Re: [RFC PATCH v0.1 7/9] sched/umcg: add UMCG server/worker API (early RFC)

[kernel test robot <lkp@intel.com>]

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Hi Peter,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on tip/sched/core]
[also build test ERROR on tip/master]
[cannot apply to kselftest/next linus/master v5.13-rc2 next-20210521]
[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]

url:    https://github.com/0day-ci/linux/commits/Peter-Oskolkov/UMCG-early-preview-RFC-patchset/20210522-232442
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 1699949d3314e5d1956fb082e4cd4798bf6149fc
config: um-randconfig-p001-20210522 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/634e0c0b3bf5d6ede3674f9c754202b1a521ab89
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Peter-Oskolkov/UMCG-early-preview-RFC-patchset/20210522-232442
        git checkout 634e0c0b3bf5d6ede3674f9c754202b1a521ab89
        # save the attached .config to linux build tree
        make W=1 ARCH=um 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from init/main.c:21:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   init/main.c:764:20: warning: no previous prototype for 'arch_post_acpi_subsys_init' [-Wmissing-prototypes]
     764 | void __init __weak arch_post_acpi_subsys_init(void) { }
         |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~
   init/main.c:776:20: warning: no previous prototype for 'mem_encrypt_init' [-Wmissing-prototypes]
     776 | void __init __weak mem_encrypt_init(void) { }
         |                    ^~~~~~~~~~~~~~~~
   init/main.c:778:20: warning: no previous prototype for 'poking_init' [-Wmissing-prototypes]
     778 | void __init __weak poking_init(void) { }
         |                    ^~~~~~~~~~~
--
   In file included from init/do_mounts.h:5,
                    from init/do_mounts.c:29:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
--
   In file included from arch/um/kernel/syscall.c:11:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   arch/um/kernel/syscall.c:17:6: warning: no previous prototype for 'old_mmap' [-Wmissing-prototypes]
      17 | long old_mmap(unsigned long addr, unsigned long len,
         |      ^~~~~~~~
--
   In file included from arch/x86/um/tls_32.c:8:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   arch/x86/um/tls_32.c:23:5: warning: no previous prototype for 'do_set_thread_area' [-Wmissing-prototypes]
      23 | int do_set_thread_area(struct user_desc *info)
         |     ^~~~~~~~~~~~~~~~~~
   arch/x86/um/tls_32.c:39:5: warning: no previous prototype for 'do_get_thread_area' [-Wmissing-prototypes]
      39 | int do_get_thread_area(struct user_desc *info)
         |     ^~~~~~~~~~~~~~~~~~
   arch/x86/um/tls_32.c:187:5: warning: no previous prototype for 'arch_switch_tls' [-Wmissing-prototypes]
     187 | int arch_switch_tls(struct task_struct *to)
         |     ^~~~~~~~~~~~~~~
--
   In file included from kernel/fork.c:54:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   kernel/fork.c:162:13: warning: no previous prototype for 'arch_release_task_struct' [-Wmissing-prototypes]
     162 | void __weak arch_release_task_struct(struct task_struct *tsk)
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   kernel/fork.c:752:20: warning: no previous prototype for 'arch_task_cache_init' [-Wmissing-prototypes]
     752 | void __init __weak arch_task_cache_init(void) { }
         |                    ^~~~~~~~~~~~~~~~~~~~
   kernel/fork.c:842:12: warning: no previous prototype for 'arch_dup_task_struct' [-Wmissing-prototypes]
     842 | int __weak arch_dup_task_struct(struct task_struct *dst,
         |            ^~~~~~~~~~~~~~~~~~~~
--
   In file included from kernel/exit.c:42:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   kernel/exit.c:1811:13: warning: no previous prototype for 'abort' [-Wmissing-prototypes]
    1811 | __weak void abort(void)
         |             ^~~~~
--
   In file included from fs/d_path.c:2:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   fs/d_path.c:315:7: warning: no previous prototype for 'simple_dname' [-Wmissing-prototypes]
     315 | char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
         |       ^~~~~~~~~~~~
--
   In file included from drivers/char/random.c:335:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   drivers/char/random.c:2272:6: warning: no previous prototype for 'add_hwgenerator_randomness' [-Wmissing-prototypes]
    2272 | void add_hwgenerator_randomness(const char *buffer, size_t count,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from net/socket.c:78:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   net/socket.c: In function '__sys_getsockopt':
   net/socket.c:2143:6: warning: variable 'max_optlen' set but not used [-Wunused-but-set-variable]
    2143 |  int max_optlen;
         |      ^~~~~~~~~~
--
   In file included from kernel/printk/printk.c:36:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   kernel/printk/printk.c:175:5: warning: no previous prototype for 'devkmsg_sysctl_set_loglvl' [-Wmissing-prototypes]
     175 | int devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from kernel/sched/sched.h:67,
                    from kernel/sched/core.c:13:
>> include/linux/syscalls.h:1062:57: error: unknown type name 'flags'
    1062 | asmlinkage long umcg_create_group(u32 api_version, u64, flags);
         |                                                         ^~~~~
   kernel/sched/core.c: In function 'ttwu_stat':
   kernel/sched/core.c:3274:13: warning: variable 'rq' set but not used [-Wunused-but-set-variable]
    3274 |  struct rq *rq;
         |             ^~
..

