tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7c5e07b73ff3011c9b82d4a3286a3362b951ad2b commit: 9f0b715d001153c4002b39f2e1acdf9183e3735b [12802/13542] lib/nodemask: inline next_node_in() and node_random() config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220730/202207301511.wBj7xvRd-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 12.1.0 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=9f0b715d001153c4002b39f2e1acdf9183e3735b 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 9f0b715d001153c4002b39f2e1acdf9183e3735b # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/nodemask.h:97, from include/linux/mmzone.h:17, from include/linux/gfp.h:7, from include/linux/radix-tree.h:12, from include/linux/idr.h:15, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/pci.h:35, from arch/powerpc/kernel/prom_init.c:24: include/linux/random.h: In function 'add_latent_entropy': >> include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'? 25 | add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy)); | ^~~~~~~~~~~~~~ | add_latent_entropy include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in vim +25 include/linux/random.h 38addce8b600ca Emese Revfy 2016-06-20 21 7e756f423af808 Vasily Gorbik 2019-05-07 22 #if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__) 38addce8b600ca Emese Revfy 2016-06-20 23 static inline void add_latent_entropy(void) 38addce8b600ca Emese Revfy 2016-06-20 24 { 2f14062bb14b0f Jason A. Donenfeld 2022-05-05 @25 add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy)); 38addce8b600ca Emese Revfy 2016-06-20 26 } 38addce8b600ca Emese Revfy 2016-06-20 27 #else 38addce8b600ca Emese Revfy 2016-06-20 28 static inline void add_latent_entropy(void) { } 38addce8b600ca Emese Revfy 2016-06-20 29 #endif 38addce8b600ca Emese Revfy 2016-06-20 30 :::::: The code at line 25 was first introduced by commit :::::: 2f14062bb14b0fcfcc21e6dc7d5b5c0d25966164 random: handle latent entropy and command line from random_init() :::::: TO: Jason A. Donenfeld <Jason@xxxxxxxxx> :::::: CC: Jason A. Donenfeld <Jason@xxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp