[kbuild-all] Re: [agd5f:drm-next 51/92] drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c:1335:6: warning: no previous prototype for function 'amdgpu_amdkfd_gpuvm_unpin_bo'

[AMD Official Use Only] Felix, Could you advise if I should submit a patch to fix the warning. The api under question (amdgpu_amdkfd_gpuvm_unpin_bo) MUST be non-static in DKMS branch. However it could be specified as static on drm-next. What is the policy under such situations. Let me know. Regards, Ramesh -----Original Message----- From: kernel test robot <lkp(a)intel.com&gt; Sent: Thursday, November 18, 2021 2:00 PM To: Errabolu, Ramesh <Ramesh.Errabolu(a)amd.com&gt; Cc: llvm(a)lists.linux.dev; kbuild-all(a)lists.01.org; linux-kernel(a)vger.kernel.org; Deucher, Alexander <Alexander.Deucher(a)amd.com&gt;; Kuehling, Felix <Felix.Kuehling(a)amd.com&gt; Subject: [agd5f:drm-next 51/92] drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c:1335:6: warning: no previous prototype for function 'amdgpu_amdkfd_gpuvm_unpin_bo' [CAUTION: External Email] tree: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.... drm-next head: eaae0714f4a82df81a60c6aae74c568e8974a716 commit: f140fc51a32ef8637b522a880b8f9f14683ce8df [51/92] drm/amdgpu: Pin MMIO/DOORBELL BO's in GTT domain config: x86_64-randconfig-r001-20211118 (attached as .config) reproduce (this is a W=1 build): wget https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fraw.git... -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add agd5f https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.... git fetch --no-tags agd5f drm-next git checkout f140fc51a32ef8637b522a880b8f9f14683ce8df # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): void amdgpu_amdkfd_gpuvm_unpin_bo(struct amdgpu_bo *bo) ^ drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c:1335:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void amdgpu_amdkfd_gpuvm_unpin_bo(struct amdgpu_bo *bo) ^ static 1 warning generated. vim +/amdgpu_amdkfd_gpuvm_unpin_bo +1335 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c 1326 1327 /** 1328 * amdgpu_amdkfd_gpuvm_unpin_bo() - Unpins BO using following criteria 1329 * @bo: Handle of buffer object being unpinned 1330 * 1331 * - Is a illegal request for USERPTR BOs and is ignored 1332 * - All other BO types (GTT, VRAM, MMIO and DOORBELL) will have their 1333 * PIN count decremented. Calls to UNPIN must balance calls to PIN 1334 */ 1336 { 1337 int ret = 0; 1338 1339 ret = amdgpu_bo_reserve(bo, false); 1340 if (unlikely(ret)) 1341 return; 1342 1343 amdgpu_bo_unpin(bo); 1344 amdgpu_bo_unreserve(bo); 1345 } 1346 --- 0-DAY CI Kernel Test Service, Intel Corporation https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.0...