Re: [PATCH v0.8 3/6] sched/umcg: implement UMCG syscalls

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Hi Peter,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on 8ea9183db4ad8afbcb7089a77c23eaf965b0cacd]

url:    https://github.com/0day-ci/linux/commits/Peter-Oskolkov/sched-mm-x86-uaccess-implement-User-Managed-Concurrency-Groups/20211105-035945
base:   8ea9183db4ad8afbcb7089a77c23eaf965b0cacd
config: arm64-defconfig (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://github.com/0day-ci/linux/commit/93e6110356346b226e3a41044aafe3d3b0906d10
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Peter-Oskolkov/sched-mm-x86-uaccess-implement-User-Managed-Concurrency-Groups/20211105-035945
        git checkout 93e6110356346b226e3a41044aafe3d3b0906d10
        # 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 >>):

         |                                ^~~~~~~~~~~~~~~~~~~
   kernel/sys_ni.c:249:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
     249 | COND_SYSCALL_COMPAT(getsockopt);
         | ^~~~~~~~~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_sendto' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:250:1: note: in expansion of macro 'COND_SYSCALL'
     250 | COND_SYSCALL(sendto);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_shutdown' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:251:1: note: in expansion of macro 'COND_SYSCALL'
     251 | COND_SYSCALL(shutdown);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_recvfrom' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:252:1: note: in expansion of macro 'COND_SYSCALL'
     252 | COND_SYSCALL(recvfrom);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:41:32: warning: no previous prototype for '__arm64_compat_sys_recvfrom' [-Wmissing-prototypes]
      41 |         asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs)    \
         |                                ^~~~~~~~~~~~~~~~~~~
   kernel/sys_ni.c:253:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
     253 | COND_SYSCALL_COMPAT(recvfrom);
         | ^~~~~~~~~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_sendmsg' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:254:1: note: in expansion of macro 'COND_SYSCALL'
     254 | COND_SYSCALL(sendmsg);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:41:32: warning: no previous prototype for '__arm64_compat_sys_sendmsg' [-Wmissing-prototypes]
      41 |         asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs)    \
         |                                ^~~~~~~~~~~~~~~~~~~
   kernel/sys_ni.c:255:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
     255 | COND_SYSCALL_COMPAT(sendmsg);
         | ^~~~~~~~~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_recvmsg' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:256:1: note: in expansion of macro 'COND_SYSCALL'
     256 | COND_SYSCALL(recvmsg);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:41:32: warning: no previous prototype for '__arm64_compat_sys_recvmsg' [-Wmissing-prototypes]
      41 |         asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs)    \
         |                                ^~~~~~~~~~~~~~~~~~~
   kernel/sys_ni.c:257:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
     257 | COND_SYSCALL_COMPAT(recvmsg);
         | ^~~~~~~~~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:262:1: note: in expansion of macro 'COND_SYSCALL'
     262 | COND_SYSCALL(mremap);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:265:1: note: in expansion of macro 'COND_SYSCALL'
     265 | COND_SYSCALL(add_key);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:266:1: note: in expansion of macro 'COND_SYSCALL'
     266 | COND_SYSCALL(request_key);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:267:1: note: in expansion of macro 'COND_SYSCALL'
     267 | COND_SYSCALL(keyctl);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:41:32: 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:268:1: note: in expansion of macro 'COND_SYSCALL_COMPAT'
     268 | COND_SYSCALL_COMPAT(keyctl);
         | ^~~~~~~~~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_landlock_create_ruleset' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:271:1: note: in expansion of macro 'COND_SYSCALL'
     271 | COND_SYSCALL(landlock_create_ruleset);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_landlock_add_rule' [-Wmissing-prototypes]
      76 |         asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)   \
         |                                ^~~~~~~~~~~~
   kernel/sys_ni.c:272:1: note: in expansion of macro 'COND_SYSCALL'
     272 | COND_SYSCALL(landlock_add_rule);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_landlock_restrict_self' [-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(landlock_restrict_self);
         | ^~~~~~~~~~~~
>> arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_umcg_ctl' [-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(umcg_ctl);
         | ^~~~~~~~~~~~
>> arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_umcg_wait' [-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(umcg_wait);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:282:1: note: in expansion of macro 'COND_SYSCALL'
     282 | COND_SYSCALL(fadvise64_64);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:285:1: note: in expansion of macro 'COND_SYSCALL'
     285 | COND_SYSCALL(swapon);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:286:1: note: in expansion of macro 'COND_SYSCALL'
     286 | COND_SYSCALL(swapoff);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:287:1: note: in expansion of macro 'COND_SYSCALL'
     287 | COND_SYSCALL(mprotect);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:288:1: note: in expansion of macro 'COND_SYSCALL'
     288 | COND_SYSCALL(msync);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:289:1: note: in expansion of macro 'COND_SYSCALL'
     289 | COND_SYSCALL(mlock);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:290:1: note: in expansion of macro 'COND_SYSCALL'
     290 | COND_SYSCALL(munlock);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:291:1: note: in expansion of macro 'COND_SYSCALL'
     291 | COND_SYSCALL(mlockall);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:292:1: note: in expansion of macro 'COND_SYSCALL'
     292 | COND_SYSCALL(munlockall);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:293:1: note: in expansion of macro 'COND_SYSCALL'
     293 | COND_SYSCALL(mincore);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:294:1: note: in expansion of macro 'COND_SYSCALL'
     294 | COND_SYSCALL(madvise);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:295:1: note: in expansion of macro 'COND_SYSCALL'
     295 | COND_SYSCALL(process_madvise);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: warning: no previous prototype for '__arm64_sys_process_mrelease' [-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(process_mrelease);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:297:1: note: in expansion of macro 'COND_SYSCALL'
     297 | COND_SYSCALL(remap_file_pages);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:298:1: note: in expansion of macro 'COND_SYSCALL'
     298 | COND_SYSCALL(mbind);
         | ^~~~~~~~~~~~
   arch/arm64/include/asm/syscall_wrapper.h:76:32: 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:299:1: note: in expansion of macro 'COND_SYSCALL'
     299 | COND_SYSCALL(get_mempolicy);


vim +/__arm64_sys_umcg_ctl +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  

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

Attachment: .config.gz
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