Re: [RFC PATCH 2/2] KUnit: KASAN Integration

[kbuild test robot <lkp@intel.com>]

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Hi Patricia,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on tip/sched/core]
[also build test ERROR on linus/master v5.6-rc3]
[cannot apply to linux/master next-20200226]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Patricia-Alfonso/Port-KASAN-Tests-to-KUnit/20200227-104526
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git a0f03b617c3b2644d3d47bf7d9e60aed01bd5b10
config: nds32-randconfig-a001-20200227 (attached as .config)
compiler: nds32le-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
        # save the attached .config to linux build tree
        GCC_VERSION=9.2.0 make.cross ARCH=nds32 

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/nds32/include/asm/fpu.h:9,
                    from arch/nds32/include/asm/elf.h:12,
                    from include/linux/elf.h:5,
                    from include/linux/module.h:18,
                    from include/kunit/test.h:15,
                    from include/linux/sched.h:35,
                    from arch/nds32/kernel/asm-offsets.c:4:
   include/linux/sched/task_stack.h: In function 'task_stack_page':
   include/linux/sched/task_stack.h:21:13: error: dereferencing pointer to incomplete type 'const struct task_struct'
      21 |  return task->stack;
         |             ^~
   include/linux/sched/task_stack.h: In function 'try_get_task_stack':
>> include/linux/sched/task_stack.h:64:35: error: dereferencing pointer to incomplete type 'struct task_struct'
      64 |  return refcount_inc_not_zero(&tsk->stack_refcount) ?
         |                                   ^~
   make[2]: *** [scripts/Makefile.build:101: arch/nds32/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1112: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:179: sub-make] Error 2
   29 real  7 user  11 sys  64.13% cpu 	make prepare

vim +64 include/linux/sched/task_stack.h

f3ac60671954c8 Ingo Molnar     2017-02-03  60  
f3ac60671954c8 Ingo Molnar     2017-02-03  61  #ifdef CONFIG_THREAD_INFO_IN_TASK
f3ac60671954c8 Ingo Molnar     2017-02-03  62  static inline void *try_get_task_stack(struct task_struct *tsk)
f3ac60671954c8 Ingo Molnar     2017-02-03  63  {
f0b89d3958d73c Elena Reshetova 2019-01-18 @64  	return refcount_inc_not_zero(&tsk->stack_refcount) ?
f3ac60671954c8 Ingo Molnar     2017-02-03  65  		task_stack_page(tsk) : NULL;
f3ac60671954c8 Ingo Molnar     2017-02-03  66  }
f3ac60671954c8 Ingo Molnar     2017-02-03  67  

:::::: The code at line 64 was first introduced by commit
:::::: f0b89d3958d73cd0785ec381f0ddf8efb6f183d8 sched/core: Convert task_struct.stack_refcount to refcount_t

:::::: TO: Elena Reshetova <elena.reshetova@intel.com>
:::::: CC: Ingo Molnar <mingo@kernel.org>

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

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