Hi Gregory, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on deller-parisc/for-next powerpc/next powerpc/fixes s390/features jcmvbkbc-xtensa/xtensa-for-next arnd-asm-generic/master linus/master v6.7-rc4] [cannot apply to tip/x86/asm geert-m68k/for-next geert-m68k/for-linus next-20231208] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Gregory-Price/mm-mempolicy-implement-the-sysfs-based-weighted_interleave-interface/20231209-150314 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20231209065931.3458-9-gregory.price%40memverge.com patch subject: [PATCH v2 08/11] mm/mempolicy: add set_mempolicy2 syscall config: arm-lpc32xx_defconfig (https://download.01.org/0day-ci/archive/20231210/202312100245.Jgz5mPhJ-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312100245.Jgz5mPhJ-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312100245.Jgz5mPhJ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from kernel/time/time.c:33: >> include/linux/syscalls.h:825:43: warning: declaration of 'struct mpol_args' will not be visible outside of this function [-Wvisibility] 825 | asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size, | ^ 1 warning generated. -- In file included from kernel/time/hrtimer.c:30: >> include/linux/syscalls.h:825:43: warning: declaration of 'struct mpol_args' will not be visible outside of this function [-Wvisibility] 825 | asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size, | ^ kernel/time/hrtimer.c:1651:7: warning: variable 'expires_in_hardirq' set but not used [-Wunused-but-set-variable] 1651 | bool expires_in_hardirq; | ^ kernel/time/hrtimer.c:277:20: warning: unused function 'is_migration_base' [-Wunused-function] 277 | static inline bool is_migration_base(struct hrtimer_clock_base *base) | ^ kernel/time/hrtimer.c:1876:20: warning: unused function '__hrtimer_peek_ahead_timers' [-Wunused-function] 1876 | static inline void __hrtimer_peek_ahead_timers(void) | ^ 4 warnings generated. vim +825 include/linux/syscalls.h 794 795 /* CONFIG_MMU only */ 796 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 797 asmlinkage long sys_swapoff(const char __user *specialfile); 798 asmlinkage long sys_mprotect(unsigned long start, size_t len, 799 unsigned long prot); 800 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 801 asmlinkage long sys_mlock(unsigned long start, size_t len); 802 asmlinkage long sys_munlock(unsigned long start, size_t len); 803 asmlinkage long sys_mlockall(int flags); 804 asmlinkage long sys_munlockall(void); 805 asmlinkage long sys_mincore(unsigned long start, size_t len, 806 unsigned char __user * vec); 807 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 808 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec, 809 size_t vlen, int behavior, unsigned int flags); 810 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags); 811 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 812 unsigned long prot, unsigned long pgoff, 813 unsigned long flags); 814 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 815 unsigned long mode, 816 const unsigned long __user *nmask, 817 unsigned long maxnode, 818 unsigned flags); 819 asmlinkage long sys_get_mempolicy(int __user *policy, 820 unsigned long __user *nmask, 821 unsigned long maxnode, 822 unsigned long addr, unsigned long flags); 823 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 824 unsigned long maxnode); > 825 asmlinkage long sys_set_mempolicy2(struct mpol_args *args, size_t size, 826 unsigned long flags); 827 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 828 const unsigned long __user *from, 829 const unsigned long __user *to); 830 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 831 const void __user * __user *pages, 832 const int __user *nodes, 833 int __user *status, 834 int flags); 835 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 836 siginfo_t __user *uinfo); 837 asmlinkage long sys_perf_event_open( 838 struct perf_event_attr __user *attr_uptr, 839 pid_t pid, int cpu, int group_fd, unsigned long flags); 840 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 841 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 842 unsigned int vlen, unsigned flags, 843 struct __kernel_timespec __user *timeout); 844 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 845 unsigned int vlen, unsigned flags, 846 struct old_timespec32 __user *timeout); 847 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 848 int options, struct rusage __user *ru); 849 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 850 const struct rlimit64 __user *new_rlim, 851 struct rlimit64 __user *old_rlim); 852 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 853 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 854 u64 mask, int fd, 855 const char __user *pathname); 856 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 857 struct file_handle __user *handle, 858 int __user *mnt_id, int flag); 859 asmlinkage long sys_open_by_handle_at(int mountdirfd, 860 struct file_handle __user *handle, 861 int flags); 862 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 863 struct __kernel_timex __user *tx); 864 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 865 struct old_timex32 __user *tx); 866 asmlinkage long sys_syncfs(int fd); 867 asmlinkage long sys_setns(int fd, int nstype); 868 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); 869 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 870 unsigned int vlen, unsigned flags); 871 asmlinkage long sys_process_vm_readv(pid_t pid, 872 const struct iovec __user *lvec, 873 unsigned long liovcnt, 874 const struct iovec __user *rvec, 875 unsigned long riovcnt, 876 unsigned long flags); 877 asmlinkage long sys_process_vm_writev(pid_t pid, 878 const struct iovec __user *lvec, 879 unsigned long liovcnt, 880 const struct iovec __user *rvec, 881 unsigned long riovcnt, 882 unsigned long flags); 883 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 884 unsigned long idx1, unsigned long idx2); 885 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 886 asmlinkage long sys_sched_setattr(pid_t pid, 887 struct sched_attr __user *attr, 888 unsigned int flags); 889 asmlinkage long sys_sched_getattr(pid_t pid, 890 struct sched_attr __user *attr, 891 unsigned int size, 892 unsigned int flags); 893 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 894 int newdfd, const char __user *newname, 895 unsigned int flags); 896 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 897 void __user *uargs); 898 asmlinkage long sys_getrandom(char __user *buf, size_t count, 899 unsigned int flags); 900 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 901 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 902 asmlinkage long sys_execveat(int dfd, const char __user *filename, 903 const char __user *const __user *argv, 904 const char __user *const __user *envp, int flags); 905 asmlinkage long sys_userfaultfd(int flags); 906 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id); 907 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 908 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 909 int fd_out, loff_t __user *off_out, 910 size_t len, unsigned int flags); 911 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 912 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 913 rwf_t flags); 914 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 915 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 916 rwf_t flags); 917 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 918 unsigned long prot, int pkey); 919 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 920 asmlinkage long sys_pkey_free(int pkey); 921 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 922 unsigned mask, struct statx __user *buffer); 923 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 924 int flags, uint32_t sig); 925 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 926 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 927 int to_dfd, const char __user *to_path, 928 unsigned int ms_flags); 929 asmlinkage long sys_mount_setattr(int dfd, const char __user *path, 930 unsigned int flags, 931 struct mount_attr __user *uattr, size_t usize); 932 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 933 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 934 const void __user *value, int aux); 935 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 936 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 937 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 938 siginfo_t __user *info, 939 unsigned int flags); 940 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags); 941 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr, 942 size_t size, __u32 flags); 943 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type, 944 const void __user *rule_attr, __u32 flags); 945 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags); 946 asmlinkage long sys_memfd_secret(unsigned int flags); 947 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len, 948 unsigned long home_node, 949 unsigned long flags); 950 asmlinkage long sys_cachestat(unsigned int fd, 951 struct cachestat_range __user *cstat_range, 952 struct cachestat __user *cstat, unsigned int flags); 953 asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags); 954 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
