Avoid that building with gcc 7 fails as follows:
iscsi-dd.c: In function 'cscd_ident_inq':
iscsi-dd.c:405:8: error: this statement may fall through [-Werror=implicit-fallthrough=]
if (prev_type <= desig->designator_type) {
^
iscsi-dd.c:409:4: note: here
default:
^~~~~~~
cc1: all warnings being treated as errors
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
3cd40965a0