'0x7FDEADBEEF' will be truncated to 32-bit number under unicore32. Need
append 'ULL' for it.
The related warning (with allmodconfig under unicore32):
    CC [M]  fs/ext4/extents_status.o
  fs/ext4/extents_status.c: In function "__es_remove_extent":
  fs/ext4/extents_status.c:813: warning: integer constant is too large for "long" type
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
 
                        newes.es_lblk = end + 1;
                        newes.es_len = len2;
-                       block = 0x7FDEADBEEF;
+                       block = 0x7FDEADBEEFULL;
                        if (ext4_es_is_written(&orig_es) ||
                            ext4_es_is_unwritten(&orig_es))
                                block = ext4_es_pblock(&orig_es) +