tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7afeac307a9561e3a93682c1e7eb22f918aa1187 commit: b80d0a018089b824672c63b30bad9298abefdaec [5121/5128] proc-remove-pde_data-completely-fix config: m68k-defconfig (https://download.01.org/0day-ci/archive/20211204/202112040005.V7gmllJN-lkp@xxxxxxxxx/config) compiler: m68k-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=b80d0a018089b824672c63b30bad9298abefdaec 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 b80d0a018089b824672c63b30bad9298abefdaec # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/nubus/proc.c: In function 'nubus_proc_alloc_pde_data': >> drivers/nubus/proc.c:98:30: error: invalid application of 'sizeof' to incomplete type 'struct nubus_proc_pded' 98 | pded = kmalloc(sizeof(*pded), GFP_KERNEL); | ^ >> drivers/nubus/proc.c:102:13: error: invalid use of undefined type 'struct nubus_proc_pded' 102 | pded->res_ptr = ptr; | ^~ drivers/nubus/proc.c:103:13: error: invalid use of undefined type 'struct nubus_proc_pded' 103 | pded->res_size = size; | ^~ >> drivers/nubus/proc.c:104:16: error: returning 'struct nubus_proc_pded *' from a function with incompatible return type 'struct nubus_proc_pde_data *' [-Werror=incompatible-pointer-types] 104 | return pded; | ^~~~ cc1: some warnings being treated as errors vim +98 drivers/nubus/proc.c 92 93 static struct nubus_proc_pde_data * 94 nubus_proc_alloc_pde_data(unsigned char *ptr, unsigned int size) 95 { 96 struct nubus_proc_pded *pded; 97 > 98 pded = kmalloc(sizeof(*pded), GFP_KERNEL); 99 if (!pded) 100 return NULL; 101 > 102 pded->res_ptr = ptr; 103 pded->res_size = size; > 104 return pded; 105 } 106 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx