ceph: silence sparse endianness warning in encode_caps_cb

sparse warns:

  fs/ceph/mds_client.c:2887:34: warning: incorrect type in assignment (different base types)
  fs/ceph/mds_client.c:2887:34:    expected restricted __le32 [assigned] [usertype] flock_len
  fs/ceph/mds_client.c:2887:34:    got int

At this point, it's just being used as a flag. It gets
overwritten later if the rest of the encoding succeeds.
Signed-off-by: NJeff Layton <jlayton@redhat.com>
Reviewed-by: N"Yan, Zheng" <zyan@redhat.com>
Signed-off-by: NIlya Dryomov <idryomov@gmail.com>

fs/ceph/mds_client.c

@@ -2885,8 +2885,8 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
 		rec.v2.issued = cpu_to_le32(cap->issued);
 		rec.v2.snaprealm = cpu_to_le64(ci->i_snap_realm->ino);
 		rec.v2.pathbase = cpu_to_le64(pathbase);
-		rec.v2.flock_len =
-			(ci->i_ceph_flags & CEPH_I_ERROR_FILELOCK) ? 0 : 1;
+		rec.v2.flock_len = (__force __le32)
+			((ci->i_ceph_flags & CEPH_I_ERROR_FILELOCK) ? 0 : 1);
 	} else {
 		rec.v1.cap_id = cpu_to_le64(cap->cap_id);
 		rec.v1.wanted = cpu_to_le32(__ceph_caps_wanted(ci));