[kbuild-all] Re: [PATCH v6 2/7] mm: introduce external memory hinting API

Hi Minchan, I love your patch! Perhaps something to improve: [auto build test WARNING on m68k/for-next] [also build test WARNING on powerpc/next s390/features linus/master v5.6-rc2 next-20200220] [cannot apply to arm64/for-next/core tip/x86/asm arm/for-next hp-parisc/for-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Minchan-Kim/introduce-memory-hin... base: https://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git for-next config: nds32-randconfig-a001-20200220 (attached as .config) compiler: nds32le-linux-gcc (GCC) 9.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=9.2.0 make.cross ARCH=nds32 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from arch/nds32/include/uapi/asm/unistd.h:10, from arch/nds32/include/asm/unistd.h:6, from arch/nds32/kernel/vdso/sigreturn.S:6: 858 | #define __NR_pidfd_getfd 439 | include/uapi/asm-generic/unistd.h:856: note: this is the location of the previous definition 856 | #define __NR_pidfd_getfd 438 | -- In file included from arch/nds32/include/uapi/asm/unistd.h:10, from arch/nds32/include/asm/unistd.h:6, from <stdin>:2: 858 | #define __NR_pidfd_getfd 439 | include/uapi/asm-generic/unistd.h:856: note: this is the location of the previous definition 856 | #define __NR_pidfd_getfd 438 | <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] -- In file included from arch/nds32/include/uapi/asm/unistd.h:10, from arch/nds32/include/asm/unistd.h:6, from <stdin>:2: 858 | #define __NR_pidfd_getfd 439 | include/uapi/asm-generic/unistd.h:856: note: this is the location of the previous definition 856 | #define __NR_pidfd_getfd 438 | <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] 16 real 2 user 4 sys 39.01% cpu make modules_prepare -- In file included from arch/nds32/include/uapi/asm/unistd.h:10, from arch/nds32/include/asm/unistd.h:6, from <stdin>:2: 858 | #define __NR_pidfd_getfd 439 | include/uapi/asm-generic/unistd.h:856: note: this is the location of the previous definition 856 | #define __NR_pidfd_getfd 438 | <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] In file included from arch/nds32/include/uapi/asm/unistd.h:10, from arch/nds32/include/asm/unistd.h:6, from arch/nds32/kernel/vdso/sigreturn.S:6: 858 | #define __NR_pidfd_getfd 439 | include/uapi/asm-generic/unistd.h:856: note: this is the location of the previous definition 856 | #define __NR_pidfd_getfd 438 | In file included from arch/nds32/include/uapi/asm/unistd.h:10, from arch/nds32/include/asm/unistd.h:6, from arch/nds32/kernel/vdso/gettimeofday.c:11: 858 | #define __NR_pidfd_getfd 439 | include/uapi/asm-generic/unistd.h:856: note: this is the location of the previous definition 856 | #define __NR_pidfd_getfd 438 | 17 real 4 user 6 sys 59.28% cpu make prepare vim +/__NR_pidfd_getfd +858 include/uapi/asm-generic/unistd.h 853 854 #define __NR_openat2 437 855 __SYSCALL(__NR_openat2, sys_openat2) 856 #define __NR_pidfd_getfd 438 857 __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd) 859 __SYSCALL(__NR_process_madvise, sys_process_madvise) 860 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org