[intel-lts:5.4/yocto 13550/20394] include/linux/stddef.h:8:14: warning: initialization of 'long unsigned int' from 'void *' makes integer from pointer without a cast

[intel-lts:5.4/yocto 13550/20394] include/linux/stddef.h:8:14: warning: initialization of 'long unsigned int' from 'void *' makes integer from pointer without a cast

[kernel test robot]

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Hi Raymond,

FYI, the error/warning still remains.

tree:   https://github.com/intel/linux-intel-lts.git 5.4/yocto
head:   36f93ff941f127f4137ab369aecbdd995fb58c66
commit: e3b73159b8cfd2c940dd6e55702754c16f1f3923 [13550/20394] mfd: intel-ehl-gpio: Introduce MFD framework to PSE GPIO/TGPIO
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220122/202201222346.ttrLsdym-lkp(a)intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel/linux-intel-lts/commit/e3b73159b8cfd2c940dd6e55702754c16f1f3923
        git remote add intel-lts https://github.com/intel/linux-intel-lts.git
        git fetch --no-tags intel-lts 5.4/yocto
        git checkout e3b73159b8cfd2c940dd6e55702754c16f1f3923
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/mfd/ drivers/ptp/

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

All warnings (new ones prefixed by >>):

   drivers/mfd/intel-ehl-gpio.c: In function 'intel_ehl_pse_gpio_mfd_suspend':
   drivers/mfd/intel-ehl-gpio.c:135:6: warning: unused variable 'i' [-Wunused-variable]
     135 |  int i = 0;
         |      ^
   drivers/mfd/intel-ehl-gpio.c: In function 'intel_ehl_pse_gpio_mfd_runtime_suspend':
   drivers/mfd/intel-ehl-gpio.c:184:6: warning: unused variable 'i' [-Wunused-variable]
     184 |  int i = 0;
         |      ^
   In file included from include/uapi/linux/posix_types.h:5,
                    from include/uapi/linux/types.h:14,
                    from include/linux/types.h:6,
                    from include/linux/limits.h:6,
                    from include/linux/kernel.h:7,
                    from drivers/mfd/intel-ehl-gpio.c:14:
   drivers/mfd/intel-ehl-gpio.c: At top level:
>> include/linux/stddef.h:8:14: warning: initialization of 'long unsigned int' from 'void *' makes integer from pointer without a cast [-Wint-conversion]
       8 | #define NULL ((void *)0)
         |              ^
   drivers/mfd/intel-ehl-gpio.c:236:32: note: in expansion of macro 'NULL'
     236 |  { PCI_VDEVICE(INTEL, 0x4b88), NULL},
         |                                ^~~~
   include/linux/stddef.h:8:14: note: (near initialization for 'intel_ehl_pse_gpio_mfd_ids[0].driver_data')
       8 | #define NULL ((void *)0)
         |              ^
   drivers/mfd/intel-ehl-gpio.c:236:32: note: in expansion of macro 'NULL'
     236 |  { PCI_VDEVICE(INTEL, 0x4b88), NULL},
         |                                ^~~~
>> include/linux/stddef.h:8:14: warning: initialization of 'long unsigned int' from 'void *' makes integer from pointer without a cast [-Wint-conversion]
       8 | #define NULL ((void *)0)
         |              ^
   drivers/mfd/intel-ehl-gpio.c:237:32: note: in expansion of macro 'NULL'
     237 |  { PCI_VDEVICE(INTEL, 0x4b89), NULL},
         |                                ^~~~
   include/linux/stddef.h:8:14: note: (near initialization for 'intel_ehl_pse_gpio_mfd_ids[1].driver_data')
       8 | #define NULL ((void *)0)
         |              ^
   drivers/mfd/intel-ehl-gpio.c:237:32: note: in expansion of macro 'NULL'
     237 |  { PCI_VDEVICE(INTEL, 0x4b89), NULL},
         |                                ^~~~


vim +8 include/linux/stddef.h

^1da177e4c3f41 Linus Torvalds   2005-04-16  6  
^1da177e4c3f41 Linus Torvalds   2005-04-16  7  #undef NULL
^1da177e4c3f41 Linus Torvalds   2005-04-16 @8  #define NULL ((void *)0)
6e218287432472 Richard Knutsson 2006-09-30  9  

:::::: The code at line 8 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

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