arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_epoll_pwait2'

* arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_epoll_pwait2'
@ 2021-09-28 10:11 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-09-28 10:11 UTC (permalink / raw)
  To: Willem de Bruijn
  Cc: kbuild-all, linux-kernel, Andrew Morton, Linux Memory Management List

[-- Attachment #1: Type: text/plain, Size: 17977 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0513e464f9007b70b96740271a948ca5ab6e7dd7
commit: b0a0c2615f6f199a656ed8549d7dce625d77aa77 epoll: wire up syscall epoll_pwait2
date:   9 months ago
config: arm64-randconfig-r032-20210927 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b0a0c2615f6f199a656ed8549d7dce625d77aa77
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b0a0c2615f6f199a656ed8549d7dce625d77aa77
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm64 

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

All warnings (new ones prefixed by >>):

   In file included from kernel/sys_ni.c:10:
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_setup' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:39:1: note: in expansion of macro 'COND_SYSCALL'
      39 | COND_SYSCALL(io_setup);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_destroy' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:41:1: note: in expansion of macro 'COND_SYSCALL'
      41 | COND_SYSCALL(io_destroy);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_submit' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:42:1: note: in expansion of macro 'COND_SYSCALL'
      42 | COND_SYSCALL(io_submit);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_cancel' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:44:1: note: in expansion of macro 'COND_SYSCALL'
      44 | COND_SYSCALL(io_cancel);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_getevents_time32' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:45:1: note: in expansion of macro 'COND_SYSCALL'
      45 | COND_SYSCALL(io_getevents_time32);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_getevents' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:46:1: note: in expansion of macro 'COND_SYSCALL'
      46 | COND_SYSCALL(io_getevents);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_pgetevents_time32' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:47:1: note: in expansion of macro 'COND_SYSCALL'
      47 | COND_SYSCALL(io_pgetevents_time32);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_pgetevents' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:48:1: note: in expansion of macro 'COND_SYSCALL'
      48 | COND_SYSCALL(io_pgetevents);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_uring_setup' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:51:1: note: in expansion of macro 'COND_SYSCALL'
      51 | COND_SYSCALL(io_uring_setup);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_uring_enter' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:52:1: note: in expansion of macro 'COND_SYSCALL'
      52 | COND_SYSCALL(io_uring_enter);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_io_uring_register' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:53:1: note: in expansion of macro 'COND_SYSCALL'
      53 | COND_SYSCALL(io_uring_register);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_lookup_dcookie' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:60:1: note: in expansion of macro 'COND_SYSCALL'
      60 | COND_SYSCALL(lookup_dcookie);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_eventfd2' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:64:1: note: in expansion of macro 'COND_SYSCALL'
      64 | COND_SYSCALL(eventfd2);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_epoll_create1' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:67:1: note: in expansion of macro 'COND_SYSCALL'
      67 | COND_SYSCALL(epoll_create1);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_epoll_ctl' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:68:1: note: in expansion of macro 'COND_SYSCALL'
      68 | COND_SYSCALL(epoll_ctl);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_epoll_pwait' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:69:1: note: in expansion of macro 'COND_SYSCALL'
      69 | COND_SYSCALL(epoll_pwait);
         | ^~~~~~~~~~~~
>> arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_epoll_pwait2' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:71:1: note: in expansion of macro 'COND_SYSCALL'
      71 | COND_SYSCALL(epoll_pwait2);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_inotify_init1' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:77:1: note: in expansion of macro 'COND_SYSCALL'
      77 | COND_SYSCALL(inotify_init1);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_inotify_add_watch' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:78:1: note: in expansion of macro 'COND_SYSCALL'
      78 | COND_SYSCALL(inotify_add_watch);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_inotify_rm_watch' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:79:1: note: in expansion of macro 'COND_SYSCALL'
      79 | COND_SYSCALL(inotify_rm_watch);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_ioprio_set' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:84:1: note: in expansion of macro 'COND_SYSCALL'
      84 | COND_SYSCALL(ioprio_set);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_ioprio_get' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:85:1: note: in expansion of macro 'COND_SYSCALL'
      85 | COND_SYSCALL(ioprio_get);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_flock' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:88:1: note: in expansion of macro 'COND_SYSCALL'
      88 | COND_SYSCALL(flock);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_quotactl' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:101:1: note: in expansion of macro 'COND_SYSCALL'
     101 | COND_SYSCALL(quotactl);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_signalfd4' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:112:1: note: in expansion of macro 'COND_SYSCALL'
     112 | COND_SYSCALL(signalfd4);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_timerfd_create' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:122:1: note: in expansion of macro 'COND_SYSCALL'
     122 | COND_SYSCALL(timerfd_create);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_timerfd_settime' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:123:1: note: in expansion of macro 'COND_SYSCALL'
     123 | COND_SYSCALL(timerfd_settime);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_timerfd_settime32' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:124:1: note: in expansion of macro 'COND_SYSCALL'
     124 | COND_SYSCALL(timerfd_settime32);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_timerfd_gettime' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:125:1: note: in expansion of macro 'COND_SYSCALL'
     125 | COND_SYSCALL(timerfd_gettime);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_timerfd_gettime32' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:126:1: note: in expansion of macro 'COND_SYSCALL'
     126 | COND_SYSCALL(timerfd_gettime32);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_acct' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:131:1: note: in expansion of macro 'COND_SYSCALL'
     131 | COND_SYSCALL(acct);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_capget' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:134:1: note: in expansion of macro 'COND_SYSCALL'
     134 | COND_SYSCALL(capget);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_capset' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:135:1: note: in expansion of macro 'COND_SYSCALL'
     135 | COND_SYSCALL(capset);

