[openeuler:OLK-6.6 2163/2163] drivers/gpu/drm/phytium/phytium_gem.c:169:6: warning: no previous prototype for 'phytium_gem_prime_vunmap'

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

Hi Li,

First bad commit (maybe != root cause):

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   bb46ff9245f25c71ce2d456156bb2fc39c400aad
commit: 792b82446538ed840a6e23b89673ce21564702bd [2163/2163] Fix gic support for Phytium S2500
config: arm64-randconfig-004-20250424 (https://download.01.org/0day-ci/archive/20250424/202504240208.n1driNHi-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250424/202504240208.n1driNHi-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504240208.n1driNHi-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/phytium/phytium_gem.c:22:5: warning: no previous prototype for 'phytium_memory_pool_alloc' [-Wmissing-prototypes]
    int phytium_memory_pool_alloc(struct phytium_display_private *priv, void **pvaddr,
        ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/phytium/phytium_gem.c:37:6: warning: no previous prototype for 'phytium_memory_pool_free' [-Wmissing-prototypes]
    void phytium_memory_pool_free(struct phytium_display_private *priv, void *vaddr, uint64_t size)
         ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/phytium/phytium_gem.c:160:5: warning: no previous prototype for 'phytium_gem_prime_vmap' [-Wmissing-prototypes]
    int phytium_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
        ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/phytium/phytium_gem.c:169:6: warning: no previous prototype for 'phytium_gem_prime_vunmap' [-Wmissing-prototypes]
    void phytium_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
         ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/phytium/phytium_gem.c:181:5: warning: no previous prototype for 'phytium_dma_transfer' [-Wmissing-prototypes]
    int phytium_dma_transfer(struct drm_device *drm_dev, int dev_to_mem, void *addr,
        ^~~~~~~~~~~~~~~~~~~~


vim +/phytium_gem_prime_vunmap +169 drivers/gpu/drm/phytium/phytium_gem.c

b80df10f845813 lishuo 2024-01-31  168  
b80df10f845813 lishuo 2024-01-31 @169  void phytium_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
b80df10f845813 lishuo 2024-01-31  170  {
b80df10f845813 lishuo 2024-01-31  171  

:::::: The code at line 169 was first introduced by commit
:::::: b80df10f845813bb4fc2002b5386ecdfa8be5f6c DRM: Phytium display DRM driver

:::::: TO: lishuo <lishuo@phytium.com.cn>
:::::: CC: lishuo <lishuo@phytium.com.cn>

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