[vhost:linux-next 13/15] arch/ia64/include/asm/page.h:51:23: warning: "hpage_shift" is not defined, evaluates to 0

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tree:   https://kernel.googlesource.com/pub/scm/linux/kernel/git/mst/vhost.git linux-next
head:   c5db5a8d998da36ada7287aa53b4ed501a0a2b2b
commit: b1b0d638e6f93b91cf34585350bb00035d066989 [13/15] mm: Introduce Reported pages
config: ia64-defconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout b1b0d638e6f93b91cf34585350bb00035d066989
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=ia64 

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

All warnings (new ones prefixed by >>):

   In file included from arch/ia64/include/asm/ptrace.h:46:0,
                    from arch/ia64/include/asm/processor.h:20,
                    from arch/ia64/include/asm/thread_info.h:12,
                    from include/linux/thread_info.h:38,
                    from include/asm-generic/preempt.h:5,
                    from ./arch/ia64/include/generated/asm/preempt.h:1,
                    from include/linux/preempt.h:78,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rculist.h:11,
                    from include/linux/sched/signal.h:5,
                    from arch/ia64/kernel/asm-offsets.c:10:
>> arch/ia64/include/asm/page.h:51:23: warning: "hpage_shift" is not defined, evaluates to 0 [-Wundef]
    # define HPAGE_SHIFT  hpage_shift
                          ^
>> arch/ia64/include/asm/page.h:153:30: note: in expansion of macro 'HPAGE_SHIFT'
    # define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
                                 ^~~~~~~~~~~
   include/linux/page_reporting.h:9:37: note: in expansion of macro 'HUGETLB_PAGE_ORDER'
    #if defined(CONFIG_HUGETLB_PAGE) && HUGETLB_PAGE_ORDER < MAX_ORDER
                                        ^~~~~~~~~~~~~~~~~~
--
   In file included from arch/ia64/include/asm/ptrace.h:46:0,
                    from arch/ia64/include/asm/processor.h:20,
                    from arch/ia64/include/asm/thread_info.h:12,
                    from include/linux/thread_info.h:38,
                    from include/asm-generic/preempt.h:5,
                    from ./arch/ia64/include/generated/asm/preempt.h:1,
                    from include/linux/preempt.h:78,
                    from include/linux/rcupdate.h:27,
                    from include/linux/rculist.h:11,
                    from include/linux/sched/signal.h:5,
                    from arch/ia64/kernel/asm-offsets.c:10:
>> arch/ia64/include/asm/page.h:51:23: warning: "hpage_shift" is not defined, evaluates to 0 [-Wundef]
    # define HPAGE_SHIFT  hpage_shift
                          ^
>> arch/ia64/include/asm/page.h:153:30: note: in expansion of macro 'HPAGE_SHIFT'
    # define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
                                 ^~~~~~~~~~~
   include/linux/page_reporting.h:9:37: note: in expansion of macro 'HUGETLB_PAGE_ORDER'
    #if defined(CONFIG_HUGETLB_PAGE) && HUGETLB_PAGE_ORDER < MAX_ORDER
                                        ^~~~~~~~~~~~~~~~~~
   <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
   4 real  3 user  1 sys  120.83% cpu 	make prepare

