[chao:bugfix/common 3/9] fs/f2fs/f2fs.h:2100:50: error: passing 'const struct folio *' to parameter of type 'struct folio *' discards qualifiers

[chao:bugfix/common 3/9] fs/f2fs/f2fs.h:2100:50: error: passing 'const struct folio *' to parameter of type 'struct folio *' discards qualifiers

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git bugfix/common
head:   2860d2a634860b83a27a71e5db3c2c416a59008a
commit: a14b19bd94199c525031bdc63821ab086f4c70bf [3/9] f2fs: introduce is_{meta,node}_folio
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20250509/202505090256.TMKDR2XH-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250509/202505090256.TMKDR2XH-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/202505090256.TMKDR2XH-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from fs/f2fs/dir.c:13:
>> fs/f2fs/f2fs.h:2100:50: error: passing 'const struct folio *' to parameter of type 'struct folio *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
    2100 |         return folio->mapping == META_MAPPING(F2FS_F_SB(folio));
         |                                                         ^~~~~
   fs/f2fs/f2fs.h:2023:60: note: passing argument to parameter 'folio' here
    2023 | static inline struct f2fs_sb_info *F2FS_F_SB(struct folio *folio)
         |                                                            ^
   fs/f2fs/f2fs.h:2105:50: error: passing 'const struct folio *' to parameter of type 'struct folio *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
    2105 |         return folio->mapping == NODE_MAPPING(F2FS_F_SB(folio));
         |                                                         ^~~~~
   fs/f2fs/f2fs.h:2023:60: note: passing argument to parameter 'folio' here
    2023 | static inline struct f2fs_sb_info *F2FS_F_SB(struct folio *folio)
         |                                                            ^
   2 errors generated.


vim +2100 fs/f2fs/f2fs.h

  2097	
  2098	static inline bool is_meta_folio(const struct folio *folio)
  2099	{
> 2100		return folio->mapping == META_MAPPING(F2FS_F_SB(folio));
  2101	}
  2102	

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