[PATCH 09/11] ppc64/kexec_file: setup backup region for kdump kernel

kernel test robot lkp at intel.com
Sat Jun 27 09:02:54 EDT 2020

Hi Hari,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on powerpc/next]
[also build test WARNING on linux/master linus/master v5.8-rc2 next-20200626]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use  as documented in

url:    https://github.com/0day-ci/linux/commits/Hari-Bathini/ppc64-enable-kdump-support-for-kexec_file_load-syscall/20200627-030901
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allmodconfig (attached as .config)
compiler: powerpc64-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
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 

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

All warnings (new ones prefixed by >>):

>> arch/powerpc/purgatory/purgatory_64.c:26:6: warning: no previous prototype for 'purgatory' [-Wmissing-prototypes]
      26 | void purgatory(void)
         |      ^~~~~~~~~

vim +/purgatory +26 arch/powerpc/purgatory/purgatory_64.c

  > 26	void purgatory(void)

0-DAY CI Kernel Test Service, Intel Corporation
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