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Date: Thu, 14 Jan 2021 11:40:38 -0500
From: Willem de Bruijn <willemb@...gle.com>
To: kernel test robot <lkp@...el.com>
Cc: kbuild-all@...ts.01.org,
linux-kernel <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no
previous prototype for '__arm64_compat_sys_epoll_pwait2'
On Thu, Jan 14, 2021 at 3:05 AM kernel test robot <lkp@...el.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 65f0d2414b7079556fbbcc070b3d1c9f9587606d
> commit: b0a0c2615f6f199a656ed8549d7dce625d77aa77 epoll: wire up syscall epoll_pwait2
> date: 4 weeks ago
> config: arm64-randconfig-r005-20210113 (attached as .config)
> compiler: aarch64-linux-gcc (GCC) 9.3.0
> 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-9.3.0 make.cross ARCH=arm64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All warnings (new ones prefixed by >>):
>
> | ^~~~~~~~~~~~
> 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:76:25: 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:76:25: 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:76:25: 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:41:25: warning: no previous prototype for '__arm64_compat_sys_io_pgetevents_time32' [-Wmissing-prototypes]
> 41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
> | ^~~~~~~~~~~~~~~~~~~
> kernel/sys_ni.c:49:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
> 49 | COND_SYSCALL_COMPAT(io_pgetevents_time32);
> | ^~~~~~~~~~~~~~~~~~~
> arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_io_pgetevents' [-Wmissing-prototypes]
> 41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
> | ^~~~~~~~~~~~~~~~~~~
> kernel/sys_ni.c:50:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
> 50 | COND_SYSCALL_COMPAT(io_pgetevents);
> | ^~~~~~~~~~~~~~~~~~~
> arch/arm64/include/asm/syscall_wrapper.h:76:25: 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:76:25: 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:76:25: 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:76:25: 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:41:25: warning: no previous prototype for '__arm64_compat_sys_lookup_dcookie' [-Wmissing-prototypes]
> 41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
> | ^~~~~~~~~~~~~~~~~~~
> kernel/sys_ni.c:61:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
> 61 | COND_SYSCALL_COMPAT(lookup_dcookie);
> | ^~~~~~~~~~~~~~~~~~~
> arch/arm64/include/asm/syscall_wrapper.h:76:25: 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:76:25: 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:76:25: 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:76:25: 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:41:25: warning: no previous prototype for '__arm64_compat_sys_epoll_pwait' [-Wmissing-prototypes]
> 41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
> | ^~~~~~~~~~~~~~~~~~~
> kernel/sys_ni.c:70:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
> 70 | COND_SYSCALL_COMPAT(epoll_pwait);
> | ^~~~~~~~~~~~~~~~~~~
> arch/arm64/include/asm/syscall_wrapper.h:76:25: 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:41:25: warning: no previous prototype for '__arm64_compat_sys_epoll_pwait2' [-Wmissing-prototypes]
> 41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
> | ^~~~~~~~~~~~~~~~~~~
> kernel/sys_ni.c:72:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
> 72 | COND_SYSCALL_COMPAT(epoll_pwait2);
> | ^~~~~~~~~~~~~~~~~~~
> arch/arm64/include/asm/syscall_wrapper.h:76:25: 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:76:25: 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:76:25: 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:76:25: 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:76:25: 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:76:25: 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:76:25: 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:76:25: 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:41:25: warning: no previous prototype for '__arm64_compat_sys_signalfd4' [-Wmissing-prototypes]
> 41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
> | ^~~~~~~~~~~~~~~~~~~
> kernel/sys_ni.c:113:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
> 113 | COND_SYSCALL_COMPAT(signalfd4);
> | ^~~~~~~~~~~~~~~~~~~
> arch/arm64/include/asm/syscall_wrapper.h:76:25: 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:76:25: 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:76:25: 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:76:25: 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:76:25: 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:76:25: 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:76:25: 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);
>
>
> vim +/__arm64_compat_sys_epoll_pwait2 +41 arch/arm64/include/asm/syscall_wrapper.h
>
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 19
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 20 #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 21 asmlinkage long __arm64_compat_sys##name(const struct pt_regs *regs); \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 22 ALLOW_ERROR_INJECTION(__arm64_compat_sys##name, ERRNO); \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 23 static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 24 static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 25 asmlinkage long __arm64_compat_sys##name(const struct pt_regs *regs) \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 26 { \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 27 return __se_compat_sys##name(SC_ARM64_REGS_TO_ARGS(x,__VA_ARGS__)); \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 28 } \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 29 static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 30 { \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 31 return __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 32 } \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 33 static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 34
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 35 #define COMPAT_SYSCALL_DEFINE0(sname) \
> 0e358bd7b7ebd27e Sami Tolvanen 2019-05-24 36 asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused); \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 37 ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO); \
> 0e358bd7b7ebd27e Sami Tolvanen 2019-05-24 38 asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused)
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 39
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 40 #define COND_SYSCALL_COMPAT(name) \
> c27eccfe4d6c7481 Sami Tolvanen 2019-09-10 @41 asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
> c27eccfe4d6c7481 Sami Tolvanen 2019-09-10 42 { \
> c27eccfe4d6c7481 Sami Tolvanen 2019-09-10 43 return sys_ni_syscall(); \
> c27eccfe4d6c7481 Sami Tolvanen 2019-09-10 44 }
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 45
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 46 #define COMPAT_SYS_NI(name) \
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 47 SYSCALL_ALIAS(__arm64_compat_sys_##name, sys_ni_posix_timers);
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 48
> 4378a7d4be30ec69 Mark Rutland 2018-07-11 49 #endif /* CONFIG_COMPAT */
> 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 41 was first introduced by commit
> :::::: c27eccfe4d6c7481ce99f1c433ca043ab464080a arm64: fix function types in COND_SYSCALL
>
> :::::: TO: Sami Tolvanen <samitolvanen@...gle.com>
> :::::: CC: Will Deacon <will@...nel.org>
As the report notes, the warnings in general are not new with this
commit. This commit only adds one more instance, for epoll_pwait2.
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