Hi Gwan-gyeong, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Gwan-gyeong-Mun/Fixes-integer-overflow-or-integer-truncation-issues-in-page-lookups-ttm-place-configuration-and-scatterlist-creation/20220714-171019 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: i386-randconfig-a004 (https://download.01.org/0day-ci/archive/20220716/202207161058.dmozoqzg-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 2da550140aa98cf6a3e96417c87f1e89e3a26047) 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/2938379499047baf3189503913f438fda6ea92eb git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Gwan-gyeong-Mun/Fixes-integer-overflow-or-integer-truncation-issues-in-page-lookups-ttm-place-configuration-and-scatterlist-creation/20220714-171019 git checkout 2938379499047baf3189503913f438fda6ea92eb # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/i915/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/i915/gem/i915_gem_shmem.c:550:11: warning: result of >> comparison of constant 17592186040320 with expression of type >> 'resource_size_t' (aka 'unsigned int') is always false >> [-Wtautological-constant-out-of-range-compare] if (size > MAX_LFS_FILESIZE) ~~~~ ^ ~~~~~~~~~~~~~~~~ 1 warning generated. vim +550 drivers/gpu/drm/i915/gem/i915_gem_shmem.c 534 535 static int __create_shmem(struct drm_i915_private *i915, 536 struct drm_gem_object *obj, 537 resource_size_t size) 538 { 539 unsigned long flags = VM_NORESERVE; 540 struct file *filp; 541 542 drm_gem_private_object_init(&i915->drm, obj, size); 543 544 /* XXX: The __shmem_file_setup() function returns -EINVAL if size is 545 * greater than MAX_LFS_FILESIZE. 546 * To handle the same error as other code that returns -E2BIG when 547 * the size is too large, we add a code that returns -E2BIG when the 548 * size is larger than the size that can be handled. 549 */ > 550 if (size > MAX_LFS_FILESIZE) 551 return -E2BIG; 552 553 if (i915->mm.gemfs) 554 filp = shmem_file_setup_with_mnt(i915->mm.gemfs, "i915", size, 555 flags); 556 else 557 filp = shmem_file_setup("i915", size, flags); 558 if (IS_ERR(filp)) 559 return PTR_ERR(filp); 560 561 obj->filp = filp; 562 return 0; 563 } 564 -- 0-DAY CI Kernel Test Service https://01.org/lkp
