[kas:kvm-unmapped-poison 7/7] arch/s390/kvm/../../../virt/kvm/kvm_main.c:2809:8: error: implicit declaration of function 'TestClearPageHWPoison'; did you mean

[kas:kvm-unmapped-poison 7/7] arch/s390/kvm/../../../virt/kvm/kvm_main.c:2809:8: error: implicit declaration of function 'TestClearPageHWPoison'; did you mean

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git kvm-unmapped-poison
head:   51d4d402256b9c1b8e38be95bfa2bb28dc8189ad
commit: 51d4d402256b9c1b8e38be95bfa2bb28dc8189ad [7/7] KVM: unmap guest memory with poison
config: s390-randconfig-r011-20210312 (attached as .config)
compiler: s390-linux-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git/commit/?id=51d4d402256b9c1b8e38be95bfa2bb28dc8189ad
        git remote add kas https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git
        git fetch --no-tags kas kvm-unmapped-poison
        git checkout 51d4d402256b9c1b8e38be95bfa2bb28dc8189ad
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 

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

All errors (new ones prefixed by >>):

   arch/s390/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_share_memory':
>> arch/s390/kvm/../../../virt/kvm/kvm_main.c:2809:8: error: implicit declaration of function 'TestClearPageHWPoison'; did you mean 'ClearPageHWPoison'? [-Werror=implicit-function-declaration]
    2809 |   if (!TestClearPageHWPoison(page))
         |        ^~~~~~~~~~~~~~~~~~~~~
         |        ClearPageHWPoison
   cc1: some warnings being treated as errors


vim +2809 arch/s390/kvm/../../../virt/kvm/kvm_main.c

  2780	
  2781	int kvm_share_memory(struct kvm *kvm, unsigned long gfn, unsigned long npages)
  2782	{
  2783		unsigned long end = gfn + npages;
  2784	
  2785		if (!npages)
  2786			return 0;
  2787	
  2788		/*
  2789		 * Out of slots.
  2790		 * Still worth to proceed: the new range may merge with an existing
  2791		 * one.
  2792		 */
  2793		WARN_ON_ONCE(nr_shared_ranges == ARRAY_SIZE(shared_ranges));
  2794	
  2795		if (mmap_write_lock_killable(kvm->mm))
  2796			return -KVM_EINTR;
  2797		nr_shared_ranges = add_range_with_merge(shared_ranges,
  2798							ARRAY_SIZE(shared_ranges),
  2799							nr_shared_ranges, gfn, end);
  2800		nr_shared_ranges = clean_sort_range(shared_ranges,
  2801						    ARRAY_SIZE(shared_ranges));
  2802		mmap_write_unlock(kvm->mm);
  2803	
  2804		for (; gfn < end; gfn++) {
  2805			struct page *page = gfn_to_page(kvm, gfn);
  2806	
  2807			if (page == KVM_ERR_PTR_BAD_PAGE)
  2808				continue;
> 2809			if (!TestClearPageHWPoison(page))
  2810				continue;
  2811			lock_page(page);
  2812			remove_migration_ptes(page, page, false);
  2813			unlock_page(page);
  2814			put_page(page);
  2815		}
  2816	
  2817		return 0;
  2818	}
  2819	

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

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