Re: [PATCH v2 08/11] mm/mempolicy: add set_mempolicy2 syscall

From: kernel test robot
Date: Sat Dec 09 2023 - 13:25:18 EST

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Next in thread: Gregory Price: "[PATCH v2 09/11] mm/mempolicy: add get_mempolicy2 syscall"
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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

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Next message: Pavel Machek: "Re: Can we please have a major fork of Linux into a modern and legacy versions ?"
Previous message: kernel test robot: "Re: [net-next PATCH 2/2] net: phy: at803x: add LED support for qca808x"
In reply to: kernel test robot: "Re: [PATCH v2 08/11] mm/mempolicy: add set_mempolicy2 syscall"
Next in thread: Gregory Price: "[PATCH v2 09/11] mm/mempolicy: add get_mempolicy2 syscall"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]