[agd5f:drm-next 269/428] drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c:56:6: warning: no previous prototype for function 'mmhub_v1_7_setup_vm_pt_regs'

[agd5f:drm-next 269/428] drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c:56:6: warning: no previous prototype for function 'mmhub_v1_7_setup_vm_pt_regs'

[kernel test robot]

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tree:   https://gitlab.freedesktop.org/agd5f/linux.git drm-next
head:   e90c92dc6b09574f7fe2e7e5774a3af30e36c632
commit: fd9d8dc1638adf32164cd193773415154f71fa5f [269/428] drm/amdgpu: Clean up mmhub functions for aldebaran
config: x86_64-randconfig-a014-20210308 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project cd9a69289c7825d54450cb6829fef2c8e0f1963a)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
        git fetch --no-tags agd5f drm-next
        git checkout fd9d8dc1638adf32164cd193773415154f71fa5f
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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/amd/amdgpu/mmhub_v1_7.c:56:6: warning: no previous prototype for function 'mmhub_v1_7_setup_vm_pt_regs' [-Wmissing-prototypes]
   void mmhub_v1_7_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
        ^
   drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c:56:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void mmhub_v1_7_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
   ^
   static 
   1 warning generated.


vim +/mmhub_v1_7_setup_vm_pt_regs +56 drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c

f37945d50ff519 Le Ma 2020-09-05  55  
f37945d50ff519 Le Ma 2020-09-05 @56  void mmhub_v1_7_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
f37945d50ff519 Le Ma 2020-09-05  57  				uint64_t page_table_base)
f37945d50ff519 Le Ma 2020-09-05  58  {
f37945d50ff519 Le Ma 2020-09-05  59  	/* two registers distance between regVM_CONTEXT0_* to regVM_CONTEXT1_* */
f37945d50ff519 Le Ma 2020-09-05  60  	int offset = regVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32
f37945d50ff519 Le Ma 2020-09-05  61  			- regVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
f37945d50ff519 Le Ma 2020-09-05  62  
f37945d50ff519 Le Ma 2020-09-05  63  	WREG32_SOC15_OFFSET(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
f37945d50ff519 Le Ma 2020-09-05  64  			offset * vmid, lower_32_bits(page_table_base));
f37945d50ff519 Le Ma 2020-09-05  65  
f37945d50ff519 Le Ma 2020-09-05  66  	WREG32_SOC15_OFFSET(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
f37945d50ff519 Le Ma 2020-09-05  67  			offset * vmid, upper_32_bits(page_table_base));
f37945d50ff519 Le Ma 2020-09-05  68  }
f37945d50ff519 Le Ma 2020-09-05  69  

:::::: The code at line 56 was first introduced by commit
:::::: f37945d50ff5194449ae1a8f53e862c2bcf43464 drm/amdgpu: add mmhub support for aldebaran (v3)

:::::: TO: Le Ma <le.ma@amd.com>
:::::: CC: Alex Deucher <alexander.deucher@amd.com>

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

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