mm/memfd_luo.c:404:32: error: incompatible type for argument 1 of 'phys_to_virt'

mm/memfd_luo.c:404:32: error: incompatible type for argument 1 of 'phys_to_virt'

[kernel test robot]

tree:   https://github.com/intel-lab-lkp/linux/commits/Tarun-Sahu/kho-add-KHOSER_COPY_PTR-to-allow-phys-copy-of-serialized-ptr/20260623-195248
head:   324baa84cbf51b0e981cfb3b684037a4e4862433
commit: 324baa84cbf51b0e981cfb3b684037a4e4862433 luo: Update serialized data to use KHOSER_PTR
date:   8 days ago
config: x86_64-rhel-9.4-kselftests (https://download.01.org/0day-ci/archive/20260701/202607011209.2J1vgY7B-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260701/202607011209.2J1vgY7B-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/202607011209.2J1vgY7B-lkp@intel.com/

All errors (new ones prefixed by >>):

   mm/memfd_luo.c: In function 'memfd_luo_finish':
>> mm/memfd_luo.c:404:32: error: incompatible type for argument 1 of 'phys_to_virt'
     404 |         ser = phys_to_virt(args->serialized_data);
         |                            ~~~~^~~~~~~~~~~~~~~~~
         |                                |
         |                                union <anonymous>
   In file included from include/linux/io.h:12,
                    from mm/memfd_luo.c:76:
   arch/x86/include/asm/io.h:148:46: note: expected 'phys_addr_t' {aka 'long long unsigned int'} but argument is of type 'union <anonymous>'
     148 | static inline void *phys_to_virt(phys_addr_t address)
         |                                  ~~~~~~~~~~~~^~~~~~~
   mm/memfd_luo.c: In function 'memfd_luo_retrieve':
   mm/memfd_luo.c:531:32: error: incompatible type for argument 1 of 'phys_to_virt'
     531 |         ser = phys_to_virt(args->serialized_data);
         |                            ~~~~^~~~~~~~~~~~~~~~~
         |                                |
         |                                union <anonymous>
   arch/x86/include/asm/io.h:148:46: note: expected 'phys_addr_t' {aka 'long long unsigned int'} but argument is of type 'union <anonymous>'
     148 | static inline void *phys_to_virt(phys_addr_t address)
         |                                  ~~~~~~~~~~~~^~~~~~~


vim +/phys_to_virt +404 mm/memfd_luo.c

b3749f174d6866 Pratyush Yadav          2025-11-25  386  
b3749f174d6866 Pratyush Yadav          2025-11-25  387  static void memfd_luo_finish(struct liveupdate_file_op_args *args)
b3749f174d6866 Pratyush Yadav          2025-11-25  388  {
b3749f174d6866 Pratyush Yadav          2025-11-25  389  	struct memfd_luo_folio_ser *folios_ser;
b3749f174d6866 Pratyush Yadav          2025-11-25  390  	struct memfd_luo_ser *ser;
b3749f174d6866 Pratyush Yadav          2025-11-25  391  
f85b1c6af5bc38 Pratyush Yadav (Google  2026-02-16  392) 	/*
f85b1c6af5bc38 Pratyush Yadav (Google  2026-02-16  393) 	 * If retrieve was successful, nothing to do. If it failed, retrieve()
f85b1c6af5bc38 Pratyush Yadav (Google  2026-02-16  394) 	 * already cleaned up everything it could. So nothing to do there
f85b1c6af5bc38 Pratyush Yadav (Google  2026-02-16  395) 	 * either. Only need to clean up when retrieve was not called.
f85b1c6af5bc38 Pratyush Yadav (Google  2026-02-16  396) 	 */
f85b1c6af5bc38 Pratyush Yadav (Google  2026-02-16  397) 	if (args->retrieve_status)
b3749f174d6866 Pratyush Yadav          2025-11-25  398  		return;
b3749f174d6866 Pratyush Yadav          2025-11-25  399  
324baa84cbf51b Tarun Sahu              2026-06-23  400  	ser = KHOSER_LOAD_PTR(args->serialized_data);
324baa84cbf51b Tarun Sahu              2026-06-23  401  	if (!ser)
b3749f174d6866 Pratyush Yadav          2025-11-25  402  		return;
b3749f174d6866 Pratyush Yadav          2025-11-25  403  
5968408926aa37 Tarun Sahu              2026-06-23 @404  	ser = phys_to_virt(args->serialized_data);
5968408926aa37 Tarun Sahu              2026-06-23  405  
b3749f174d6866 Pratyush Yadav          2025-11-25  406  	if (ser->nr_folios) {
b3749f174d6866 Pratyush Yadav          2025-11-25  407  		folios_ser = kho_restore_vmalloc(&ser->folios);
b3749f174d6866 Pratyush Yadav          2025-11-25  408  		if (!folios_ser)
b3749f174d6866 Pratyush Yadav          2025-11-25  409  			goto out;
b3749f174d6866 Pratyush Yadav          2025-11-25  410  
b3749f174d6866 Pratyush Yadav          2025-11-25  411  		memfd_luo_discard_folios(folios_ser, ser->nr_folios);
b3749f174d6866 Pratyush Yadav          2025-11-25  412  		vfree(folios_ser);
b3749f174d6866 Pratyush Yadav          2025-11-25  413  	}
b3749f174d6866 Pratyush Yadav          2025-11-25  414  
b3749f174d6866 Pratyush Yadav          2025-11-25  415  out:
b3749f174d6866 Pratyush Yadav          2025-11-25  416  	kho_restore_free(ser);
b3749f174d6866 Pratyush Yadav          2025-11-25  417  }
b3749f174d6866 Pratyush Yadav          2025-11-25  418  

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