qapi: Avoid unnecessary use of enum lookup table's sentinel

Currently, the FOO_lookup[] generated for QAPI enum types are
terminated by a NULL sentinel.

A future patch will generate enums with "holes".  NULL-termination
will cease to work then.

To prepare for that, replace "have we reached the sentinel?"
predicates by "have we reached the FOO__MAX value?" predicates.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1503564371-26090-12-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/monitor.c b/monitor.c
index 135ec2de8f..86438f4b75 100644
--- a/monitor.c
+++ b/monitor.c
@@ -3249,7 +3249,7 @@ void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
     }
     len = strlen(str);
     readline_set_completion_index(rs, len);
-    for (i = 0; NetClientDriver_lookup[i]; i++) {
+    for (i = 0; i < NET_CLIENT_DRIVER__MAX; i++) {
         add_completion_option(rs, str, NetClientDriver_lookup[i]);
     }
 }
@@ -3537,7 +3537,7 @@ void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
         return;
     }
     readline_set_completion_index(rs, strlen(str));
-    for (i = 0; WatchdogExpirationAction_lookup[i]; i++) {
+    for (i = 0; i < WATCHDOG_EXPIRATION_ACTION__MAX; i++) {
         add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]);
     }
 }