[kvms390:pv_worktree 5/40] arch/s390/kernel/setup.c:563:6: error: 'prot_virt_host' undeclared; did you mean 'is_prot_virt_host'?

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

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git pv_worktree
head:   6a8cbdf8a1bdd3a4dff307780f9c00eeb2300adb
commit: 76f352baed9166481516cfaf88968883635b931c [5/40] s390/protvirt: add ultravisor initialization
config: s390-zfcpdump_defconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 76f352baed9166481516cfaf88968883635b931c
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=s390 

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

All errors (new ones prefixed by >>):

   arch/s390/kernel/setup.c: In function 'setup_memory_end':
>> arch/s390/kernel/setup.c:563:6: error: 'prot_virt_host' undeclared (first use in this function); did you mean 'is_prot_virt_host'?
     if (prot_virt_host)
         ^~~~~~~~~~~~~~
         is_prot_virt_host
   arch/s390/kernel/setup.c:563:6: note: each undeclared identifier is reported only once for each function it appears in
   arch/s390/kernel/setup.c: In function 'setup_arch':
   arch/s390/kernel/setup.c:1140:6: error: 'prot_virt_host' undeclared (first use in this function); did you mean 'is_prot_virt_host'?
     if (prot_virt_host)
         ^~~~~~~~~~~~~~
         is_prot_virt_host

vim +563 arch/s390/kernel/setup.c

   544	
   545	static void __init setup_memory_end(void)
   546	{
   547		unsigned long vmax, tmp;
   548	
   549		/* Choose kernel address space layout: 3 or 4 levels. */
   550		if (IS_ENABLED(CONFIG_KASAN)) {
   551			vmax = IS_ENABLED(CONFIG_KASAN_S390_4_LEVEL_PAGING)
   552				   ? _REGION1_SIZE
   553				   : _REGION2_SIZE;
   554		} else {
   555			tmp = (memory_end ?: max_physmem_end) / PAGE_SIZE;
   556			tmp = tmp * (sizeof(struct page) + PAGE_SIZE);
   557			if (tmp + vmalloc_size + MODULES_LEN <= _REGION2_SIZE)
   558				vmax = _REGION2_SIZE; /* 3-level kernel page table */
   559			else
   560				vmax = _REGION1_SIZE; /* 4-level kernel page table */
   561		}
   562	
 > 563		if (prot_virt_host)
   564			adjust_to_uv_max(&vmax);
   565	
   566		/* module area is at the end of the kernel address space. */
   567		MODULES_END = vmax;
   568		MODULES_VADDR = MODULES_END - MODULES_LEN;
   569		VMALLOC_END = MODULES_VADDR;
   570		VMALLOC_START = VMALLOC_END - vmalloc_size;
   571	
   572		/* Split remaining virtual space between 1:1 mapping & vmemmap array */
   573		tmp = VMALLOC_START / (PAGE_SIZE + sizeof(struct page));
   574		/* vmemmap contains a multiple of PAGES_PER_SECTION struct pages */
   575		tmp = SECTION_ALIGN_UP(tmp);
   576		tmp = VMALLOC_START - tmp * sizeof(struct page);
   577		tmp &= ~((vmax >> 11) - 1);	/* align to page table level */
   578		tmp = min(tmp, 1UL << MAX_PHYSMEM_BITS);
   579		vmemmap = (struct page *) tmp;
   580	
   581		/* Take care that memory_end is set and <= vmemmap */
   582		memory_end = min(memory_end ?: max_physmem_end, (unsigned long)vmemmap);
   583	#ifdef CONFIG_KASAN
   584		/* fit in kasan shadow memory region between 1:1 and vmemmap */
   585		memory_end = min(memory_end, KASAN_SHADOW_START);
   586		vmemmap = max(vmemmap, (struct page *)KASAN_SHADOW_END);
   587	#endif
   588		max_pfn = max_low_pfn = PFN_DOWN(memory_end);
   589		memblock_remove(memory_end, ULONG_MAX);
   590	
   591		pr_notice("The maximum memory size is %luMB\n", memory_end >> 20);
   592	}
   593	

---
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