arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_process_madvise'

From: kernel test robot
Date: Sat Mar 27 2021 - 18:46:03 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0f4498cef9f5cd18d7c6639a2a902ec1edc5be4e
commit: ecb8ac8b1f146915aa6b96449b66dd48984caacc mm/madvise: introduce process_madvise() syscall: an external memory hinting API
date: 5 months ago
config: arm64-randconfig-r011-20210328 (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=ecb8ac8b1f146915aa6b96449b66dd48984caacc
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ecb8ac8b1f146915aa6b96449b66dd48984caacc
# 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@xxxxxxxxx>

All warnings (new ones prefixed by >>):

| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:254:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
254 | COND_SYSCALL_COMPAT(recvmsg);
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_mremap' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:259:1: note: in expansion of macro 'COND_SYSCALL'
259 | COND_SYSCALL(mremap);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_add_key' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:262:1: note: in expansion of macro 'COND_SYSCALL'
262 | COND_SYSCALL(add_key);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_request_key' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:263:1: note: in expansion of macro 'COND_SYSCALL'
263 | COND_SYSCALL(request_key);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_keyctl' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:264:1: note: in expansion of macro 'COND_SYSCALL'
264 | COND_SYSCALL(keyctl);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_keyctl' [-Wmissing-prototypes]
41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:265:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
265 | COND_SYSCALL_COMPAT(keyctl);
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_fadvise64_64' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:270:1: note: in expansion of macro 'COND_SYSCALL'
270 | COND_SYSCALL(fadvise64_64);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_swapon' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:273:1: note: in expansion of macro 'COND_SYSCALL'
273 | COND_SYSCALL(swapon);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_swapoff' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:274:1: note: in expansion of macro 'COND_SYSCALL'
274 | COND_SYSCALL(swapoff);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_mprotect' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:275:1: note: in expansion of macro 'COND_SYSCALL'
275 | COND_SYSCALL(mprotect);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_msync' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:276:1: note: in expansion of macro 'COND_SYSCALL'
276 | COND_SYSCALL(msync);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_mlock' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:277:1: note: in expansion of macro 'COND_SYSCALL'
277 | COND_SYSCALL(mlock);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_munlock' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:278:1: note: in expansion of macro 'COND_SYSCALL'
278 | COND_SYSCALL(munlock);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_mlockall' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:279:1: note: in expansion of macro 'COND_SYSCALL'
279 | COND_SYSCALL(mlockall);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_munlockall' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:280:1: note: in expansion of macro 'COND_SYSCALL'
280 | COND_SYSCALL(munlockall);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_mincore' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:281:1: note: in expansion of macro 'COND_SYSCALL'
281 | COND_SYSCALL(mincore);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_madvise' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:282:1: note: in expansion of macro 'COND_SYSCALL'
282 | COND_SYSCALL(madvise);
| ^~~~~~~~~~~~
>> arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_process_madvise' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:283:1: note: in expansion of macro 'COND_SYSCALL'
283 | COND_SYSCALL(process_madvise);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_remap_file_pages' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:284:1: note: in expansion of macro 'COND_SYSCALL'
284 | COND_SYSCALL(remap_file_pages);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_mbind' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:285:1: note: in expansion of macro 'COND_SYSCALL'
285 | COND_SYSCALL(mbind);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_mbind' [-Wmissing-prototypes]
41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:286:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
286 | COND_SYSCALL_COMPAT(mbind);
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_get_mempolicy' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:287:1: note: in expansion of macro 'COND_SYSCALL'
287 | COND_SYSCALL(get_mempolicy);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_get_mempolicy' [-Wmissing-prototypes]
41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:288:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
288 | COND_SYSCALL_COMPAT(get_mempolicy);
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_set_mempolicy' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:289:1: note: in expansion of macro 'COND_SYSCALL'
289 | COND_SYSCALL(set_mempolicy);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_set_mempolicy' [-Wmissing-prototypes]
41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:290:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
290 | COND_SYSCALL_COMPAT(set_mempolicy);
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_migrate_pages' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:291:1: note: in expansion of macro 'COND_SYSCALL'
291 | COND_SYSCALL(migrate_pages);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_migrate_pages' [-Wmissing-prototypes]
41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:292:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
292 | COND_SYSCALL_COMPAT(migrate_pages);
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_move_pages' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:293:1: note: in expansion of macro 'COND_SYSCALL'
293 | COND_SYSCALL(move_pages);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_move_pages' [-Wmissing-prototypes]
41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:294:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
294 | COND_SYSCALL_COMPAT(move_pages);
| ^~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_perf_event_open' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:296:1: note: in expansion of macro 'COND_SYSCALL'
296 | COND_SYSCALL(perf_event_open);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_accept4' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:297:1: note: in expansion of macro 'COND_SYSCALL'
297 | COND_SYSCALL(accept4);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_recvmmsg' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:298:1: note: in expansion of macro 'COND_SYSCALL'
298 | COND_SYSCALL(recvmmsg);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:76:25: warning: no previous prototype for '__arm64_sys_recvmmsg_time32' [-Wmissing-prototypes]
76 | asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~
kernel/sys_ni.c:299:1: note: in expansion of macro 'COND_SYSCALL'
299 | COND_SYSCALL(recvmmsg_time32);
| ^~~~~~~~~~~~
arch/arm64/include/asm/syscall_wrapper.h:41:25: warning: no previous prototype for '__arm64_compat_sys_recvmmsg_time32' [-Wmissing-prototypes]
41 | asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs) \
| ^~~~~~~~~~~~~~~~~~~
kernel/sys_ni.c:300:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
300 | COND_SYSCALL_COMPAT(recvmmsg_time32);