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for LOCKDEP
   Depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && (FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86)
   Selected by
   - DEBUG_LOCK_ALLOC && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT


vim +/flags +1062 include/linux/syscalls.h

   903	
   904	/* mm/, CONFIG_MMU only */
   905	asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
   906	asmlinkage long sys_swapoff(const char __user *specialfile);
   907	asmlinkage long sys_mprotect(unsigned long start, size_t len,
   908					unsigned long prot);
   909	asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
   910	asmlinkage long sys_mlock(unsigned long start, size_t len);
   911	asmlinkage long sys_munlock(unsigned long start, size_t len);
   912	asmlinkage long sys_mlockall(int flags);
   913	asmlinkage long sys_munlockall(void);
   914	asmlinkage long sys_mincore(unsigned long start, size_t len,
   915					unsigned char __user * vec);
   916	asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
   917	asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
   918				size_t vlen, int behavior, unsigned int flags);
   919	asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
   920				unsigned long prot, unsigned long pgoff,
   921				unsigned long flags);
   922	asmlinkage long sys_mbind(unsigned long start, unsigned long len,
   923					unsigned long mode,
   924					const unsigned long __user *nmask,
   925					unsigned long maxnode,
   926					unsigned flags);
   927	asmlinkage long sys_get_mempolicy(int __user *policy,
   928					unsigned long __user *nmask,
   929					unsigned long maxnode,
   930					unsigned long addr, unsigned long flags);
   931	asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
   932					unsigned long maxnode);
   933	asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
   934					const unsigned long __user *from,
   935					const unsigned long __user *to);
   936	asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
   937					const void __user * __user *pages,
   938					const int __user *nodes,
   939					int __user *status,
   940					int flags);
   941	
   942	asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t  pid, int sig,
   943			siginfo_t __user *uinfo);
   944	asmlinkage long sys_perf_event_open(
   945			struct perf_event_attr __user *attr_uptr,
   946			pid_t pid, int cpu, int group_fd, unsigned long flags);
   947	asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
   948	asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
   949				     unsigned int vlen, unsigned flags,
   950				     struct __kernel_timespec __user *timeout);
   951	asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
   952				     unsigned int vlen, unsigned flags,
   953				     struct old_timespec32 __user *timeout);
   954	
   955	asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
   956					int options, struct rusage __user *ru);
   957	asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
   958					const struct rlimit64 __user *new_rlim,
   959					struct rlimit64 __user *old_rlim);
   960	asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
   961	asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
   962					  u64 mask, int fd,
   963					  const char  __user *pathname);
   964	asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
   965					      struct file_handle __user *handle,
   966					      int __user *mnt_id, int flag);
   967	asmlinkage long sys_open_by_handle_at(int mountdirfd,
   968					      struct file_handle __user *handle,
   969					      int flags);
   970	asmlinkage long sys_clock_adjtime(clockid_t which_clock,
   971					struct __kernel_timex __user *tx);
   972	asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
   973					struct old_timex32 __user *tx);
   974	asmlinkage long sys_syncfs(int fd);
   975	asmlinkage long sys_setns(int fd, int nstype);
   976	asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
   977	asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
   978				     unsigned int vlen, unsigned flags);
   979	asmlinkage long sys_process_vm_readv(pid_t pid,
   980					     const struct iovec __user *lvec,
   981					     unsigned long liovcnt,
   982					     const struct iovec __user *rvec,
   983					     unsigned long riovcnt,
   984					     unsigned long flags);
   985	asmlinkage long sys_process_vm_writev(pid_t pid,
   986					      const struct iovec __user *lvec,
