[davidhildenbrand:ptval_print 2/2] include/asm-generic/pgtable-nop4d.h:39:16: error: returning 'long unsigned int *' from a function with return type 'int' makes integer from pointer without a cast

[davidhildenbrand:ptval_print 2/2] include/asm-generic/pgtable-nop4d.h:39:16: error: returning 'long unsigned int *' from a function with return type 'int' makes integer from pointer without a cast

[kernel test robot]

tree:   https://github.com/davidhildenbrand/linux ptval_print
head:   dc3342ef64ac75a436edc8bfec8e3826e15f0a91
commit: dc3342ef64ac75a436edc8bfec8e3826e15f0a91 [2/2] mm: optimize pmdp_get() and friends for folded pagetable levels
config: arm-randconfig-002-20260702 (https://download.01.org/0day-ci/archive/20260702/202607020840.w571GSuB-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260702/202607020840.w571GSuB-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/202607020840.w571GSuB-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/asm-generic/pgtable-nopud.h:7,
                    from arch/arm/include/asm/pgtable.h:13,
                    from include/linux/pgtable.h:6,
                    from include/linux/mm.h:31,
                    from arch/arm/kernel/asm-offsets.c:14:
   include/asm-generic/pgtable-nop4d.h:35:21: error: 'pgdp_get' declared as function returning an array
      35 | static inline pgd_t pgdp_get(pgd_t *p4dp)
         |                     ^~~~~~~~
   include/asm-generic/pgtable-nop4d.h: In function 'pgdp_get':
>> include/asm-generic/pgtable-nop4d.h:39:16: error: returning 'long unsigned int *' from a function with return type 'int' makes integer from pointer without a cast [-Wint-conversion]
      39 |         return dummy;
         |                ^~~~~
   make[3]: *** [scripts/Makefile.build:184: arch/arm/kernel/asm-offsets.s] Error 1 shuffle=418363714
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1405: prepare0] Error 2 shuffle=418363714
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=418363714
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:248: __sub-make] Error 2 shuffle=418363714
   make: Target 'prepare' not remade because of errors.


vim +39 include/asm-generic/pgtable-nop4d.h

    34	
    35	static inline pgd_t pgdp_get(pgd_t *p4dp)
    36	{
    37		pgd_t dummy = { 0 };
    38	
  > 39		return dummy;
    40	}
    41	#define pgdp_get pgdp_get
    42	

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