Hi Dmitry, I love your patch! Perhaps something to improve:
[auto build test WARNING on drm-misc/drm-misc-next] [cannot apply to drm/drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.2 next-20230227] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Osipenko/drm-shmem-helper-Factor-out-pages-alloc-release-from-drm_gem_shmem_get-put_pages/20230227-140619 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230227060219.904986-6-dmitry.osipenko%40collabora.com patch subject: [PATCH v11 05/10] drm/shmem-helper: Add memory shrinker config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20230227/[email protected]/config) compiler: s390-linux-gcc (GCC) 12.1.0 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 # https://github.com/intel-lab-lkp/linux/commit/c4d106484ddbebccf4219dacbc2a9975909f4c2a git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Dmitry-Osipenko/drm-shmem-helper-Factor-out-pages-alloc-release-from-drm_gem_shmem_get-put_pages/20230227-140619 git checkout c4d106484ddbebccf4219dacbc2a9975909f4c2a # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/gpu/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <[email protected]> | Link: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/drm_gem_shmem_helper.c:832:18: warning: no previous >> prototype for 'drm_gem_shmem_get_pages_sgt_locked' [-Wmissing-prototypes] 832 | struct sg_table *drm_gem_shmem_get_pages_sgt_locked(struct drm_gem_shmem_object *shmem) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/drm_gem_shmem_helper.c: In function 'drm_gem_shmem_shrinker_scan_objects': drivers/gpu/drm/drm_gem_shmem_helper.c:1015:47: error: passing argument 3 of 'drm_gem_lru_scan' from incompatible pointer type [-Werror=incompatible-pointer-types] 1015 | nr_to_scan, &remaining, | ^~~~~~~~~~ | | | long unsigned int * In file included from include/drm/drm_gem_shmem_helper.h:12, from drivers/gpu/drm/drm_gem_shmem_helper.c:22: include/drm/drm_gem.h:490:39: note: expected 'bool (*)(struct drm_gem_object *)' {aka '_Bool (*)(struct drm_gem_object *)'} but argument is of type 'long unsigned int *' 490 | bool (*shrink)(struct drm_gem_object *obj)); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/drm_gem_shmem_helper.c:1014:18: error: too many arguments to function 'drm_gem_lru_scan' 1014 | freed += drm_gem_lru_scan(&shmem_shrinker->lru_evictable, | ^~~~~~~~~~~~~~~~ include/drm/drm_gem.h:489:15: note: declared here 489 | unsigned long drm_gem_lru_scan(struct drm_gem_lru *lru, unsigned nr_to_scan, | ^~~~~~~~~~~~~~~~ drivers/gpu/drm/drm_gem_shmem_helper.c:1021:63: error: passing argument 3 of 'drm_gem_lru_scan' from incompatible pointer type [-Werror=incompatible-pointer-types] 1021 | nr_to_scan - freed, &remaining, | ^~~~~~~~~~ | | | long unsigned int * include/drm/drm_gem.h:490:39: note: expected 'bool (*)(struct drm_gem_object *)' {aka '_Bool (*)(struct drm_gem_object *)'} but argument is of type 'long unsigned int *' 490 | bool (*shrink)(struct drm_gem_object *obj)); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/drm_gem_shmem_helper.c:1020:26: error: too many arguments to function 'drm_gem_lru_scan' 1020 | freed += drm_gem_lru_scan(&shmem_shrinker->lru_evictable, | ^~~~~~~~~~~~~~~~ include/drm/drm_gem.h:489:15: note: declared here 489 | unsigned long drm_gem_lru_scan(struct drm_gem_lru *lru, unsigned nr_to_scan, | ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/drm_gem_shmem_get_pages_sgt_locked +832 drivers/gpu/drm/drm_gem_shmem_helper.c 831 > 832 struct sg_table *drm_gem_shmem_get_pages_sgt_locked(struct > drm_gem_shmem_object *shmem) 833 { 834 struct drm_gem_object *obj = &shmem->base; 835 int ret; 836 struct sg_table *sgt; 837 838 if (shmem->sgt) 839 return shmem->sgt; 840 841 drm_WARN_ON(obj->dev, obj->import_attach); 842 843 ret = drm_gem_shmem_get_pages(shmem); 844 if (ret) 845 return ERR_PTR(ret); 846 847 sgt = drm_gem_shmem_get_sg_table(shmem); 848 if (IS_ERR(sgt)) { 849 ret = PTR_ERR(sgt); 850 goto err_put_pages; 851 } 852 /* Map the pages for use by the h/w. */ 853 ret = dma_map_sgtable(obj->dev->dev, sgt, DMA_BIDIRECTIONAL, 0); 854 if (ret) 855 goto err_free_sgt; 856 857 shmem->sgt = sgt; 858 859 drm_gem_shmem_update_pages_state(shmem); 860 861 return sgt; 862 863 err_free_sgt: 864 sg_free_table(sgt); 865 kfree(sgt); 866 err_put_pages: 867 drm_gem_shmem_put_pages(shmem); 868 return ERR_PTR(ret); 869 } 870 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