vim +/hpage_shift +51 arch/ia64/include/asm/page.h

^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   47  
0a41e250116058 include/asm-ia64/page.h      Peter Chubb       2005-08-16   48  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   49  #ifdef CONFIG_HUGETLB_PAGE
0a41e250116058 include/asm-ia64/page.h      Peter Chubb       2005-08-16   50  # define HPAGE_REGION_BASE	RGN_BASE(RGN_HPAGE)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  @51  # define HPAGE_SHIFT		hpage_shift
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   52  # define HPAGE_SHIFT_DEFAULT	28	/* check ia64 SDM for architecture supported size */
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   53  # define HPAGE_SIZE		(__IA64_UL_CONST(1) << HPAGE_SHIFT)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   54  # define HPAGE_MASK		(~(HPAGE_SIZE - 1))
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   55  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   56  # define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   57  #endif /* CONFIG_HUGETLB_PAGE */
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   58  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   59  #ifdef __ASSEMBLY__
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   60  # define __pa(x)		((x) - PAGE_OFFSET)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   61  # define __va(x)		((x) + PAGE_OFFSET)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   62  #else /* !__ASSEMBLY */
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   63  #  define STRICT_MM_TYPECHECKS
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   64  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   65  extern void clear_page (void *page);
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   66  extern void copy_page (void *to, void *from);
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   67  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   68  /*
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   69   * clear_user_page() and copy_user_page() can't be inline functions because
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   70   * flush_dcache_page() can't be defined until later...
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   71   */
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   72  #define clear_user_page(addr, vaddr, page)	\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   73  do {						\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   74  	clear_page(addr);			\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   75  	flush_dcache_page(page);		\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   76  } while (0)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   77  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   78  #define copy_user_page(to, from, vaddr, page)	\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   79  do {						\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   80  	copy_page((to), (from));		\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   81  	flush_dcache_page(page);		\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   82  } while (0)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   83  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   84  
769848c03895b6 include/asm-ia64/page.h      Mel Gorman        2007-07-17   85  #define __alloc_zeroed_user_highpage(movableflags, vma, vaddr)		\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   86  ({									\
769848c03895b6 include/asm-ia64/page.h      Mel Gorman        2007-07-17   87  	struct page *page = alloc_page_vma(				\
769848c03895b6 include/asm-ia64/page.h      Mel Gorman        2007-07-17   88  		GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr);	\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   89  	if (page)							\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   90   		flush_dcache_page(page);				\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   91  	page;								\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   92  })
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   93  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   94  #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   95  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   96  #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   97  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   98  #ifdef CONFIG_VIRTUAL_MEM_MAP
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16   99  extern int ia64_pfn_valid (unsigned long pfn);
b0f40ea04a85b0 include/asm-ia64/page.h      Matthew Wilcox    2006-11-16  100  #else
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  101  # define ia64_pfn_valid(pfn) 1
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  102  #endif
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  103  
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  104  #ifdef CONFIG_VIRTUAL_MEM_MAP
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  105  extern struct page *vmem_map;
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  106  #ifdef CONFIG_DISCONTIGMEM
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  107  # define page_to_pfn(page)	((unsigned long) (page - vmem_map))
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  108  # define pfn_to_page(pfn)	(vmem_map + (pfn))
d2c0f041e1bb12 arch/ia64/include/asm/page.h Dan Williams      2016-01-15  109  # define __pfn_to_phys(pfn)	PFN_PHYS(pfn)
b0f40ea04a85b0 include/asm-ia64/page.h      Matthew Wilcox    2006-11-16  110  #else
b0f40ea04a85b0 include/asm-ia64/page.h      Matthew Wilcox    2006-11-16  111  # include <asm-generic/memory_model.h>
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  112  #endif
b0f40ea04a85b0 include/asm-ia64/page.h      Matthew Wilcox    2006-11-16  113  #else
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  114  # include <asm-generic/memory_model.h>
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  115  #endif
0ecd702bcb924d include/asm-ia64/page.h      KAMEZAWA Hiroyuki 2006-03-27  116  
1be7d9935b9c7f include/asm-ia64/page.h      Bob Picco         2005-10-04  117  #ifdef CONFIG_FLATMEM
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  118  # define pfn_valid(pfn)		(((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
1be7d9935b9c7f include/asm-ia64/page.h      Bob Picco         2005-10-04  119  #elif defined(CONFIG_DISCONTIGMEM)
b77dae5293efba include/asm-ia64/page.h      Dean Roe          2005-11-09  120  extern unsigned long min_low_pfn;
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  121  extern unsigned long max_low_pfn;
b77dae5293efba include/asm-ia64/page.h      Dean Roe          2005-11-09  122  # define pfn_valid(pfn)		(((pfn) >= min_low_pfn) && ((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  123  #endif
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  124  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  125  #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  126  #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
631bb0e74e811e include/asm-ia64/page.h      Bob Picco         2005-10-31  127  #define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  128  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  129  typedef union ia64_va {
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  130  	struct {
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  131  		unsigned long off : 61;		/* intra-region offset */
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  132  		unsigned long reg :  3;		/* region number */
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  133  	} f;
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  134  	unsigned long l;
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  135  	void *p;
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  136  } ia64_va;
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  137  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  138  /*
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  139   * Note: These macros depend on the fact that PAGE_OFFSET has all
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  140   * region bits set to 1 and all other bits set to zero.  They are
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  141   * expressed in this way to ensure they result in a single "dep"
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  142   * instruction.
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  143   */
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  144  #define __pa(x)		({ia64_va _v; _v.l = (long) (x); _v.f.reg = 0; _v.l;})
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  145  #define __va(x)		({ia64_va _v; _v.l = (long) (x); _v.f.reg = -1; _v.p;})
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  146  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  147  #define REGION_NUMBER(x)	({ia64_va _v; _v.l = (long) (x); _v.f.reg;})
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  148  #define REGION_OFFSET(x)	({ia64_va _v; _v.l = (long) (x); _v.f.off;})
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  149  
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  150  #ifdef CONFIG_HUGETLB_PAGE
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  151  # define htlbpage_to_page(x)	(((unsigned long) REGION_NUMBER(x) << 61)			\
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  152  				 | (REGION_OFFSET(x) >> (HPAGE_SHIFT-PAGE_SHIFT)))
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16 @153  # define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  154  extern unsigned int hpage_shift;
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  155  #endif
^1da177e4c3f41 include/asm-ia64/page.h      Linus Torvalds    2005-04-16  156  

:::::: The code at line 51 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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