It is unnecessary, and in general impossible, to define the compat
ioctl numbers except when building the filesystem with CONFIG_COMPAT
defined.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 #define EXT4_IOC_ALLOC_DA_BLKS         _IO('f', 12)
 #define EXT4_IOC_MOVE_EXT              _IOWR('f', 15, struct move_extent)
 
+#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
 /*
  * ioctl commands in 32 bit emulation
  */
 #endif
 #define EXT4_IOC32_GETVERSION_OLD      FS_IOC32_GETVERSION
 #define EXT4_IOC32_SETVERSION_OLD      FS_IOC32_SETVERSION
+#endif
 
 
 /*