tree:   https://github.com/hnaz/linux-mm master
head:   5d9ee416b5701096536c7a63c04dbe25012baa9e
commit: 133f884fbe299145671d583f255f71b63d9ad63f [89/340] mm: introduce fault_signal_pending()
config: xtensa-randconfig-a001-20200309 (attached as .config)
compiler: xtensa-linux-gcc (GCC) 9.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 133f884fbe299145671d583f255f71b63d9ad63f
        # save the attached .config to linux build tree
        GCC_VERSION=9.2.0 make.cross ARCH=xtensa 

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

All warnings (new ones prefixed by >>):

   In file included from arch/xtensa/include/asm/processor.h:15,
                    from arch/xtensa/kernel/asm-offsets.c:15:
   include/linux/sched/signal.h: In function 'fault_signal_pending':
   include/linux/sched/signal.h:381:33: error: 'VM_FAULT_RETRY' undeclared (first use in this function)
     381 |  return unlikely((fault_flags & VM_FAULT_RETRY) &&
         |                                 ^~~~~~~~~~~~~~
   include/linux/compiler.h:33:34: note: in definition of macro '__branch_check__'
      33 |    ______r = __builtin_expect(!!(x), expect); \
         |                                  ^
>> include/linux/sched/signal.h:381:9: note: in expansion of macro 'unlikely'
     381 |  return unlikely((fault_flags & VM_FAULT_RETRY) &&
         |         ^~~~~~~~
   include/linux/sched/signal.h:381:33: note: each undeclared identifier is reported only once for each function it appears in
     381 |  return unlikely((fault_flags & VM_FAULT_RETRY) &&
         |                                 ^~~~~~~~~~~~~~
   include/linux/compiler.h:33:34: note: in definition of macro '__branch_check__'
      33 |    ______r = __builtin_expect(!!(x), expect); \
         |                                  ^
>> include/linux/sched/signal.h:381:9: note: in expansion of macro 'unlikely'
     381 |  return unlikely((fault_flags & VM_FAULT_RETRY) &&
         |         ^~~~~~~~
   make[2]: *** [scripts/Makefile.build:101: arch/xtensa/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1113: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:180: sub-make] Error 2
   11 real  4 user  7 sys  99.61% cpu 	make prepare

vim +/unlikely +381 include/linux/sched/signal.h

   371	
   372	/*
   373	 * This should only be used in fault handlers to decide whether we
   374	 * should stop the current fault routine to handle the signals
   375	 * instead, especially with the case where we've got interrupted with
   376	 * a VM_FAULT_RETRY.
   377	 */
   378	static inline bool fault_signal_pending(unsigned int fault_flags,
   379						struct pt_regs *regs)
   380	{
 > 381		return unlikely((fault_flags & VM_FAULT_RETRY) &&
   382				fatal_signal_pending(current));
   383	}
   384	

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