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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'
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

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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