Hi David, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on 19164ad08bf668bca4f4bfbaacaa0a47c1b737a6] url: https://github.com/intel-lab-lkp/linux/commits/David-Matlack/KVM-Extend-Eager-Page-Splitting-to-the-shadow-MMU/20220402-015911 base: 19164ad08bf668bca4f4bfbaacaa0a47c1b737a6 config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20220402/202204021411.oOhP2vFP-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c4a1b07d0979e7ff20d7d541af666d822d66b566) 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-lab-lkp/linux/commit/5f7a06676291033d880081035c2efae13702a0c4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review David-Matlack/KVM-Extend-Eager-Page-Splitting-to-the-shadow-MMU/20220402-015911 git checkout 5f7a06676291033d880081035c2efae13702a0c4 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/x86/kvm/mmu/mmu.c:766:8: warning: format specifies type 'unsigned long long' but the argument has type 'int' [-Wformat] sp->role.access, access); ^~~~~~~~~~~~~~~ include/linux/printk.h:654:45: note: expanded from macro 'pr_err_ratelimited' printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/printk.h:640:17: note: expanded from macro 'printk_ratelimited' printk(fmt, ##__VA_ARGS__); \ ~~~ ^~~~~~~~~~~ include/linux/printk.h:446:60: note: expanded from macro 'printk' #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/printk.h:418:19: note: expanded from macro 'printk_index_wrap' _p_func(_fmt, ##__VA_ARGS__); \ ~~~~ ^~~~~~~~~~~ >> arch/x86/kvm/mmu/mmu.c:766:25: warning: format specifies type 'unsigned long long' but the argument has type 'u32' (aka 'unsigned int') [-Wformat] sp->role.access, access); ^~~~~~ include/linux/printk.h:654:45: note: expanded from macro 'pr_err_ratelimited' printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/printk.h:640:17: note: expanded from macro 'printk_ratelimited' printk(fmt, ##__VA_ARGS__); \ ~~~ ^~~~~~~~~~~ include/linux/printk.h:446:60: note: expanded from macro 'printk' #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/printk.h:418:19: note: expanded from macro 'printk_index_wrap' _p_func(_fmt, ##__VA_ARGS__); \ ~~~~ ^~~~~~~~~~~ 2 warnings generated. vim +766 arch/x86/kvm/mmu/mmu.c 754 755 static void kvm_mmu_page_set_access(struct kvm_mmu_page *sp, int index, u32 access) 756 { 757 if (!sp->role.direct) { 758 sp->shadowed_translation[index].access = access; 759 return; 760 } 761 762 if (WARN_ON(access != sp->role.access)) 763 pr_err_ratelimited("access mismatch under direct page %llx " 764 "(expected %llx, got %llx)\n", 765 kvm_mmu_page_get_gfn(sp, index), > 766 sp->role.access, access); 767 } 768 -- 0-DAY CI Kernel Test Service https://01.org/lkp