[linuxppc:next-test 6/37] include/linux/sysfs.h:515:12: error: 'compat_only_sysfs_link_entry_to_kobj' defined but not used

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

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tree:   https://github.com/linuxppc/linux next-test
head:   36468c325e3aeb621c7565f8a8313a2eaafeda08
commit: d86bf077e526b577d167870a9ed7336309573fe9 [6/37] sysfs: Wrap __compat_only_sysfs_link_entry_to_kobj function to change the symlink name
config: sh-allnoconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout d86bf077e526b577d167870a9ed7336309573fe9
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=sh 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/kobject.h:20:0,
                    from include/linux/module.h:20,
                    from arch/sh/kernel/io.c:8:
>> include/linux/sysfs.h:515:12: error: 'compat_only_sysfs_link_entry_to_kobj' defined but not used [-Werror=unused-function]
    static int compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj,
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +/compat_only_sysfs_link_entry_to_kobj +515 include/linux/sysfs.h

   514	
 > 515	static int compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj,
   516							struct kobject *target_kobj,
   517							const char *target_name,
   518							const char *symlink_name)
   519	{
   520		return 0;
   521	}
   522	

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

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