[driver-core:driver_attr 10/11] drivers/s390/char/sclp.c:1104:23: error: 'con_pages_show' undeclared here (not in a function)

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver_attr
head:   c50b7be3ac64d5322e8f84f2e78f2f4b518b36ef
commit: 17d260decb4203d5be1b2ebdbf093897553bfeaa [10/11] s390: drivers: convert to use DRIVER_ATTR_RO/WO
config: s390-default_defconfig (attached as .config)
compiler: s390x-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 17d260decb4203d5be1b2ebdbf093897553bfeaa
        # save the attached .config to linux build tree
        make.cross ARCH=s390 

All errors (new ones prefixed by >>):

   In file included from include/linux/kobject.h:21:0,
                    from include/linux/module.h:17,
                    from drivers/s390/char/sclp.c:11:
>> drivers/s390/char/sclp.c:1104:23: error: 'con_pages_show' undeclared here (not in a function)
    static DRIVER_ATTR_RO(con_pages);
                          ^
   include/linux/sysfs.h:116:10: note: in definition of macro '__ATTR_RO'
     .show = _name##_show,      \
             ^~~~~
   drivers/s390/char/sclp.c:1104:8: note: in expansion of macro 'DRIVER_ATTR_RO'
    static DRIVER_ATTR_RO(con_pages);
           ^~~~~~~~~~~~~~
   drivers/s390/char/sclp.c:1099:16: warning: 'console_pages_show' defined but not used [-Wunused-function]
    static ssize_t console_pages_show(struct device_driver *dev, char *buf)
                   ^~~~~~~~~~~~~~~~~~

vim +/con_pages_show +1104 drivers/s390/char/sclp.c

  1098	
  1099	static ssize_t console_pages_show(struct device_driver *dev, char *buf)
  1100	{
  1101		return sprintf(buf, "%i\n", sclp_console_pages);
  1102	}
  1103	
> 1104	static DRIVER_ATTR_RO(con_pages);
  1105	
  1106	static ssize_t con_drop_show(struct device_driver *dev, char *buf)
  1107	{

---
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