From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============4878110592198099214==" MIME-Version: 1.0 From: kernel test robot To: kbuild-all@lists.01.org Subject: [morse:mpam/snapshot/v5.16 88/137] include/linux/cacheinfo.h:114:24: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '18446744073709551615' to '4294967295' Date: Wed, 26 Jan 2022 03:28:18 +0800 Message-ID: <202201260308.f359R4GZ-lkp@intel.com> List-Id: --===============4878110592198099214== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable tree: https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpa= m/snapshot/v5.16 head: 364c1c42b229912132e1615c2ce15be7154e2156 commit: 626a68b7eb02b0a0bb7faaa4b91371c2f3d550d0 [88/137] cacheinfo: Allow = for >32-bit cache 'id' config: arc-randconfig-r043-20220124 (https://download.01.org/0day-ci/archi= ve/20220126/202201260308.f359R4GZ-lkp(a)intel.com/config) compiler: arc-elf-gcc (GCC) 11.2.0 reproduce (this is a W=3D1 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/morse/linux.git/c= ommit/?id=3D626a68b7eb02b0a0bb7faaa4b91371c2f3d550d0 git remote add morse https://git.kernel.org/pub/scm/linux/kernel/gi= t/morse/linux.git git fetch --no-tags morse mpam/snapshot/v5.16 git checkout 626a68b7eb02b0a0bb7faaa4b91371c2f3d550d0 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=3D$HOME/0day COMPILER=3Dgcc-11.2.0 make.cross= O=3Dbuild_dir ARCH=3Darc SHELL=3D/bin/bash drivers/base/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/base/cacheinfo.c:12: include/linux/cacheinfo.h: In function 'get_cpu_cacheinfo_id': >> include/linux/cacheinfo.h:114:24: warning: conversion from 'long long un= signed int' to 'long unsigned int' changes value from '18446744073709551615= ' to '4294967295' [-Woverflow] 114 | return ~0ULL; | ^ include/linux/cacheinfo.h:120:32: warning: conversion from 'long long un= signed int' to 'long unsigned int' changes value from '18446744073709551615= ' to '4294967295' [-Woverflow] 120 | return ~0ULL; | ^ include/linux/cacheinfo.h:124:16: warning: conversion from 'long long un= signed int' to 'long unsigned int' changes value from '18446744073709551615= ' to '4294967295' [-Woverflow] 124 | return ~0ULL; | ^ vim +114 include/linux/cacheinfo.h 103 = 104 /* 105 * Get the id of the cache associated with @cpu at level @level. 106 * cpuhp lock must be held. 107 */ 108 static inline unsigned long get_cpu_cacheinfo_id(int cpu, int level) 109 { 110 struct cpu_cacheinfo *ci =3D get_cpu_cacheinfo(cpu); 111 int i; 112 = 113 if (!ci->info_list) > 114 return ~0ULL; 115 = 116 for (i =3D 0; i < ci->num_leaves; i++) { 117 if (ci->info_list[i].level =3D=3D level) { 118 if (ci->info_list[i].attributes & CACHE_ID) 119 return ci->info_list[i].id; 120 return ~0ULL; 121 } 122 } 123 = 124 return ~0ULL; 125 } 126 = --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org --===============4878110592198099214==--