CC      fs/file.o
In file included from ./include/linux/linkage.h:7,
                 from ./include/linux/fs.h:5,
                 from ./include/uapi/linux/aio_abi.h:31,
                 from ./include/linux/syscalls.h:73,
                 from fs/file.c:10:
fs/file.c:785:15: error: ‘close_fd_get_file’ undeclared here (not in a function); did you mean ‘close_files’?
 EXPORT_SYMBOL(close_fd_get_file);
               ^~~~~~~~~~~~~~~~~
./include/linux/export.h:98:16: note: in definition of macro ‘___EXPORT_SYMBOL’
  extern typeof(sym) sym;       \
                ^~~
./include/linux/export.h:155:34: note: in expansion of macro ‘__EXPORT_SYMBOL’
 #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "")
                                  ^~~~~~~~~~~~~~~
./include/linux/export.h:158:29: note: in expansion of macro ‘_EXPORT_SYMBOL’
 #define EXPORT_SYMBOL(sym)  _EXPORT_SYMBOL(sym, "")
                             ^~~~~~~~~~~~~~
fs/file.c:785:1: note: in expansion of macro ‘EXPORT_SYMBOL’
 EXPORT_SYMBOL(close_fd_get_file);
 ^~~~~~~~~~~~~
make[3]: *** [scripts/Makefile.build:279: fs/file.o] Error 1
make[2]: *** [Makefile:1805: fs] Error 2
make[1]: *** [scripts/Makefile.package:109: tarxz-pkg] Error 2
make: *** [Makefile:1533: tarxz-pkg] Error 2