[freescale-fslc:5.12.x+fslc 4/6] drivers/misc/uboot_bootcount.c:70:50: error: initialization of 'ssize_t (*)(struct device *, struct device_attribute *, char *)' {aka 'long int (*)(struct device *, struct device_attribute *, char *)'} from incompatible pointer type 'int (*)(struct device...

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

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tree:   https://github.com/Freescale/linux-fslc 5.12.x+fslc
head:   533c005dbffa6950950622c514132d7b11c039bf
commit: 78c9cede1e8309fbce3522c4ec751d71e6cbd1d4 [4/6] drivers, misc: add U-Boot bootcount driver
config: s390-allmodconfig (attached as .config)
compiler: s390-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
        # https://github.com/Freescale/linux-fslc/commit/78c9cede1e8309fbce3522c4ec751d71e6cbd1d4
        git remote add freescale-fslc https://github.com/Freescale/linux-fslc
        git fetch --no-tags freescale-fslc 5.12.x+fslc
        git checkout 78c9cede1e8309fbce3522c4ec751d71e6cbd1d4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=s390 

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 >>):

   In file included from include/linux/kobject.h:20,
                    from include/linux/energy_model.h:7,
                    from include/linux/device.h:16,
                    from include/linux/miscdevice.h:7,
                    from drivers/misc/uboot_bootcount.c:17:
>> drivers/misc/uboot_bootcount.c:70:50: error: initialization of 'ssize_t (*)(struct device *, struct device_attribute *, char *)' {aka 'long int (*)(struct device *, struct device_attribute *, char *)'} from incompatible pointer type 'int (*)(struct device *, struct device_attribute *, char *)' [-Werror=incompatible-pointer-types]
      70 | static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
         |                                                  ^~~~~~~~~~~~~~~~~~
   include/linux/sysfs.h:104:10: note: in definition of macro '__ATTR'
     104 |  .show = _show,      \
         |          ^~~~~
   drivers/misc/uboot_bootcount.c:70:8: note: in expansion of macro 'DEVICE_ATTR'
      70 | static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
         |        ^~~~~~~~~~~
   drivers/misc/uboot_bootcount.c:70:50: note: (near initialization for 'dev_attr_bootcount.show')
      70 | static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
         |                                                  ^~~~~~~~~~~~~~~~~~
   include/linux/sysfs.h:104:10: note: in definition of macro '__ATTR'
     104 |  .show = _show,      \
         |          ^~~~~
   drivers/misc/uboot_bootcount.c:70:8: note: in expansion of macro 'DEVICE_ATTR'
      70 | static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
         |        ^~~~~~~~~~~
>> drivers/misc/uboot_bootcount.c:71:3: error: initialization of 'ssize_t (*)(struct device *, struct device_attribute *, const char *, size_t)' {aka 'long int (*)(struct device *, struct device_attribute *, const char *, long unsigned int)'} from incompatible pointer type 'int (*)(struct device *, struct device_attribute *, const char *, size_t)' {aka 'int (*)(struct device *, struct device_attribute *, const char *, long unsigned int)'} [-Werror=incompatible-pointer-types]
      71 |   store_str_bootcount);
         |   ^~~~~~~~~~~~~~~~~~~
   include/linux/sysfs.h:105:11: note: in definition of macro '__ATTR'
     105 |  .store = _store,      \
         |           ^~~~~~
   drivers/misc/uboot_bootcount.c:70:8: note: in expansion of macro 'DEVICE_ATTR'
      70 | static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
         |        ^~~~~~~~~~~
   drivers/misc/uboot_bootcount.c:71:3: note: (near initialization for 'dev_attr_bootcount.store')
      71 |   store_str_bootcount);
         |   ^~~~~~~~~~~~~~~~~~~
   include/linux/sysfs.h:105:11: note: in definition of macro '__ATTR'
     105 |  .store = _store,      \
         |           ^~~~~~
   drivers/misc/uboot_bootcount.c:70:8: note: in expansion of macro 'DEVICE_ATTR'
      70 | static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
         |        ^~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +70 drivers/misc/uboot_bootcount.c

    69	
  > 70	static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
  > 71			store_str_bootcount);
    72	

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

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