[kbuild-all] [norov:bm8 6/8] include/linux/cpumask.h:602:14: error: redefinition of 'cpumask_first_and'

tree: https://github.com/norov/linux bm8 head: 0a0ad2ef1593e9a9fbb0689e791698d8496a52a8 commit: 50128e2f5132bd1f35ecb626628a6ea1cdeb8779 [6/8] cpumask: use find_first_and_bit() config: um-x86_64_defconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/norov/linux/commit/50128e2f5132bd1f35ecb626628a6ea1cde... git remote add norov https://github.com/norov/linux git fetch --no-tags norov bm8 git checkout 50128e2f5132bd1f35ecb626628a6ea1cdeb8779 # save the attached .config to linux build tree make W=1 ARCH=um SUBARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from include/linux/smp.h:13, from include/linux/lockdep.h:14, from include/linux/rcupdate.h:29, from include/linux/rculist.h:11, from include/linux/pid.h:5, from include/linux/sched.h:14, from arch/x86/um/shared/sysdep/kernel-offsets.h:3, from arch/um/kernel/asm-offsets.c:1: 602 | unsigned int cpumask_first_and(const struct cpumask *srcp1, const struct cpumask *srcp2) | ^~~~~~~~~~~~~~~~~ include/linux/cpumask.h:126:28: note: previous definition of 'cpumask_first_and' was here 126 | static inline unsigned int cpumask_first_and(const struct cpumask *srcp1, | ^~~~~~~~~~~~~~~~~ In file included from arch/um/kernel/asm-offsets.c:1: arch/x86/um/shared/sysdep/kernel-offsets.h:9:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] 9 | void foo(void) | ^~~ -- arch/x86/um/user-offsets.c:18:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] 18 | void foo(void) | ^~~ In file included from include/linux/smp.h:13, from include/linux/lockdep.h:14, from include/linux/rcupdate.h:29, from include/linux/rculist.h:11, from include/linux/pid.h:5, from include/linux/sched.h:14, from arch/x86/um/shared/sysdep/kernel-offsets.h:3, from arch/um/kernel/asm-offsets.c:1: 602 | unsigned int cpumask_first_and(const struct cpumask *srcp1, const struct cpumask *srcp2) | ^~~~~~~~~~~~~~~~~ include/linux/cpumask.h:126:28: note: previous definition of 'cpumask_first_and' was here 126 | static inline unsigned int cpumask_first_and(const struct cpumask *srcp1, | ^~~~~~~~~~~~~~~~~ In file included from arch/um/kernel/asm-offsets.c:1: arch/x86/um/shared/sysdep/kernel-offsets.h:9:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] 9 | void foo(void) | ^~~ make[2]: *** [scripts/Makefile.build:118: arch/um/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1288: prepare0] Error 2 make[1]: Target 'modules_prepare' not remade because of errors. make: *** [Makefile:222: __sub-make] Error 2 make: Target 'modules_prepare' not remade because of errors. -- error: no override and no default toolchain set init/Kconfig:70:warning: 'RUSTC_VERSION': number is invalid arch/x86/um/user-offsets.c:18:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] 18 | void foo(void) | ^~~ In file included from include/linux/smp.h:13, from include/linux/lockdep.h:14, from include/linux/rcupdate.h:29, from include/linux/rculist.h:11, from include/linux/pid.h:5, from include/linux/sched.h:14, from arch/x86/um/shared/sysdep/kernel-offsets.h:3, from arch/um/kernel/asm-offsets.c:1: 602 | unsigned int cpumask_first_and(const struct cpumask *srcp1, const struct cpumask *srcp2) | ^~~~~~~~~~~~~~~~~ include/linux/cpumask.h:126:28: note: previous definition of 'cpumask_first_and' was here 126 | static inline unsigned int cpumask_first_and(const struct cpumask *srcp1, | ^~~~~~~~~~~~~~~~~ In file included from arch/um/kernel/asm-offsets.c:1: arch/x86/um/shared/sysdep/kernel-offsets.h:9:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] 9 | void foo(void) | ^~~ make[2]: *** [scripts/Makefile.build:118: arch/um/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1288: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:222: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +/cpumask_first_and +602 include/linux/cpumask.h 593 594 /** 595 * cpumask_first_and - return the first cpu from *srcp1 & *srcp2 596 * @src1p: the first input 597 * @src2p: the second input 598 * 599 * Returns >= nr_cpu_ids if no cpus set in both. See also cpumask_next_and(). 600 */ 601 static inline 603 { 604 return find_first_and_bit(cpumask_bits(srcp1), cpumask_bits(srcp2), nr_cpumask_bits); 605 } 606 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org