linux-kernel - [ammarfaizi2-block:google/android/kernel/common/android-4.19-stable 781/9999] arch/mips/include/asm/vdso/gettimeofday.h:68:38: error: '__NR_clock

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Date:   Thu, 3 Mar 2022 12:54:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org, Alistair Delva <adelva@...gle.com>,
        Paul Burton <paul.burton@...s.com>,
        Mark Salyzyn <salyzyn@...gle.com>
Subject: [ammarfaizi2-block:google/android/kernel/common/android-4.19-stable
 781/9999] arch/mips/include/asm/vdso/gettimeofday.h:68:38: error:
 '__NR_clock_gettime64' undeclared

Hi Vincenzo,

FYI, the error/warning still remains.

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-4.19-stable
head:   90a691fca4c2525068d9908ac203e9f09e4e33c0
commit: 6b7f832e465d88fca5f3a07b85e664f962c88e0b [781/9999] BACKPORT: mips: Add support for generic vDSO
config: mips-randconfig-r016-20211028 (https://download.01.org/0day-ci/archive/20220303/202203031232.U5Jeb2G3-lkp@intel.com/config)
compiler: mipsel-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/ammarfaizi2/linux-block/commit/6b7f832e465d88fca5f3a07b85e664f962c88e0b
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-4.19-stable
        git checkout 6b7f832e465d88fca5f3a07b85e664f962c88e0b
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from lib/vdso/gettimeofday.c:26,
                    from <command-line>:
   arch/mips/include/asm/vdso/gettimeofday.h: In function 'clock_gettime_fallback':
>> arch/mips/include/asm/vdso/gettimeofday.h:68:38: error: '__NR_clock_gettime64' undeclared (first use in this function)
      68 |         register long nr asm("v0") = __NR_clock_gettime64;
         |                                      ^~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/vdso/gettimeofday.h:68:38: note: each undeclared identifier is reported only once for each function it appears in
   In file included from <command-line>:
   lib/vdso/gettimeofday.c: In function '__cvdso_clock_gettime32':
   lib/vdso/gettimeofday.c:113:20: error: invalid use of undefined type 'struct compat_timespec'
     113 |                 res->tv_sec = ts.tv_sec;
         |                    ^~
   lib/vdso/gettimeofday.c:114:20: error: invalid use of undefined type 'struct compat_timespec'
     114 |                 res->tv_nsec = ts.tv_nsec;
         |                    ^~
   arch/mips/vdso/vgettimeofday.c: At top level:
   arch/mips/vdso/vgettimeofday.c:14:5: warning: no previous prototype for '__vdso_clock_gettime' [-Wmissing-prototypes]
      14 | int __vdso_clock_gettime(clockid_t clock,
         |     ^~~~~~~~~~~~~~~~~~~~
   arch/mips/vdso/vgettimeofday.c:20:5: warning: no previous prototype for '__vdso_gettimeofday' [-Wmissing-prototypes]
      20 | int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
         |     ^~~~~~~~~~~~~~~~~~~


vim +/__NR_clock_gettime64 +68 arch/mips/include/asm/vdso/gettimeofday.h

    57	
    58	static __always_inline long clock_gettime_fallback(
    59						clockid_t _clkid,
    60						struct __kernel_timespec *_ts)
    61	{
    62		register struct __kernel_timespec *ts asm("a1") = _ts;
    63		register clockid_t clkid asm("a0") = _clkid;
    64		register long ret asm("v0");
    65	#if _MIPS_SIM == _MIPS_SIM_ABI64
    66		register long nr asm("v0") = __NR_clock_gettime;
    67	#else
  > 68		register long nr asm("v0") = __NR_clock_gettime64;
    69	#endif
    70		register long error asm("a3");
    71	
    72		asm volatile(
    73		"       syscall\n"
    74		: "=r" (ret), "=r" (error)
    75		: "r" (clkid), "r" (ts), "r" (nr)
    76		: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
    77		  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
    78	
    79		return error ? -ret : ret;
    80	}
    81	

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