Re: [PATCH] libnvdimm/e820: Fix build error without MEMORY_HOTPLUG

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

Hi YueHaibing,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linux-nvdimm/libnvdimm-for-next]
[also build test ERROR on v5.9-rc2 next-20200826]
[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]

url:    https://github.com/0day-ci/linux/commits/YueHaibing/libnvdimm-e820-Fix-build-error-without-MEMORY_HOTPLUG/20200826-202043
base:   https://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git libnvdimm-for-next
config: x86_64-randconfig-r014-20200826 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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 >>):

>> drivers/nvdimm/e820.c:21:19: error: static declaration of 'phys_to_target_node' follows non-static declaration
      21 | static inline int phys_to_target_node(u64 start)
         |                   ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/nodemask.h:96,
                    from arch/x86/include/asm/numa.h:5,
                    from arch/x86/include/asm/acpi.h:11,
                    from arch/x86/include/asm/fixmap.h:29,
                    from arch/x86/include/asm/apic.h:11,
                    from arch/x86/include/asm/smp.h:13,
                    from include/linux/smp.h:82,
                    from include/linux/percpu.h:7,
                    from include/linux/hrtimer.h:19,
                    from include/linux/sched.h:20,
                    from include/linux/ratelimit.h:6,
                    from include/linux/dev_printk.h:16,
                    from include/linux/device.h:15,
                    from include/linux/platform_device.h:13,
                    from drivers/nvdimm/e820.c:6:
   include/linux/numa.h:31:5: note: previous declaration of 'phys_to_target_node' was here
      31 | int phys_to_target_node(phys_addr_t addr);
         |     ^~~~~~~~~~~~~~~~~~~

# https://github.com/0day-ci/linux/commit/4c003ae129dccea4445a55e9e2c61de5922fbd37
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review YueHaibing/libnvdimm-e820-Fix-build-error-without-MEMORY_HOTPLUG/20200826-202043
git checkout 4c003ae129dccea4445a55e9e2c61de5922fbd37
vim +/phys_to_target_node +21 drivers/nvdimm/e820.c

    19	
    20	#ifndef CONFIG_MEMORY_HOTPLUG
  > 21	static inline int phys_to_target_node(u64 start)
    22	{
    23		return 0;
    24	}
    25	#endif
    26	

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