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charset=us-ascii Content-Disposition: inline CC: linux-kernel@vger.kernel.org TO: Thomas Gleixner CC: Borislav Petkov Hi Thomas, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fd0584d220fe285dc45be43eede55df89ad6a3d9 commit: c450c8f532b63475b30e29bc600c25ab0a4ab282 x86/dumpstack/64: Speedup in_exception_stack() date: 6 years ago config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20241228/202412281626.QrGK7zqy-lkp@intel.com/config) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241228/202412281626.QrGK7zqy-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202412281626.QrGK7zqy-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/kernel/dumpstack_64.c:80:2: warning: arithmetic between different enumeration types ('enum stack_type' and 'enum exception_stack_ordering') [-Wenum-enum-conversion] 80 | EPAGERANGE(DF), | ^~~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:70:32: note: expanded from macro 'EPAGERANGE' 70 | .type = STACK_TYPE_EXCEPTION + ESTACK_ ##st, } | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:81:2: warning: arithmetic between different enumeration types ('enum stack_type' and 'enum exception_stack_ordering') [-Wenum-enum-conversion] 81 | EPAGERANGE(NMI), | ^~~~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:70:32: note: expanded from macro 'EPAGERANGE' 70 | .type = STACK_TYPE_EXCEPTION + ESTACK_ ##st, } | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:82:2: warning: arithmetic between different enumeration types ('enum stack_type' and 'enum exception_stack_ordering') [-Wenum-enum-conversion] 82 | EPAGERANGE(DB1), | ^~~~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:70:32: note: expanded from macro 'EPAGERANGE' 70 | .type = STACK_TYPE_EXCEPTION + ESTACK_ ##st, } | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:83:2: warning: arithmetic between different enumeration types ('enum stack_type' and 'enum exception_stack_ordering') [-Wenum-enum-conversion] 83 | EPAGERANGE(DB), | ^~~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:70:32: note: expanded from macro 'EPAGERANGE' 70 | .type = STACK_TYPE_EXCEPTION + ESTACK_ ##st, } | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:84:2: warning: arithmetic between different enumeration types ('enum stack_type' and 'enum exception_stack_ordering') [-Wenum-enum-conversion] 84 | EPAGERANGE(MCE), | ^~~~~~~~~~~~~~~ arch/x86/kernel/dumpstack_64.c:70:32: note: expanded from macro 'EPAGERANGE' 70 | .type = STACK_TYPE_EXCEPTION + ESTACK_ ##st, } | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~ 5 warnings generated. vim +80 arch/x86/kernel/dumpstack_64.c 64 65 #define EPAGERANGE(st) \ 66 [PFN_DOWN(CEA_ESTACK_OFFS(st)) ... \ 67 PFN_DOWN(CEA_ESTACK_OFFS(st) + CEA_ESTACK_SIZE(st) - 1)] = { \ 68 .offs = CEA_ESTACK_OFFS(st), \ 69 .size = CEA_ESTACK_SIZE(st), \ 70 .type = STACK_TYPE_EXCEPTION + ESTACK_ ##st, } 71 72 /* 73 * Array of exception stack page descriptors. If the stack is larger than 74 * PAGE_SIZE, all pages covering a particular stack will have the same 75 * info. The guard pages including the not mapped DB2 stack are zeroed 76 * out. 77 */ 78 static const 79 struct estack_pages estack_pages[CEA_ESTACK_PAGES] ____cacheline_aligned = { > 80 EPAGERANGE(DF), 81 EPAGERANGE(NMI), 82 EPAGERANGE(DB1), 83 EPAGERANGE(DB), 84 EPAGERANGE(MCE), 85 }; 86 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki