Messages in this thread | | | Date | Fri, 10 Jun 2022 01:55:31 +0800 | From | kernel test robot <> | Subject | [intel-tdx:kvm-upstream-workaround 449/453] arch/x86/kernel/fpu/xstate.c:719:7: warning: format specifies type 'long' but the argument has type 'unsigned int' |
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tree: https://github.com/intel/tdx.git kvm-upstream-workaround head: 64f3ddf316eab9398414b94e62a01d185e6e94c8 commit: c00f6297349a8d81049eefe338ee079179787e28 [449/453] X86: FPU: Fix unexpected #PF while executing XRSTORS config: i386-randconfig-a013 (https://download.01.org/0day-ci/archive/20220610/202206100124.87NJ8YRo-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 971e13d69e3e7b687213fef22952be6a328c426c) 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/tdx/commit/c00f6297349a8d81049eefe338ee079179787e28 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout c00f6297349a8d81049eefe338ee079179787e28 # 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 arch/x86/kernel/fpu/
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> arch/x86/kernel/fpu/xstate.c:719:7: warning: format specifies type 'long' but the argument has type 'unsigned int' [-Wformat] sizeof(init_fpstate_full), kernel_size); ^~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:133:29: note: expanded from macro 'WARN' __WARN_printf(TAINT_WARN, format); \ ^~~~~~ include/asm-generic/bug.h:105:17: note: expanded from macro '__WARN_printf' __warn_printk(arg); \ ^~~ 1 warning generated.
vim +719 arch/x86/kernel/fpu/xstate.c
685 686 static int __init init_xstate_size(void) 687 { 688 /* Recompute the context size for enabled features: */ 689 unsigned int user_size, kernel_size, kernel_default_size; 690 bool compacted = cpu_feature_enabled(X86_FEATURE_XSAVES); 691 692 /* Uncompacted user space size */ 693 user_size = get_xsave_size_user(); 694 695 /* 696 * XSAVES kernel size includes supervisor states and 697 * uses compacted format when available. 698 * 699 * XSAVE does not support supervisor states so 700 * kernel and user size is identical. 701 */ 702 if (compacted) 703 kernel_size = get_xsaves_size_no_independent(); 704 else 705 kernel_size = user_size; 706 707 kernel_default_size = 708 xstate_calculate_size(fpu_kernel_cfg.default_features, compacted); 709 710 /* Ensure we have the space to store all default enabled features. */ 711 if (!is_supported_xstate_size(kernel_default_size)) 712 return -EINVAL; 713 714 if (!paranoid_xstate_size_valid(kernel_size)) 715 return -EINVAL; 716 717 WARN(kernel_size > sizeof(init_fpstate_full), 718 "Too small init_fpstate size:%ld expected:%d\n", > 719 sizeof(init_fpstate_full), kernel_size); 720 721 fpu_kernel_cfg.max_size = kernel_size; 722 fpu_user_cfg.max_size = user_size; 723 724 fpu_kernel_cfg.default_size = kernel_default_size; 725 fpu_user_cfg.default_size = 726 xstate_calculate_size(fpu_user_cfg.default_features, false); 727 728 return 0; 729 } 730
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