Re: [PATCH V2 4/7] mm: Use pmdp_get() for accessing PMD entries

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Hi Anshuman,

kernel test robot noticed the following build errors:

[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on char-misc/char-misc-next char-misc/char-misc-linus brauner-vfs/vfs.all dennis-percpu/for-next linus/master v6.11]
[cannot apply to akpm-mm/mm-everything next-20240918]
[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/Anshuman-Khandual/m68k-mm-Change-pmd_val/20240917-153331
base:   char-misc/char-misc-testing
patch link:    https://lore.kernel.org/r/20240917073117.1531207-5-anshuman.khandual%40arm.com
patch subject: [PATCH V2 4/7] mm: Use pmdp_get() for accessing PMD entries
config: openrisc-allnoconfig (https://download.01.org/0day-ci/archive/20240919/202409190244.JcrD4CwD-lkp@xxxxxxxxx/config)
compiler: or1k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240919/202409190244.JcrD4CwD-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/202409190244.JcrD4CwD-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from include/asm-generic/bug.h:22,
                    from arch/openrisc/include/asm/bug.h:5,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:6,
                    from include/linux/pagemap.h:8,
                    from mm/pgtable-generic.c:10:
   mm/pgtable-generic.c: In function 'pmd_clear_bad':
>> arch/openrisc/include/asm/pgtable.h:369:36: error: lvalue required as unary '&' operand
     369 |                __FILE__, __LINE__, &(e), pgd_val(e))
         |                                    ^
   include/linux/printk.h:437:33: note: in definition of macro 'printk_index_wrap'
     437 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                                 ^~~~~~~~~~~
   arch/openrisc/include/asm/pgtable.h:368:9: note: in expansion of macro 'printk'
     368 |         printk(KERN_ERR "%s:%d: bad pgd %p(%08lx).\n", \
         |         ^~~~~~
   include/asm-generic/pgtable-nop4d.h:25:50: note: in expansion of macro 'pgd_ERROR'
      25 | #define p4d_ERROR(p4d)                          (pgd_ERROR((p4d).pgd))
         |                                                  ^~~~~~~~~
   include/asm-generic/pgtable-nopud.h:32:50: note: in expansion of macro 'p4d_ERROR'
      32 | #define pud_ERROR(pud)                          (p4d_ERROR((pud).p4d))
         |                                                  ^~~~~~~~~
   include/asm-generic/pgtable-nopmd.h:36:50: note: in expansion of macro 'pud_ERROR'
      36 | #define pmd_ERROR(pmd)                          (pud_ERROR((pmd).pud))
         |                                                  ^~~~~~~~~
   mm/pgtable-generic.c:54:9: note: in expansion of macro 'pmd_ERROR'
      54 |         pmd_ERROR(pmdp_get(pmd));
         |         ^~~~~~~~~


vim +369 arch/openrisc/include/asm/pgtable.h

61e85e367535a7 Jonas Bonn 2011-06-04  363  
61e85e367535a7 Jonas Bonn 2011-06-04  364  #define pte_ERROR(e) \
61e85e367535a7 Jonas Bonn 2011-06-04  365  	printk(KERN_ERR "%s:%d: bad pte %p(%08lx).\n", \
61e85e367535a7 Jonas Bonn 2011-06-04  366  	       __FILE__, __LINE__, &(e), pte_val(e))
61e85e367535a7 Jonas Bonn 2011-06-04  367  #define pgd_ERROR(e) \
61e85e367535a7 Jonas Bonn 2011-06-04  368  	printk(KERN_ERR "%s:%d: bad pgd %p(%08lx).\n", \
61e85e367535a7 Jonas Bonn 2011-06-04 @369  	       __FILE__, __LINE__, &(e), pgd_val(e))
61e85e367535a7 Jonas Bonn 2011-06-04  370  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki




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