tree:   https://android.googlesource.com/kernel/common android-4.19
head:   a1728ecf5aed447128ca7143f29d8b0f5f6263c5
commit: f3a6a2a287f2413be23e2caeb8462d3659749582 [42/106] UPSTREAM: mips: vdso: Fix source path
config: mips-ip32_defconfig (attached as .config)
compiler: mips64-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout f3a6a2a287f2413be23e2caeb8462d3659749582
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=mips 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.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:70:31: error: '__NR_clock_gettime64' undeclared (first use in this function)
      70 |  register long nr asm("v0") = __NR_clock_gettime64;
         |                               ^~~~~~~~~~~~~~~~~~~~
   arch/mips/include/asm/vdso/gettimeofday.h:70:31: note: each undeclared identifier is reported only once for each function it appears in
   arch/mips/include/asm/vdso/gettimeofday.h: In function 'clock_getres_fallback':
>> arch/mips/include/asm/vdso/gettimeofday.h:94:31: error: '__NR_clock_getres_time64' undeclared (first use in this function)
      94 |  register long nr asm("v0") = __NR_clock_getres_time64;
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~
   In file included from <command-line>:
   lib/vdso/gettimeofday.c: In function '__cvdso_clock_gettime32':
   lib/vdso/gettimeofday.c:113:6: error: dereferencing pointer to incomplete type 'struct compat_timespec'
     113 |   res->tv_sec = ts.tv_sec;
         |      ^~

vim +/__NR_clock_getres_time64 +94 arch/mips/include/asm/vdso/gettimeofday.h

6b7f832e465d88f Vincenzo Frascino 2019-06-21   83  
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   84  static __always_inline int clock_getres_fallback(
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   85  					clockid_t _clkid,
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   86  					struct __kernel_timespec *_ts)
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   87  {
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   88  	register struct __kernel_timespec *ts asm("a1") = _ts;
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   89  	register clockid_t clkid asm("a0") = _clkid;
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   90  	register long ret asm("v0");
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   91  #if _MIPS_SIM == _MIPS_SIM_ABI64
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   92  	register long nr asm("v0") = __NR_clock_getres;
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   93  #else
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  @94  	register long nr asm("v0") = __NR_clock_getres_time64;
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   95  #endif
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   96  	register long error asm("a3");
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   97  
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   98  	asm volatile(
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21   99  	"       syscall\n"
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  100  	: "=r" (ret), "=r" (error)
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  101  	: "r" (clkid), "r" (ts), "r" (nr)
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  102  	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  103  	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  104  
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  105  	return error ? -ret : ret;
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  106  }
23dea1cf7ed3846 Vincenzo Frascino 2019-06-21  107  

:::::: The code at line 94 was first introduced by commit
:::::: 23dea1cf7ed3846719448e74feeb56c28e3a9019 UPSTREAM: mips: Add clock_getres entry point

:::::: TO: Vincenzo Frascino <vincenzo.frascino@arm.com>
:::::: CC: Alistair Delva <adelva@google.com>

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