tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git msi head: c176cd1c88abe6b527b9fc0bc58585b4f1858079 commit: af8fff0d2612f31d67146cf55e3d98870ab2f069 [12/89] PCI/MSI: Make arch_restore_msi_irqs() less horrible. config: x86_64-buildonly-randconfig-r006-20211116 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project fbe72e41b99dc7994daac300d208a955be3e4a0a) 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://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git/commit/?id... git remote add tglx-devel https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git git fetch --no-tags tglx-devel msi git checkout af8fff0d2612f31d67146cf55e3d98870ab2f069 # 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 >>): In file included from drivers/gpu/drm/i915/i915_drv.c:50: In file included from drivers/gpu/drm/i915/display/intel_cdclk.h:11: In file included from drivers/gpu/drm/i915/i915_drv.h:36: In file included from arch/x86/include/asm/hypervisor.h:39: arch/x86/include/asm/xen/hypervisor.h:78:2: error: #endif without #if #endif /* _ASM_X86_XEN_HYPERVISOR_H */ ^ In file included from drivers/gpu/drm/i915/i915_drv.c:50: In file included from drivers/gpu/drm/i915/display/intel_cdclk.h:11: In file included from drivers/gpu/drm/i915/i915_drv.h:84: In file included from drivers/gpu/drm/i915/gt/intel_engine.h:18: 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:19: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:13: In file included from drivers/gpu/drm/i915/i915_vma.h:34: if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ 1 warning and 1 error generated. -- In file included from drivers/gpu/drm/i915/i915_config.c:6: In file included from drivers/gpu/drm/i915/i915_drv.h:36: In file included from arch/x86/include/asm/hypervisor.h:39: arch/x86/include/asm/xen/hypervisor.h:64:51: warning: declaration of 'struct pci_dev' will not be visible outside of this function [-Wvisibility] static inline bool xen_initdom_restore_msi(struct pci_dev *dev) { return true; } ^ arch/x86/include/asm/xen/hypervisor.h:78:2: error: #endif without #if #endif /* _ASM_X86_XEN_HYPERVISOR_H */ ^ In file included from drivers/gpu/drm/i915/i915_config.c:6: In file included from drivers/gpu/drm/i915/i915_drv.h:84: In file included from drivers/gpu/drm/i915/gt/intel_engine.h:18: 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:19: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:13: In file included from drivers/gpu/drm/i915/i915_vma.h:34: if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ 2 warnings and 1 error generated. -- In file included from drivers/gpu/drm/i915/intel_pm.c:38: In file included from drivers/gpu/drm/i915/display/intel_de.h:9: In file included from drivers/gpu/drm/i915/i915_drv.h:36: In file included from arch/x86/include/asm/hypervisor.h:39: arch/x86/include/asm/xen/hypervisor.h:78:2: error: #endif without #if #endif /* _ASM_X86_XEN_HYPERVISOR_H */ ^ In file included from drivers/gpu/drm/i915/intel_pm.c:38: In file included from drivers/gpu/drm/i915/display/intel_de.h:9: In file included from drivers/gpu/drm/i915/i915_drv.h:84: In file included from drivers/gpu/drm/i915/gt/intel_engine.h:18: 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:19: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:13: In file included from drivers/gpu/drm/i915/i915_vma.h:34: if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/intel_pm.c:3065:12: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical] changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/intel_pm.c:3065:12: note: cast one or both operands to int to silence this warning drivers/gpu/drm/i915/intel_pm.c:3065:12: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical] changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ || drivers/gpu/drm/i915/intel_pm.c:3065:12: note: cast one or both operands to int to silence this warning 3 warnings and 1 error generated. -- In file included from drivers/gpu/drm/i915/gem/i915_gem_internal.c:11: In file included from drivers/gpu/drm/i915/i915_drv.h:36: In file included from arch/x86/include/asm/hypervisor.h:39: arch/x86/include/asm/xen/hypervisor.h:78:2: error: #endif without #if #endif /* _ASM_X86_XEN_HYPERVISOR_H */ ^ In file included from drivers/gpu/drm/i915/gem/i915_gem_internal.c:11: In file included from drivers/gpu/drm/i915/i915_drv.h:84: In file included from drivers/gpu/drm/i915/gt/intel_engine.h:18: 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:19: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:13: In file included from drivers/gpu/drm/i915/i915_vma.h:34: if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ 2 warnings and 1 error generated. -- In file included from drivers/gpu/drm/i915/i915_query.c:9: In file included from drivers/gpu/drm/i915/i915_drv.h:36: In file included from arch/x86/include/asm/hypervisor.h:39: arch/x86/include/asm/xen/hypervisor.h:64:51: warning: declaration of 'struct pci_dev' will not be visible outside of this function [-Wvisibility] static inline bool xen_initdom_restore_msi(struct pci_dev *dev) { return true; } ^ arch/x86/include/asm/xen/hypervisor.h:78:2: error: #endif without #if #endif /* _ASM_X86_XEN_HYPERVISOR_H */ ^ In file included from drivers/gpu/drm/i915/i915_query.c:9: In file included from drivers/gpu/drm/i915/i915_drv.h:84: In file included from drivers/gpu/drm/i915/gt/intel_engine.h:18: 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:19: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:13: In file included from drivers/gpu/drm/i915/i915_vma.h:34: if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ if (overflows_type(item.query_id - 1, unsigned long)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ 3 warnings and 1 error generated. -- In file included from drivers/gpu/drm/i915/display/intel_fb.c:10: 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:36: In file included from arch/x86/include/asm/hypervisor.h:39: arch/x86/include/asm/xen/hypervisor.h:78:2: error: #endif without #if #endif /* _ASM_X86_XEN_HYPERVISOR_H */ ^ In file included from drivers/gpu/drm/i915/display/intel_fb.c:10: 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:18: 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:19: In file included from drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:13: In file included from drivers/gpu/drm/i915/i915_vma.h:34: if (overflows_type(size, obj->base.size)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ ~~~~~~~~~~~~~~~~ assign_chk_ovf(i915, remap_info->offset, obj_offset); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_fb.c:845:28: note: expanded from macro 'assign_chk_ovf' drm_WARN_ON(&(i915)->drm, overflows_type(val, var)); \ ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:126:32: note: expanded from macro 'overflows_type' (sizeof(x) > sizeof(T) && (x) >> BITS_PER_TYPE(T)) ^ include/drm/drm_print.h:593:19: note: expanded from macro 'drm_WARN_ON' drm_WARN((drm), (x), "%s", \ ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/drm/drm_print.h:583:7: 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); \ ^~~~~~~~~ 2 warnings and 1 error 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 :::::: The code at line 43 was first introduced by commit :::::: ae2fb480f32f657d896d78b6214c2efebfa61993 drm/i915/gem: consolidate 2big error checking for object sizes :::::: TO: Matthew Auld <matthew.auld(a)intel.com&gt; :::::: CC: Daniel Vetter <daniel.vetter(a)ffwll.ch&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org