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

From: kernel test robot
Date: Tue Sep 28 2021 - 06:12:45 EST

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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@xxxxxxxxx>

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@xxxxxxxxxx>
:::::: CC: Will Deacon <will@xxxxxxxxxx>

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

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