tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: bdcc9f6a568275aed4cc32fd2312432d2ff1b704 commit: 3f7320428fa41a4c8be9c6f3d0cc06beeb0b3df8 [12285/12841] iwlwifi: pcie: simplify iwl_pci_find_dev_info() config: alpha-randconfig-r004-20211028 (attached as .config) compiler: alpha-linux-gcc (GCC) 11.2.0 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=3f7320428fa41a4c8be9c6f3d0cc06beeb0b3df8 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 3f7320428fa41a4c8be9c6f3d0cc06beeb0b3df8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/linux/list.h:9, from include/linux/module.h:12, from drivers/net/wireless/intel/iwlwifi/pcie/drv.c:9: drivers/net/wireless/intel/iwlwifi/pcie/drv.c: In function 'iwl_pci_find_dev_info': >> include/linux/kernel.h:44:25: warning: overflow in conversion from 'long unsigned int' to 'int' changes value from '18446744073709551615' to '-1' [-Woverflow] 44 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) | ^ drivers/net/wireless/intel/iwlwifi/pcie/drv.c:1344:18: note: in expansion of macro 'ARRAY_SIZE' 1344 | for (i = ARRAY_SIZE(iwl_dev_info_table) - 1; i >= 0; i--) { | ^~~~~~~~~~ vim +44 include/linux/kernel.h d38499530e5f17 Christoph Hellwig 2016-11-01 39 e8c97af0c1f23d Randy Dunlap 2017-10-13 40 /** e8c97af0c1f23d Randy Dunlap 2017-10-13 41 * ARRAY_SIZE - get the number of elements in array @arr e8c97af0c1f23d Randy Dunlap 2017-10-13 42 * @arr: array to be sized e8c97af0c1f23d Randy Dunlap 2017-10-13 43 */ c5e631cf65f4d6 Rusty Russell 2007-05-06 @44 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) c5e631cf65f4d6 Rusty Russell 2007-05-06 45 :::::: The code at line 44 was first introduced by commit :::::: c5e631cf65f4d6875efcd571275436f2964a8b48 ARRAY_SIZE: check for type :::::: TO: Rusty Russell <rusty@xxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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