[peterz-queue:master 7/10] include/linux/compiler.h:226:2: error: implicit declaration of function 'kcsan_check_atomic_read'

[peterz-queue:master 7/10] include/linux/compiler.h:226:2: error: implicit declaration of function 'kcsan_check_atomic_read'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git master
head:   6239267ace244a0e930f334f3f9b0d95c022cb1d
commit: 2025d4ca5734a19198b56056a2da7e5d63b07b15 [7/10] Merge branch 'locking/atomics'
config: mips-randconfig-a001-20200321 (attached as .config)
compiler: mipsel-linux-gcc (GCC) 5.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 2025d4ca5734a19198b56056a2da7e5d63b07b15
        # save the attached .config to linux build tree
        GCC_VERSION=5.5.0 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 >>):

   In file included from arch/mips/include/asm/bug.h:5:0,
                    from include/linux/bug.h:5,
                    from include/linux/page-flags.h:10,
                    from kernel/bounds.c:10:
   include/linux/list.h: In function 'INIT_LIST_HEAD':
   include/linux/compiler.h:238:2: error: implicit declaration of function 'kcsan_check_atomic_write' [-Werror=implicit-function-declaration]
     kcsan_check_atomic_write(&(x), sizeof(x)); \
     ^
   include/linux/list.h:35:2: note: in expansion of macro 'WRITE_ONCE'
     WRITE_ONCE(list->next, list);
     ^
   include/linux/list.h: In function 'list_empty':
>> include/linux/compiler.h:226:2: error: implicit declaration of function 'kcsan_check_atomic_read' [-Werror=implicit-function-declaration]
     kcsan_check_atomic_read(&(x), sizeof(x)); \
     ^
   include/linux/list.h:282:9: note: in expansion of macro 'READ_ONCE'
     return READ_ONCE(head->next) == head;
            ^
   cc1: some warnings being treated as errors
   make[2]: *** [scripts/Makefile.build:101: kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1114: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:180: sub-make] Error 2
   30 real  11 user  16 sys  91.77% cpu 	make prepare

vim +/kcsan_check_atomic_read +226 include/linux/compiler.h

   224	
   225	#define READ_ONCE(x) ({					\
 > 226		kcsan_check_atomic_read(&(x), sizeof(x));	\
   227		READ_ONCE_NOCHECK(x);				\
   228	})
   229	

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

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