vim +/__arm64_sys_epoll_pwait2 +76 arch/arm64/include/asm/syscall_wrapper.h

4378a7d4be30ec69 Mark Rutland  2018-07-11  50  
4378a7d4be30ec69 Mark Rutland  2018-07-11  51  #define __SYSCALL_DEFINEx(x, name, ...)						\
4378a7d4be30ec69 Mark Rutland  2018-07-11  52  	asmlinkage long __arm64_sys##name(const struct pt_regs *regs);		\
4378a7d4be30ec69 Mark Rutland  2018-07-11  53  	ALLOW_ERROR_INJECTION(__arm64_sys##name, ERRNO);			\
4378a7d4be30ec69 Mark Rutland  2018-07-11  54  	static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));		\
4378a7d4be30ec69 Mark Rutland  2018-07-11  55  	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
4378a7d4be30ec69 Mark Rutland  2018-07-11  56  	asmlinkage long __arm64_sys##name(const struct pt_regs *regs)		\
4378a7d4be30ec69 Mark Rutland  2018-07-11  57  	{									\
4378a7d4be30ec69 Mark Rutland  2018-07-11  58  		return __se_sys##name(SC_ARM64_REGS_TO_ARGS(x,__VA_ARGS__));	\
4378a7d4be30ec69 Mark Rutland  2018-07-11  59  	}									\
4378a7d4be30ec69 Mark Rutland  2018-07-11  60  	static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))		\
4378a7d4be30ec69 Mark Rutland  2018-07-11  61  	{									\
4378a7d4be30ec69 Mark Rutland  2018-07-11  62  		long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
4378a7d4be30ec69 Mark Rutland  2018-07-11  63  		__MAP(x,__SC_TEST,__VA_ARGS__);					\
4378a7d4be30ec69 Mark Rutland  2018-07-11  64  		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));		\
4378a7d4be30ec69 Mark Rutland  2018-07-11  65  		return ret;							\
4378a7d4be30ec69 Mark Rutland  2018-07-11  66  	}									\
4378a7d4be30ec69 Mark Rutland  2018-07-11  67  	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
4378a7d4be30ec69 Mark Rutland  2018-07-11  68  
4378a7d4be30ec69 Mark Rutland  2018-07-11  69  #define SYSCALL_DEFINE0(sname)							\
4378a7d4be30ec69 Mark Rutland  2018-07-11  70  	SYSCALL_METADATA(_##sname, 0);						\
0e358bd7b7ebd27e Sami Tolvanen 2019-05-24  71  	asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused);	\
4378a7d4be30ec69 Mark Rutland  2018-07-11  72  	ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO);			\
0e358bd7b7ebd27e Sami Tolvanen 2019-05-24  73  	asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused)
4378a7d4be30ec69 Mark Rutland  2018-07-11  74  
c27eccfe4d6c7481 Sami Tolvanen 2019-09-10  75  #define COND_SYSCALL(name)							\
c27eccfe4d6c7481 Sami Tolvanen 2019-09-10 @76  	asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)	\
c27eccfe4d6c7481 Sami Tolvanen 2019-09-10  77  	{									\
c27eccfe4d6c7481 Sami Tolvanen 2019-09-10  78  		return sys_ni_syscall();					\
c27eccfe4d6c7481 Sami Tolvanen 2019-09-10  79  	}
4378a7d4be30ec69 Mark Rutland  2018-07-11  80  

:::::: The code at line 76 was first introduced by commit
:::::: c27eccfe4d6c7481ce99f1c433ca043ab464080a arm64: fix function types in COND_SYSCALL

:::::: TO: Sami Tolvanen <samitolvanen@google.com>
:::::: CC: Will Deacon <will@kernel.org>

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

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