Re: [PATCH 1/5] mm: Introduce a common definition of mk_pte()

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Hi Matthew,

kernel test robot noticed the following build errors:

[auto build test ERROR on geert-m68k/for-next]
[also build test ERROR on geert-m68k/for-linus uml/next linus/master v6.11-rc3 next-20240814]
[cannot apply to uml/fixes]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Matthew-Wilcox-Oracle/mm-Introduce-a-common-definition-of-mk_pte/20240815-001852
base:   https://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git for-next
patch link:    https://lore.kernel.org/r/20240814154427.162475-2-willy%40infradead.org
patch subject: [PATCH 1/5] mm: Introduce a common definition of mk_pte()
config: arc-allnoconfig (https://download.01.org/0day-ci/archive/20240815/202408151035.TtR6QRvZ-lkp@xxxxxxxxx/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240815/202408151035.TtR6QRvZ-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408151035.TtR6QRvZ-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from arch/arc/include/asm/io.h:11,
                    from include/linux/io.h:14,
                    from lib/iomap_copy.c:7:
   include/linux/pgtable.h: In function 'mk_pte':
>> include/asm-generic/memory_model.h:19:59: error: 'mem_map' undeclared (first use in this function); did you mean 'memcmp'?
      19 | #define __page_to_pfn(page)     ((unsigned long)((page) - mem_map) + \
         |                                                           ^~~~~~~
   arch/arc/include/asm/page.h:75:37: note: in definition of macro '__pte'
      75 | #define __pte(x)        ((pte_t) { (x) })
         |                                     ^
   include/asm-generic/memory_model.h:62:33: note: in expansion of macro 'PFN_PHYS'
      62 | #define __pfn_to_phys(pfn)      PFN_PHYS(pfn)
         |                                 ^~~~~~~~
   arch/arc/include/asm/pgtable-levels.h:179:39: note: in expansion of macro '__pfn_to_phys'
     179 | #define pfn_pte(pfn, prot)      __pte(__pfn_to_phys(pfn) | pgprot_val(prot))
         |                                       ^~~~~~~~~~~~~
   include/linux/pgtable.h:47:16: note: in expansion of macro 'pfn_pte'
      47 |         return pfn_pte(page_to_pfn(page), pgprot);
         |                ^~~~~~~
   include/asm-generic/memory_model.h:64:21: note: in expansion of macro '__page_to_pfn'
      64 | #define page_to_pfn __page_to_pfn
         |                     ^~~~~~~~~~~~~
   include/linux/pgtable.h:47:24: note: in expansion of macro 'page_to_pfn'
      47 |         return pfn_pte(page_to_pfn(page), pgprot);
         |                        ^~~~~~~~~~~
   include/asm-generic/memory_model.h:19:59: note: each undeclared identifier is reported only once for each function it appears in
      19 | #define __page_to_pfn(page)     ((unsigned long)((page) - mem_map) + \
         |                                                           ^~~~~~~
   arch/arc/include/asm/page.h:75:37: note: in definition of macro '__pte'
      75 | #define __pte(x)        ((pte_t) { (x) })
         |                                     ^
   include/asm-generic/memory_model.h:62:33: note: in expansion of macro 'PFN_PHYS'
      62 | #define __pfn_to_phys(pfn)      PFN_PHYS(pfn)
         |                                 ^~~~~~~~
   arch/arc/include/asm/pgtable-levels.h:179:39: note: in expansion of macro '__pfn_to_phys'
     179 | #define pfn_pte(pfn, prot)      __pte(__pfn_to_phys(pfn) | pgprot_val(prot))
         |                                       ^~~~~~~~~~~~~
   include/linux/pgtable.h:47:16: note: in expansion of macro 'pfn_pte'
      47 |         return pfn_pte(page_to_pfn(page), pgprot);
         |                ^~~~~~~
   include/asm-generic/memory_model.h:64:21: note: in expansion of macro '__page_to_pfn'
      64 | #define page_to_pfn __page_to_pfn
         |                     ^~~~~~~~~~~~~
   include/linux/pgtable.h:47:24: note: in expansion of macro 'page_to_pfn'
      47 |         return pfn_pte(page_to_pfn(page), pgprot);
         |                        ^~~~~~~~~~~


vim +19 include/asm-generic/memory_model.h

a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27  17  
67de648211fa04 Andy Whitcroft    2006-06-23  18  #define __pfn_to_page(pfn)	(mem_map + ((pfn) - ARCH_PFN_OFFSET))
67de648211fa04 Andy Whitcroft    2006-06-23 @19  #define __page_to_pfn(page)	((unsigned long)((page) - mem_map) + \
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27  20  				 ARCH_PFN_OFFSET)
a117e66ed45ac0 KAMEZAWA Hiroyuki 2006-03-27  21  

-- 
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https://github.com/intel/lkp-tests/wiki




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