tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 21498d01d045c5b95b93e0a0625ae965b4330ebe commit: 81db71a60292e9a40ae8f6ef137b17f2aaa15a52 [12308/12886] KVM: x86: hyper-v: replace bitmap_weight() with hweight64() config: i386-randconfig-a011 (https://download.01.org/0day-ci/archive/20220520/202205201624.A4IhDdYX-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e00cbbec06c08dc616a0d52a20f678b8fbd4e304) 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/next/linux-next.git/commit/?id=81db71a60292e9a40ae8f6ef137b17f2aaa15a52 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 81db71a60292e9a40ae8f6ef137b17f2aaa15a52 # 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 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/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:10:9: note: expanded from macro '__const_hweight8' ((!!((w) & (1ULL << 0))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:11:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 1))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:12:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 2))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:13:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 3))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:14:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 4))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:15:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 5))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:16:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 6))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:17:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 7))))) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:10:9: note: expanded from macro '__const_hweight8' ((!!((w) & (1ULL << 0))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:11:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 1))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:12:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 2))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:13:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 3))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:14:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 4))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:15:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 5))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:16:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 6))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:17:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 7))))) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:10:9: note: expanded from macro '__const_hweight8' ((!!((w) & (1ULL << 0))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:11:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 1))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:12:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 2))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:13:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 3))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:14:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 4))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:15:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 5))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/asm-generic/bitops/const_hweight.h:16:9: note: expanded from macro '__const_hweight8' (!!((w) & (1ULL << 6))) + \ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ arch/x86/kvm/hyperv.c:1983:22: warning: shift count >= width of type [-Wshift-count-overflow] if (hc->var_cnt != hweight64(valid_bank_mask)) ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64' #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) ^~~~~~~~~~~~~~~~~~~~ include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64' #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) ^ ~~ include/asm-generic/bitops/const_hweight.h:20:73: note: expanded from macro '__const_hweight32' #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) vim +1983 arch/x86/kvm/hyperv.c 1934 1935 static u64 kvm_hv_send_ipi(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc) 1936 { 1937 struct kvm *kvm = vcpu->kvm; 1938 struct hv_send_ipi_ex send_ipi_ex; 1939 struct hv_send_ipi send_ipi; 1940 DECLARE_BITMAP(vcpu_mask, KVM_MAX_VCPUS); 1941 unsigned long valid_bank_mask; 1942 u64 sparse_banks[KVM_HV_MAX_SPARSE_VCPU_SET_BITS]; 1943 u32 vector; 1944 bool all_cpus; 1945 1946 if (hc->code == HVCALL_SEND_IPI) { 1947 if (!hc->fast) { 1948 if (unlikely(kvm_read_guest(kvm, hc->ingpa, &send_ipi, 1949 sizeof(send_ipi)))) 1950 return HV_STATUS_INVALID_HYPERCALL_INPUT; 1951 sparse_banks[0] = send_ipi.cpu_mask; 1952 vector = send_ipi.vector; 1953 } else { 1954 /* 'reserved' part of hv_send_ipi should be 0 */ 1955 if (unlikely(hc->ingpa >> 32 != 0)) 1956 return HV_STATUS_INVALID_HYPERCALL_INPUT; 1957 sparse_banks[0] = hc->outgpa; 1958 vector = (u32)hc->ingpa; 1959 } 1960 all_cpus = false; 1961 valid_bank_mask = BIT_ULL(0); 1962 1963 trace_kvm_hv_send_ipi(vector, sparse_banks[0]); 1964 } else { 1965 if (!hc->fast) { 1966 if (unlikely(kvm_read_guest(kvm, hc->ingpa, &send_ipi_ex, 1967 sizeof(send_ipi_ex)))) 1968 return HV_STATUS_INVALID_HYPERCALL_INPUT; 1969 } else { 1970 send_ipi_ex.vector = (u32)hc->ingpa; 1971 send_ipi_ex.vp_set.format = hc->outgpa; 1972 send_ipi_ex.vp_set.valid_bank_mask = sse128_lo(hc->xmm[0]); 1973 } 1974 1975 trace_kvm_hv_send_ipi_ex(send_ipi_ex.vector, 1976 send_ipi_ex.vp_set.format, 1977 send_ipi_ex.vp_set.valid_bank_mask); 1978 1979 vector = send_ipi_ex.vector; 1980 valid_bank_mask = send_ipi_ex.vp_set.valid_bank_mask; 1981 all_cpus = send_ipi_ex.vp_set.format == HV_GENERIC_SET_ALL; 1982 > 1983 if (hc->var_cnt != hweight64(valid_bank_mask)) 1984 return HV_STATUS_INVALID_HYPERCALL_INPUT; 1985 1986 if (all_cpus) 1987 goto check_and_send_ipi; 1988 1989 if (!hc->var_cnt) 1990 goto ret_success; 1991 1992 if (kvm_get_sparse_vp_set(kvm, hc, 1, sparse_banks, 1993 offsetof(struct hv_send_ipi_ex, 1994 vp_set.bank_contents))) 1995 return HV_STATUS_INVALID_HYPERCALL_INPUT; 1996 } 1997 1998 check_and_send_ipi: 1999 if ((vector < HV_IPI_LOW_VECTOR) || (vector > HV_IPI_HIGH_VECTOR)) 2000 return HV_STATUS_INVALID_HYPERCALL_INPUT; 2001 2002 if (all_cpus) { 2003 kvm_send_ipi_to_many(kvm, vector, NULL); 2004 } else { 2005 sparse_set_to_vcpu_mask(kvm, sparse_banks, valid_bank_mask, vcpu_mask); 2006 2007 kvm_send_ipi_to_many(kvm, vector, vcpu_mask); 2008 } 2009 2010 ret_success: 2011 return HV_STATUS_SUCCESS; 2012 } 2013 -- 0-DAY CI Kernel Test Service https://01.org/lkp
