Messages in this thread | | | Date | Fri, 5 Nov 2021 12:32:39 +0800 | From | kernel test robot <> | Subject | drivers/gpu/drm/i915/gem/i915_gem_object.h:43:6: error: shift count >= width of type |
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tree: https://github.com/0day-ci/linux/commits/UPDATE-20211105-015602/Kieran-Bingham/arm64-dts-renesas-r8a779a0-falcon-cpu-Add-SW46-switch-support/20211025-210557 head: ee2f237110e65ac76c12b958ba928a3f18940b8a commit: ee2f237110e65ac76c12b958ba928a3f18940b8a Input: add 'safe' user switch codes date: 11 hours ago config: x86_64-randconfig-a001-20211105 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 847a6807332b13f43704327c2d30103ec0347c77) 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/0day-ci/linux/commit/ee2f237110e65ac76c12b958ba928a3f18940b8a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20211105-015602/Kieran-Bingham/arm64-dts-renesas-r8a779a0-falcon-cpu-Add-SW46-switch-support/20211025-210557 git checkout ee2f237110e65ac76c12b958ba928a3f18940b8a # 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@intel.com>
All errors (new ones prefixed by >>):
In file included from <built-in>:4: In file included from drivers/gpu/drm/i915/display/intel_dsi.h:30: In file included from drivers/gpu/drm/i915/display/intel_display_types.h:45: In file included from include/media/cec-notifier.h:13: In file included from include/media/cec.h:19: In file included from include/media/rc-core.h:16: In file included from include/media/rc-map.h:11: include/linux/input.h:256:2: error: "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match" #error "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match" ^ In file included from <built-in>:4: In file included from drivers/gpu/drm/i915/display/intel_dsi.h:30: In file included from drivers/gpu/drm/i915/display/intel_display_types.h:47: In file included from drivers/gpu/drm/i915/i915_drv.h:84: In file included from drivers/gpu/drm/i915/gt/intel_engine.h:17: In file included from drivers/gpu/drm/i915/gt/intel_gt_types.h:18: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc.h:9: In file included from drivers/gpu/drm/i915/gt/uc/intel_guc.h:21: In file included from drivers/gpu/drm/i915/i915_vma.h:34: >> drivers/gpu/drm/i915/gem/i915_gem_object.h:43:6: error: shift count >= width of type [-Werror,-Wshift-count-overflow] if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:125:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ 2 errors generated. -- In file included from drivers/gpu/drm/i915/display/intel_fb.c:9: In file included from drivers/gpu/drm/i915/display/intel_display_types.h:45: In file included from include/media/cec-notifier.h:13: In file included from include/media/cec.h:19: In file included from include/media/rc-core.h:16: In file included from include/media/rc-map.h:11: include/linux/input.h:256:2: error: "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match" #error "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match" ^ In file included from drivers/gpu/drm/i915/display/intel_fb.c:9: In file included from drivers/gpu/drm/i915/display/intel_display_types.h:47: In file included from drivers/gpu/drm/i915/i915_drv.h:84: In file included from drivers/gpu/drm/i915/gt/intel_engine.h:17: In file included from drivers/gpu/drm/i915/gt/intel_gt_types.h:18: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc.h:9: In file included from drivers/gpu/drm/i915/gt/uc/intel_guc.h:21: In file included from drivers/gpu/drm/i915/i915_vma.h:34: >> drivers/gpu/drm/i915/gem/i915_gem_object.h:43:6: error: shift count >= width of type [-Werror,-Wshift-count-overflow] if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:125:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ >> drivers/gpu/drm/i915/display/intel_fb.c:660:2: error: shift count >= width of type [-Werror,-Wshift-count-overflow] assign_chk_ovf(i915, remap_info->offset, obj_offset); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_fb.c:642:28: note: expanded from macro 'assign_chk_ovf' drm_WARN_ON(&(i915)->drm, overflows_type(val, var)); \ ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:125:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ include/drm/drm_print.h:563:19: note: expanded from macro 'drm_WARN_ON' drm_WARN((drm), (x), "%s", \ ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_print.h:553:7: note: expanded from macro 'drm_WARN' WARN(condition, "%s %s: " format, \ ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:130:25: note: expanded from macro 'WARN' int __ret_warn_on = !!(condition); \ ^~~~~~~~~ 3 errors generated.
vim +43 drivers/gpu/drm/i915/gem/i915_gem_object.h
b6e913e19c54ed Thomas Hellström 2021-06-29 22 ae2fb480f32f65 Matthew Auld 2021-01-22 23 /* ae2fb480f32f65 Matthew Auld 2021-01-22 24 * XXX: There is a prevalence of the assumption that we fit the ae2fb480f32f65 Matthew Auld 2021-01-22 25 * object's page count inside a 32bit _signed_ variable. Let's document ae2fb480f32f65 Matthew Auld 2021-01-22 26 * this and catch if we ever need to fix it. In the meantime, if you do ae2fb480f32f65 Matthew Auld 2021-01-22 27 * spot such a local variable, please consider fixing! ae2fb480f32f65 Matthew Auld 2021-01-22 28 * ae2fb480f32f65 Matthew Auld 2021-01-22 29 * Aside from our own locals (for which we have no excuse!): ae2fb480f32f65 Matthew Auld 2021-01-22 30 * - sg_table embeds unsigned int for num_pages ae2fb480f32f65 Matthew Auld 2021-01-22 31 * - get_user_pages*() mixed ints with longs ae2fb480f32f65 Matthew Auld 2021-01-22 32 */ ae2fb480f32f65 Matthew Auld 2021-01-22 33 #define GEM_CHECK_SIZE_OVERFLOW(sz) \ ae2fb480f32f65 Matthew Auld 2021-01-22 34 GEM_WARN_ON((sz) >> PAGE_SHIFT > INT_MAX) ae2fb480f32f65 Matthew Auld 2021-01-22 35 ae2fb480f32f65 Matthew Auld 2021-01-22 36 static inline bool i915_gem_object_size_2big(u64 size) ae2fb480f32f65 Matthew Auld 2021-01-22 37 { ae2fb480f32f65 Matthew Auld 2021-01-22 38 struct drm_i915_gem_object *obj; ae2fb480f32f65 Matthew Auld 2021-01-22 39 ae2fb480f32f65 Matthew Auld 2021-01-22 40 if (GEM_CHECK_SIZE_OVERFLOW(size)) ae2fb480f32f65 Matthew Auld 2021-01-22 41 return true; ae2fb480f32f65 Matthew Auld 2021-01-22 42 ae2fb480f32f65 Matthew Auld 2021-01-22 @43 if (overflows_type(size, obj->base.size)) ae2fb480f32f65 Matthew Auld 2021-01-22 44 return true; ae2fb480f32f65 Matthew Auld 2021-01-22 45 ae2fb480f32f65 Matthew Auld 2021-01-22 46 return false; ae2fb480f32f65 Matthew Auld 2021-01-22 47 } ae2fb480f32f65 Matthew Auld 2021-01-22 48
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