Hi Boris, kernel test robot noticed the following build warnings:
[auto build test WARNING on b2ed01e7ad3de80333e9b962a44024b094bc0b2b] url: https://github.com/intel-lab-lkp/linux/commits/Boris-Brezillon/drm-gem-Make-the-GEM-LRU-lock-part-of-drm_device/20260514-051749 base: b2ed01e7ad3de80333e9b962a44024b094bc0b2b patch link: https://lore.kernel.org/r/20260512-panthor-shrinker-fixes-v3-1-3bf066259471%40collabora.com patch subject: [PATCH v3] drm/gem: Make the GEM LRU lock part of drm_device config: arm-randconfig-002-20260514 (https://download.01.org/0day-ci/archive/20260514/[email protected]/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260514/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/msm/msm_gem.c:827:26: warning: unused variable 'priv' >> [-Wunused-variable] 827 | struct msm_drm_private *priv = obj->dev->dev_private; | ^~~~ 1 warning generated. vim +/priv +827 drivers/gpu/drm/msm/msm_gem.c 4cd33c48ea25ba1 Rob Clark 2016-05-17 823 599089c6af68300 Rob Clark 2020-10-23 824 void msm_gem_purge(struct drm_gem_object *obj) 68209390f116034 Rob Clark 2016-05-17 825 { 68209390f116034 Rob Clark 2016-05-17 826 struct drm_device *dev = obj->dev; 6c7c8fb863f7c31 Rob Clark 2023-03-20 @827 struct msm_drm_private *priv = obj->dev->dev_private; 68209390f116034 Rob Clark 2016-05-17 828 struct msm_gem_object *msm_obj = to_msm_bo(obj); 68209390f116034 Rob Clark 2016-05-17 829 d4d7d3630d703ff Rob Clark 2022-08-02 830 msm_gem_assert_locked(obj); 90643a24a7bfbe9 Rob Clark 2021-04-05 831 GEM_WARN_ON(!is_purgeable(msm_obj)); 68209390f116034 Rob Clark 2016-05-17 832 20d0ae2f8c72e36 Rob Clark 2021-04-05 833 /* Get rid of any iommu mapping(s): */ 0b4339c55ef59ff Rob Clark 2025-06-29 834 put_iova_spaces(obj, NULL, false, "purge"); 0e08270a1f01bce Sushmita Susheelendra 2017-06-13 835 599089c6af68300 Rob Clark 2020-10-23 836 msm_gem_vunmap(obj); 68209390f116034 Rob Clark 2016-05-17 837 81d4d597d4faadb Rob Clark 2021-04-05 838 drm_vma_node_unmap(&obj->vma_node, dev->anon_inode->i_mapping); 81d4d597d4faadb Rob Clark 2021-04-05 839 68209390f116034 Rob Clark 2016-05-17 840 put_pages(obj); 68209390f116034 Rob Clark 2016-05-17 841 c20ad1ee88c074c Boris Brezillon 2026-05-12 842 mutex_lock(&dev->gem_lru_mutex); 6c7c8fb863f7c31 Rob Clark 2023-03-20 843 /* A one-way transition: */ 68209390f116034 Rob Clark 2016-05-17 844 msm_obj->madv = __MSM_MADV_PURGED; c20ad1ee88c074c Boris Brezillon 2026-05-12 845 mutex_unlock(&dev->gem_lru_mutex); 68209390f116034 Rob Clark 2016-05-17 846 68209390f116034 Rob Clark 2016-05-17 847 drm_gem_free_mmap_offset(obj); 68209390f116034 Rob Clark 2016-05-17 848 68209390f116034 Rob Clark 2016-05-17 849 /* Our goal here is to return as much of the memory as 68209390f116034 Rob Clark 2016-05-17 850 * is possible back to the system as we are called from OOM. 68209390f116034 Rob Clark 2016-05-17 851 * To do this we must instruct the shmfs to drop all of its 68209390f116034 Rob Clark 2016-05-17 852 * backing pages, *now*. 68209390f116034 Rob Clark 2016-05-17 853 */ 68209390f116034 Rob Clark 2016-05-17 854 shmem_truncate_range(file_inode(obj->filp), 0, (loff_t)-1); 68209390f116034 Rob Clark 2016-05-17 855 68209390f116034 Rob Clark 2016-05-17 856 invalidate_mapping_pages(file_inode(obj->filp)->i_mapping, 68209390f116034 Rob Clark 2016-05-17 857 0, (loff_t)-1); 68209390f116034 Rob Clark 2016-05-17 858 } 68209390f116034 Rob Clark 2016-05-17 859 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
