[openeuler:OLK-6.6 776/14354] arch/loongarch/kernel/efi.c:79:33: error: incompatible types when assigning to type 'pmd_t' from type 'int'

13 Oct 2024

      Hi liuyun,

FYI, the error/warning still remains.

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   b52135712fc8eae0751505713e1caf086a1437d4
commit: 221e2e8bdbb851a519df0bac5a44298dae2b4612 [776/14354] LoongArch: add kernel setvirtmap for runtime
config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20241013/202410131602.KKBCfYOV-lkp@i...)
compiler: loongarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241013/202410131602.KKBCfYOV-lkp@i...)

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/202410131602.KKBCfYOV-lkp@intel.com/

All errors (new ones prefixed by >>):

   arch/loongarch/kernel/efi.c: In function 'efimap_populate_hugepages':
   arch/loongarch/kernel/efi.c:79:33: error: implicit declaration of function 'pmd_mkhuge'; did you mean 'pte_mkhuge'? [-Wimplicit-function-declaration]
      79 |                         entry = pmd_mkhuge(entry);
         |                                 ^~~~~~~~~~
         |                                 pte_mkhuge
...
...
arch/loongarch/kernel/efi.c:79:33: error: incompatible types when assigning to type 'pmd_t' from type 'int'
vim +79 arch/loongarch/kernel/efi.c

    54	
    55	static int __init efimap_populate_hugepages(
    56			unsigned long start, unsigned long end,
    57			pgprot_t prot)
    58	{
    59		unsigned long addr;
    60		unsigned long next;
    61		pmd_t entry;
    62		pud_t *pud;
    63		pmd_t *pmd;
    64	
    65		for (addr = start; addr < end; addr = next) {
    66			next = pmd_addr_end(addr, end);
    67			pud = pud_offset((p4d_t *)pgd_efi + pgd_index(addr), addr);
    68			if (pud_none(*pud)) {
    69				void *p = memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
    70	
    71				if (!p)
    72					return -1;
    73				pmd_init(p);
    74				pud_populate(&init_mm, pud, p);
    75			}
    76			pmd = pmd_offset(pud, addr);
    77			if (pmd_none(*pmd)) {
    78				entry = pfn_pmd((addr >> PAGE_SHIFT), prot);
...
79				entry = pmd_mkhuge(entry);
    80				set_pmd_at(&init_mm, addr, pmd, entry);
    81			}
    82		}
    83		return 0;
    84	}
    85
-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

kernel test robot

tags

participants (1)