @1  #include <generated/asm-offsets.h>

:::::: The code at line 1 was first introduced by commit
:::::: 559df2e0210352f83926d178c40c51142292a18c kbuild: move asm-offsets.h to include/generated

:::::: TO: Sam Ravnborg <sam at ravnborg.org>
:::::: CC: Michal Marek <mmarek at suse.cz>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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