[android-common:android15-6.6-desktop 4/4] arch/x86/include/asm/paravirt.h:873:47: warning: declaration of 'struct mm_struct' will not be visible outside of this function

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

tree:   https://android.googlesource.com/kernel/common android15-6.6-desktop
head:   3d787fbb81fafa82ef096a45908185c6c4ab2ebc
commit: 7acb4f6bcac9871c147dc6652266b3ec4235d0a8 [4/4] ANDROID: x86/paravirt: Add pv_mmio_ops
config: x86_64-buildonly-randconfig-003-20250509 (https://download.01.org/0day-ci/archive/20250509/202505090520.Ylk4FrUI-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250509/202505090520.Ylk4FrUI-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/202505090520.Ylk4FrUI-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from mm/early_ioremap.c:13:
   In file included from include/linux/io.h:13:
   In file included from arch/x86/include/asm/io.h:45:
>> arch/x86/include/asm/paravirt.h:873:47: warning: declaration of 'struct mm_struct' will not be visible outside of this function [-Wvisibility]
     873 | static inline void paravirt_enter_mmap(struct mm_struct *mm)
         |                                               ^
   arch/x86/include/asm/paravirt.h:879:51: warning: declaration of 'struct mm_struct' will not be visible outside of this function [-Wvisibility]
     879 | static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
         |                                                   ^
   In file included from mm/early_ioremap.c:14:
   In file included from include/linux/module.h:19:
   In file included from include/linux/elf.h:6:
   In file included from arch/x86/include/asm/elf.h:8:
   In file included from include/linux/page_size_compat.h:33:
   In file included from include/linux/mman.h:8:
   In file included from include/linux/mm.h:2257:
   include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     508 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     509 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     515 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     516 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     527 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     528 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     536 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     537 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   6 warnings generated.


vim +873 arch/x86/include/asm/paravirt.h

fdc0269e8958a1 Juergen Gross 2018-08-28  870  
a1ea1c032b8f8c Dave Hansen   2014-11-18  871  #ifndef __ASSEMBLY__
fdc0269e8958a1 Juergen Gross 2018-08-28  872  #ifndef CONFIG_PARAVIRT_XXL
c9ae1b10d95610 Juergen Gross 2023-02-07 @873  static inline void paravirt_enter_mmap(struct mm_struct *mm)
a1ea1c032b8f8c Dave Hansen   2014-11-18  874  {
a1ea1c032b8f8c Dave Hansen   2014-11-18  875  }
fdc0269e8958a1 Juergen Gross 2018-08-28  876  #endif
a1ea1c032b8f8c Dave Hansen   2014-11-18  877  

:::::: The code at line 873 was first introduced by commit
:::::: c9ae1b10d9561012a222e05f0d3ab4e93d301f06 x86/paravirt: Merge activate_mm() and dup_mmap() callbacks

:::::: TO: Juergen Gross <jgross@suse.com>
:::::: CC: Borislav Petkov (AMD) <bp@alien8.de>

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