[radeon-alex:amd-staging-drm-next 534/571] drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:904:6: warning: old-style function definition

[kernel test robot]

tree:   git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next
head:   a29bd65d3af75aa50f10e35af7bb77218943622f
commit: 16cf2b67735cdd2f97aade032f8d720c8b089523 [534/571] drm/amdgpu: add s0i3 capacity check for s0i3 routine
config: ia64-allmodconfig (attached as .config)
compiler: ia64-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
        git remote add radeon-alex git://people.freedesktop.org/~agd5f/linux.git
        git fetch --no-tags radeon-alex amd-staging-drm-next
        git checkout 16cf2b67735cdd2f97aade032f8d720c8b089523
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 

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

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: In function 'amdgpu_acpi_is_s0ix_supported':
>> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:904:6: warning: old-style function definition [-Wold-style-definition]
     904 | bool amdgpu_acpi_is_s0ix_supported()
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +904 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

   898	
   899	/**
   900	 * amdgpu_acpi_is_s0ix_supported
   901	 *
   902	 * returns true if supported, false if not.
   903	 */
 > 904	bool amdgpu_acpi_is_s0ix_supported()

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