vim +/__arm64_sys_process_madvise +76 arch/arm64/include/asm/syscall_wrapper.h

4378a7d4be30ec Mark Rutland 2018-07-11 50
4378a7d4be30ec Mark Rutland 2018-07-11 51 #define __SYSCALL_DEFINEx(x, name, ...) \
4378a7d4be30ec Mark Rutland 2018-07-11 52 asmlinkage long __arm64_sys##name(const struct pt_regs *regs); \
4378a7d4be30ec Mark Rutland 2018-07-11 53 ALLOW_ERROR_INJECTION(__arm64_sys##name, ERRNO); \
4378a7d4be30ec Mark Rutland 2018-07-11 54 static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
4378a7d4be30ec Mark Rutland 2018-07-11 55 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
4378a7d4be30ec Mark Rutland 2018-07-11 56 asmlinkage long __arm64_sys##name(const struct pt_regs *regs) \
4378a7d4be30ec Mark Rutland 2018-07-11 57 { \
4378a7d4be30ec Mark Rutland 2018-07-11 58 return __se_sys##name(SC_ARM64_REGS_TO_ARGS(x,__VA_ARGS__)); \
4378a7d4be30ec Mark Rutland 2018-07-11 59 } \
4378a7d4be30ec Mark Rutland 2018-07-11 60 static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
4378a7d4be30ec Mark Rutland 2018-07-11 61 { \
4378a7d4be30ec Mark Rutland 2018-07-11 62 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \
4378a7d4be30ec Mark Rutland 2018-07-11 63 __MAP(x,__SC_TEST,__VA_ARGS__); \
4378a7d4be30ec Mark Rutland 2018-07-11 64 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
4378a7d4be30ec Mark Rutland 2018-07-11 65 return ret; \
4378a7d4be30ec Mark Rutland 2018-07-11 66 } \
4378a7d4be30ec Mark Rutland 2018-07-11 67 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
4378a7d4be30ec Mark Rutland 2018-07-11 68
4378a7d4be30ec Mark Rutland 2018-07-11 69 #define SYSCALL_DEFINE0(sname) \
4378a7d4be30ec Mark Rutland 2018-07-11 70 SYSCALL_METADATA(_##sname, 0); \
0e358bd7b7ebd2 Sami Tolvanen 2019-05-24 71 asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused); \
4378a7d4be30ec Mark Rutland 2018-07-11 72 ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO); \
0e358bd7b7ebd2 Sami Tolvanen 2019-05-24 73 asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused)
4378a7d4be30ec Mark Rutland 2018-07-11 74
c27eccfe4d6c74 Sami Tolvanen 2019-09-10 75 #define COND_SYSCALL(name) \
c27eccfe4d6c74 Sami Tolvanen 2019-09-10 @76 asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs) \
c27eccfe4d6c74 Sami Tolvanen 2019-09-10 77 { \
c27eccfe4d6c74 Sami Tolvanen 2019-09-10 78 return sys_ni_syscall(); \
c27eccfe4d6c74 Sami Tolvanen 2019-09-10 79 }
4378a7d4be30ec 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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Next message: Kuppuswamy Sathyanarayanan: "[PATCH v2 1/1] x86/tdx: Handle MWAIT, MONITOR and WBINVD"
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