   987					      unsigned long liovcnt,
   988					      const struct iovec __user *rvec,
   989					      unsigned long riovcnt,
   990					      unsigned long flags);
   991	asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
   992				 unsigned long idx1, unsigned long idx2);
   993	asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
   994	asmlinkage long sys_sched_setattr(pid_t pid,
   995						struct sched_attr __user *attr,
   996						unsigned int flags);
   997	asmlinkage long sys_sched_getattr(pid_t pid,
   998						struct sched_attr __user *attr,
   999						unsigned int size,
  1000						unsigned int flags);
  1001	asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
  1002				      int newdfd, const char __user *newname,
  1003				      unsigned int flags);
  1004	asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
  1005				    void __user *uargs);
  1006	asmlinkage long sys_getrandom(char __user *buf, size_t count,
  1007				      unsigned int flags);
  1008	asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
  1009	asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
  1010	asmlinkage long sys_execveat(int dfd, const char __user *filename,
  1011				const char __user *const __user *argv,
  1012				const char __user *const __user *envp, int flags);
  1013	asmlinkage long sys_userfaultfd(int flags);
  1014	asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
  1015	asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
  1016	asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
  1017					    int fd_out, loff_t __user *off_out,
  1018					    size_t len, unsigned int flags);
  1019	asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
  1020				    unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
  1021				    rwf_t flags);
  1022	asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
  1023				    unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
  1024				    rwf_t flags);
  1025	asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
  1026					  unsigned long prot, int pkey);
  1027	asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
  1028	asmlinkage long sys_pkey_free(int pkey);
  1029	asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
  1030				  unsigned mask, struct statx __user *buffer);
  1031	asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
  1032				 int flags, uint32_t sig);
  1033	asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
  1034	asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
  1035				       int to_dfd, const char __user *to_path,
  1036				       unsigned int ms_flags);
  1037	asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
  1038					  unsigned int flags,
  1039					  struct mount_attr __user *uattr, size_t usize);
  1040	asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
  1041	asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
  1042				     const void __user *value, int aux);
  1043	asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
  1044	asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
  1045	asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
  1046					       siginfo_t __user *info,
  1047					       unsigned int flags);
  1048	asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
  1049	asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
  1050			size_t size, __u32 flags);
  1051	asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
  1052			const void __user *rule_attr, __u32 flags);
  1053	asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
  1054	asmlinkage long umcg_api_version(u32 api_version, u32 flags);
  1055	asmlinkage long umcg_register_task(u32 api_version, u32 flags, u32 group_id,
  1056						struct umcg_task __user *umcg_task);
  1057	asmlinkage long umcg_unregister_task(u32 flags);
  1058	asmlinkage long umcg_wait(u32 flags, const struct __kernel_timespec __user *timeout);
  1059	asmlinkage long umcg_wake(u32 flags, u32 next_tid);
  1060	asmlinkage long umcg_swap(u32 wake_flags, u32 next_tid, u32 wait_flags,
  1061					const struct __kernel_timespec __user *timeout);
> 1062	asmlinkage long umcg_create_group(u32 api_version, u64, flags);
  1063	asmlinkage long umcg_destroy_group(u32 group_id);
  1064	asmlinkage long umcg_poll_worker(u32 flags, struct umcg_task __user **ut);
  1065	asmlinkage long umcg_run_worker(u32 flags, u32 worker_tid,
  1066			struct umcg_task __user **ut);
  1067	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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