[linux-next:master 8153/9440] arch/mips/vdso/vgettimeofday.c:17:9: error: implicit declaration of function '__cvdso_clock_gettime32'; did you mean '__cvdso_clock_gettime'?

[linux-next:master 8153/9440] arch/mips/vdso/vgettimeofday.c:17:9: error: implicit declaration of function '__cvdso_clock_gettime32'; did you mean '__cvdso_clock_gettime'?

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   2747d5fdab78f43210256cd52fb2718e0b3cce74
commit: bf279849ad59538a1518c667c0795ec1fe9dbd66 [8153/9440] lib/vdso: Build 32 bit specific functions in the right context
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout bf279849ad59538a1518c667c0795ec1fe9dbd66
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=mips 

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

All errors (new ones prefixed by >>):

   arch/mips/vdso/vgettimeofday.c: In function '__vdso_clock_gettime':
>> arch/mips/vdso/vgettimeofday.c:17:9: error: implicit declaration of function '__cvdso_clock_gettime32'; did you mean '__cvdso_clock_gettime'? [-Werror=implicit-function-declaration]
     return __cvdso_clock_gettime32(clock, ts);
            ^~~~~~~~~~~~~~~~~~~~~~~
            __cvdso_clock_gettime
   arch/mips/vdso/vgettimeofday.c: In function '__vdso_clock_getres':
>> arch/mips/vdso/vgettimeofday.c:39:9: error: implicit declaration of function '__cvdso_clock_getres_time32'; did you mean '__cvdso_clock_getres_common'? [-Werror=implicit-function-declaration]
     return __cvdso_clock_getres_time32(clock_id, res);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~
            __cvdso_clock_getres_common
   cc1: all warnings being treated as errors

vim +17 arch/mips/vdso/vgettimeofday.c

24640f233b4660 Vincenzo Frascino 2019-06-21  12  
24640f233b4660 Vincenzo Frascino 2019-06-21  13  #if _MIPS_SIM != _MIPS_SIM_ABI64
24640f233b4660 Vincenzo Frascino 2019-06-21  14  int __vdso_clock_gettime(clockid_t clock,
24640f233b4660 Vincenzo Frascino 2019-06-21  15  			 struct old_timespec32 *ts)
24640f233b4660 Vincenzo Frascino 2019-06-21  16  {
24640f233b4660 Vincenzo Frascino 2019-06-21 @17  	return __cvdso_clock_gettime32(clock, ts);
24640f233b4660 Vincenzo Frascino 2019-06-21  18  }
24640f233b4660 Vincenzo Frascino 2019-06-21  19  
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  20  #ifdef CONFIG_MIPS_CLOCK_VSYSCALL
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  21  
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  22  /*
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  23   * This is behind the ifdef so that we don't provide the symbol when there's no
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  24   * possibility of there being a usable clocksource, because there's nothing we
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  25   * can do without it. When libc fails the symbol lookup it should fall back on
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  26   * the standard syscall path.
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  27   */
24640f233b4660 Vincenzo Frascino 2019-06-21  28  int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
24640f233b4660 Vincenzo Frascino 2019-06-21  29  			struct timezone *tz)
24640f233b4660 Vincenzo Frascino 2019-06-21  30  {
24640f233b4660 Vincenzo Frascino 2019-06-21  31  	return __cvdso_gettimeofday(tv, tz);
24640f233b4660 Vincenzo Frascino 2019-06-21  32  }
24640f233b4660 Vincenzo Frascino 2019-06-21  33  
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  34  #endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
7d2aa4bb90f5f6 Vincenzo Frascino 2019-11-29  35  
abed3d826f2fb7 Vincenzo Frascino 2019-06-21  36  int __vdso_clock_getres(clockid_t clock_id,
abed3d826f2fb7 Vincenzo Frascino 2019-06-21  37  			struct old_timespec32 *res)
abed3d826f2fb7 Vincenzo Frascino 2019-06-21  38  {
abed3d826f2fb7 Vincenzo Frascino 2019-06-21 @39  	return __cvdso_clock_getres_time32(clock_id, res);
abed3d826f2fb7 Vincenzo Frascino 2019-06-21  40  }
abed3d826f2fb7 Vincenzo Frascino 2019-06-21  41  

:::::: The code at line 17 was first introduced by commit
:::::: 24640f233b466051ad3a5d2786d2951e43026c9d mips: Add support for generic vDSO

:::::: TO: Vincenzo Frascino <vincenzo.frascino@arm.com>
:::::: CC: Paul Burton <paul.burton@mips.com>

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

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