[alexshi:mmunstable 32/42] arch/powerpc/mm/book3s64/radix_pgtable.c:1039:33: error: incompatible pointer types passing 'pte_t *' to parameter of type 'struct ptdesc *'

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

tree:   https://github.com/alexshi/linux.git mmunstable
head:   0dc6582fabc5dcd9239957e6e6501344fd99714a
commit: 2ebcd5d8095bd27829436469978d476b4d0a35fc [32/42] mm/pgtable: return ptdesc in pte_free
config: powerpc64-randconfig-003-20240722 (https://download.01.org/0day-ci/archive/20240722/202407221810.LiFUCWbC-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project ad154281230d83ee551e12d5be48bb956ef47ed3)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240722/202407221810.LiFUCWbC-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407221810.LiFUCWbC-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/powerpc/mm/book3s64/radix_pgtable.c:10:
   In file included from include/linux/io.h:14:
   In file included from arch/powerpc/include/asm/io.h:24:
   In file included from include/linux/mm.h:2221:
   include/linux/vmstat.h:500:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     500 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     501 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:507:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     507 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     508 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     519 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     520 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     528 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     529 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/mm/book3s64/radix_pgtable.c:1039:33: error: incompatible pointer types passing 'pte_t *' to parameter of type 'struct ptdesc *' [-Werror,-Wincompatible-pointer-types]
    1039 |                         pmd_populate(&init_mm, pmdp, pte);
         |                                                      ^~~
   arch/powerpc/include/asm/book3s/64/pgalloc.h:165:20: note: passing argument to parameter 'pte_page' here
     165 |                                 struct ptdesc *pte_page)
         |                                                ^
   5 warnings and 1 error generated.


vim +1039 arch/powerpc/mm/book3s64/radix_pgtable.c

368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1029  
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1030  static inline pte_t *vmemmap_pte_alloc(pmd_t *pmdp, int node,
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1031  				       unsigned long address)
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1032  {
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1033  	pte_t *pte;
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1034  
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1035  	/* All early vmemmap mapping to keep simple do it at PAGE_SIZE */
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1036  	if (unlikely(pmd_none(*pmdp))) {
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1037  		if (unlikely(!slab_is_available())) {
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1038  			pte = early_alloc_pgtable(PAGE_SIZE, node, 0, 0);
368a0590d954a6 Aneesh Kumar K.V 2023-07-25 @1039  			pmd_populate(&init_mm, pmdp, pte);
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1040  		} else
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1041  			return pte_alloc_kernel(pmdp, address);
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1042  	}
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1043  	return pte_offset_kernel(pmdp, address);
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1044  }
368a0590d954a6 Aneesh Kumar K.V 2023-07-25  1045  

:::::: The code at line 1039 was first introduced by commit
:::::: 368a0590d954a659b16ab945328ada0cc10f93a0 powerpc/book3s64/vmemmap: switch radix to use a different vmemmap handling function

:::::: TO: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>

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