Hi Arunpravin,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on 5313fb2c779f74bc5083e9d3738d9b2c2ebe0aa4]

url:    https://github.com/0day-ci/linux/commits/Arunpravin/drm-move-the-buddy-allocator-from-i915-into-common-drm/20220109-222233
base:   5313fb2c779f74bc5083e9d3738d9b2c2ebe0aa4
config: x86_64-randconfig-a001-20220109 (https://download.01.org/0day-ci/archive/20220110/202201101702.AU8z1yRz-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/0day-ci/linux/commit/47666a7da23e2e1df69515f179902dda6fcf5c43
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Arunpravin/drm-move-the-buddy-allocator-from-i915-into-common-drm/20220109-222233
        git checkout 47666a7da23e2e1df69515f179902dda6fcf5c43
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/drm/

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/gpu/drm/drm_buddy.c:517:6: warning: no previous prototype for 'drm_buddy_module_exit' [-Wmissing-prototypes]
     517 | void drm_buddy_module_exit(void)
         |      ^~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/drm_buddy.c:522:12: warning: no previous prototype for 'drm_buddy_module_init' [-Wmissing-prototypes]
     522 | int __init drm_buddy_module_init(void)
         |            ^~~~~~~~~~~~~~~~~~~~~


vim +/drm_buddy_module_exit +517 drivers/gpu/drm/drm_buddy.c

   516	
 > 517	void drm_buddy_module_exit(void)
   518	{
   519		kmem_cache_destroy(slab_blocks);
   520	}
   521	
 > 522	int __init drm_buddy_module_init(void)
   523	{
   524		slab_blocks = KMEM_CACHE(drm_buddy_block, 0);
   525		if (!slab_blocks)
   526			return -ENOMEM;
   527	
   528		return 0;
   529	}
   530	

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