tree: https://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom.git prandom-5.10-v3 head: 3486a21c7e5bafbdbc0f7ea5d40f3dad39022bf4 commit: 3486a21c7e5bafbdbc0f7ea5d40f3dad39022bf4 [2/2] random32: add noise from network and scheduling activity config: powerpc64-randconfig-r031-20201012 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project a324d8f964bf421fa7d8b882b0f64ead28c4149c) 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 # install powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom.git/comm... git remote add wtarreau-prandom https://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom.git git fetch --no-tags wtarreau-prandom prandom-5.10-v3 git checkout 3486a21c7e5bafbdbc0f7ea5d40f3dad39022bf4 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): In file included from lib/random32.c:39: In file included from include/linux/random.h:118: a ^= this_cpu_read(net_rand_noise); ^ include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:321:23: note: expanded from macro '__pcpu_size_call_return' case 1: pscr_ret__ = stem##1(variable); break; \ ^ <scratch space>:195:1: note: expanded from here this_cpu_read_1 ^ include/asm-generic/percpu.h:320:31: note: expanded from macro 'this_cpu_read_1' #define this_cpu_read_1(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:128:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:321:23: note: expanded from macro '__pcpu_size_call_return' case 1: pscr_ret__ = stem##1(variable); break; \ ^ <scratch space>:195:1: note: expanded from here this_cpu_read_1 ^ include/asm-generic/percpu.h:320:31: note: expanded from macro 'this_cpu_read_1' #define this_cpu_read_1(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:130:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_restore(__flags); \ ^ include/linux/prandom.h:66:7: note: did you mean 'raw_local_irq_save'? include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:321:23: note: expanded from macro '__pcpu_size_call_return' case 1: pscr_ret__ = stem##1(variable); break; \ ^ <scratch space>:195:1: note: expanded from here this_cpu_read_1 ^ include/asm-generic/percpu.h:320:31: note: expanded from macro 'this_cpu_read_1' #define this_cpu_read_1(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:130:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_restore(__flags); \ ^ include/linux/prandom.h:66:7: note: 'raw_local_irq_save' declared here include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:321:23: note: expanded from macro '__pcpu_size_call_return' case 1: pscr_ret__ = stem##1(variable); break; \ ^ <scratch space>:195:1: note: expanded from here this_cpu_read_1 ^ include/asm-generic/percpu.h:320:31: note: expanded from macro 'this_cpu_read_1' #define this_cpu_read_1(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:128:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: a ^= this_cpu_read(net_rand_noise); ^ include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:322:23: note: expanded from macro '__pcpu_size_call_return' case 2: pscr_ret__ = stem##2(variable); break; \ ^ <scratch space>:199:1: note: expanded from here this_cpu_read_2 ^ include/asm-generic/percpu.h:323:31: note: expanded from macro 'this_cpu_read_2' #define this_cpu_read_2(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:128:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:322:23: note: expanded from macro '__pcpu_size_call_return' case 2: pscr_ret__ = stem##2(variable); break; \ ^ <scratch space>:199:1: note: expanded from here this_cpu_read_2 ^ include/asm-generic/percpu.h:323:31: note: expanded from macro 'this_cpu_read_2' #define this_cpu_read_2(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:130:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_restore(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:323:23: note: expanded from macro '__pcpu_size_call_return' case 4: pscr_ret__ = stem##4(variable); break; \ ^ <scratch space>:203:1: note: expanded from here this_cpu_read_4 ^ include/asm-generic/percpu.h:326:31: note: expanded from macro 'this_cpu_read_4' #define this_cpu_read_4(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:128:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:323:23: note: expanded from macro '__pcpu_size_call_return' case 4: pscr_ret__ = stem##4(variable); break; \ ^ <scratch space>:203:1: note: expanded from here this_cpu_read_4 ^ include/asm-generic/percpu.h:326:31: note: expanded from macro 'this_cpu_read_4' #define this_cpu_read_4(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:130:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_restore(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:324:23: note: expanded from macro '__pcpu_size_call_return' case 8: pscr_ret__ = stem##8(variable); break; \ ^ <scratch space>:207:1: note: expanded from here this_cpu_read_8 ^ include/asm-generic/percpu.h:329:31: note: expanded from macro 'this_cpu_read_8' #define this_cpu_read_8(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:128:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/percpu-defs.h:507:29: note: expanded from macro 'this_cpu_read' #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) ^ include/linux/percpu-defs.h:324:23: note: expanded from macro '__pcpu_size_call_return' case 8: pscr_ret__ = stem##8(variable); break; \ ^ <scratch space>:207:1: note: expanded from here this_cpu_read_8 ^ include/asm-generic/percpu.h:329:31: note: expanded from macro 'this_cpu_read_8' #define this_cpu_read_8(pcp) this_cpu_generic_read(pcp) ^ include/asm-generic/percpu.h:140:11: note: expanded from macro 'this_cpu_generic_read' __ret = __this_cpu_generic_read_noirq(pcp); \ ^ include/asm-generic/percpu.h:130:2: note: expanded from macro '__this_cpu_generic_read_noirq' raw_local_irq_restore(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_save' [-Werror,-Wimplicit-function-declaration] this_cpu_write(net_rand_noise, d); ^ include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:377:11: note: expanded from macro '__pcpu_size_call' case 1: stem##1(variable, __VA_ARGS__);break; \ ^ <scratch space>:211:1: note: expanded from here this_cpu_write_1 ^ include/asm-generic/percpu.h:333:36: note: expanded from macro 'this_cpu_write_1' #define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:147:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_restore' [-Werror,-Wimplicit-function-declaration] include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:377:11: note: expanded from macro '__pcpu_size_call' case 1: stem##1(variable, __VA_ARGS__);break; \ ^ <scratch space>:211:1: note: expanded from here this_cpu_write_1 ^ include/asm-generic/percpu.h:333:36: note: expanded from macro 'this_cpu_write_1' #define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:149:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_restore(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_save' [-Werror,-Wimplicit-function-declaration] include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:378:11: note: expanded from macro '__pcpu_size_call' case 2: stem##2(variable, __VA_ARGS__);break; \ ^ <scratch space>:212:1: note: expanded from here this_cpu_write_2 ^ include/asm-generic/percpu.h:336:36: note: expanded from macro 'this_cpu_write_2' #define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:147:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_restore' [-Werror,-Wimplicit-function-declaration] include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:378:11: note: expanded from macro '__pcpu_size_call' case 2: stem##2(variable, __VA_ARGS__);break; \ ^ <scratch space>:212:1: note: expanded from here this_cpu_write_2 ^ include/asm-generic/percpu.h:336:36: note: expanded from macro 'this_cpu_write_2' #define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:149:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_restore(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_save' [-Werror,-Wimplicit-function-declaration] include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:379:11: note: expanded from macro '__pcpu_size_call' case 4: stem##4(variable, __VA_ARGS__);break; \ ^ <scratch space>:213:1: note: expanded from here this_cpu_write_4 ^ include/asm-generic/percpu.h:339:36: note: expanded from macro 'this_cpu_write_4' #define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:147:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_restore' [-Werror,-Wimplicit-function-declaration] include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:379:11: note: expanded from macro '__pcpu_size_call' case 4: stem##4(variable, __VA_ARGS__);break; \ ^ <scratch space>:213:1: note: expanded from here this_cpu_write_4 ^ include/asm-generic/percpu.h:339:36: note: expanded from macro 'this_cpu_write_4' #define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:149:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_restore(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_save' [-Werror,-Wimplicit-function-declaration] include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:380:11: note: expanded from macro '__pcpu_size_call' case 8: stem##8(variable, __VA_ARGS__);break; \ ^ <scratch space>:214:1: note: expanded from here this_cpu_write_8 ^ include/asm-generic/percpu.h:342:36: note: expanded from macro 'this_cpu_write_8' #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:147:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_save(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: include/linux/prandom.h:68:2: error: implicit declaration of function 'raw_local_irq_restore' [-Werror,-Wimplicit-function-declaration] include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:380:11: note: expanded from macro '__pcpu_size_call' case 8: stem##8(variable, __VA_ARGS__);break; \ ^ <scratch space>:214:1: note: expanded from here this_cpu_write_8 ^ include/asm-generic/percpu.h:342:36: note: expanded from macro 'this_cpu_write_8' #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:149:2: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_restore(__flags); \ ^ In file included from lib/random32.c:39: In file included from include/linux/random.h:118: this_cpu_write(net_rand_noise, d); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:380:11: note: expanded from macro '__pcpu_size_call' case 8: stem##8(variable, __VA_ARGS__);break; \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <scratch space>:214:1: note: expanded from here this_cpu_write_8 ^ include/asm-generic/percpu.h:342:36: note: expanded from macro 'this_cpu_write_8' #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/percpu.h:147:21: note: expanded from macro 'this_cpu_generic_to_op' raw_local_irq_save(__flags); \ ^~~~~~~ include/linux/prandom.h:68:2: note: variable '__flags' is declared here include/linux/percpu-defs.h:508:34: note: expanded from macro 'this_cpu_write' #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val) ^ include/linux/percpu-defs.h:380:11: note: expanded from macro '__pcpu_size_call' case 8: stem##8(variable, __VA_ARGS__);break; \ ^ <scratch space>:214:1: note: expanded from here this_cpu_write_8 ^ include/asm-generic/percpu.h:342:36: note: expanded from macro 'this_cpu_write_8' #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) ^ include/asm-generic/percpu.h:146:2: note: expanded from macro 'this_cpu_generic_to_op' unsigned long __flags; \ ^ 1 warning and 16 errors generated. vim +/raw_local_irq_save +66 include/linux/prandom.h 58 59 static inline void prandom_u32_add_noise(unsigned long a, unsigned long b, 60 unsigned long c, unsigned long d) 61 { 62 /* 63 * This is not used cryptographically; it's just 64 * a convenient 4-word hash function. (3 xor, 2 add, 2 rol) 65 */ 67 PRND_SIPROUND(a, b, c, d); 69 } 70 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org