qapi rocker: Elide redundant has_FOO in generated C

The has_FOO for pointer-valued FOO are redundant, except for arrays.
They are also a nuisance to work with.  Recent commit "qapi: Start to
elide redundant has_FOO in generated C" provided the means to elide
them step by step.  This is the step for qapi/rocker.json.

Said commit explains the transformation in more detail.  The invariant
violations mentioned there do not occur here.

Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221104160712.3005652-23-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

hw/net/rocker/rocker_of_dpa.c

@@ -2348,23 +2348,19 @@ static void of_dpa_flow_fill(void *cookie, void *value, void *user_data)
 
     if (memcmp(key->eth.src.a, zero_mac.a, ETH_ALEN) ||
         memcmp(mask->eth.src.a, zero_mac.a, ETH_ALEN)) {
-        nkey->has_eth_src = true;
         nkey->eth_src = qemu_mac_strdup_printf(key->eth.src.a);
     }
 
-    if (nkey->has_eth_src && memcmp(mask->eth.src.a, ff_mac.a, ETH_ALEN)) {
-        nmask->has_eth_src = true;
+    if (nkey->eth_src && memcmp(mask->eth.src.a, ff_mac.a, ETH_ALEN)) {
         nmask->eth_src = qemu_mac_strdup_printf(mask->eth.src.a);
     }
 
     if (memcmp(key->eth.dst.a, zero_mac.a, ETH_ALEN) ||
         memcmp(mask->eth.dst.a, zero_mac.a, ETH_ALEN)) {
-        nkey->has_eth_dst = true;
         nkey->eth_dst = qemu_mac_strdup_printf(key->eth.dst.a);
     }
 
-    if (nkey->has_eth_dst && memcmp(mask->eth.dst.a, ff_mac.a, ETH_ALEN)) {
-        nmask->has_eth_dst = true;
+    if (nkey->eth_dst && memcmp(mask->eth.dst.a, ff_mac.a, ETH_ALEN)) {
         nmask->eth_dst = qemu_mac_strdup_printf(mask->eth.dst.a);
     }
 
@@ -2400,7 +2396,6 @@ static void of_dpa_flow_fill(void *cookie, void *value, void *user_data)
             if (key->ipv4.addr.dst || mask->ipv4.addr.dst) {
                 char *dst = inet_ntoa(*(struct in_addr *)&key->ipv4.addr.dst);
                 int dst_len = of_dpa_mask2prefix(mask->ipv4.addr.dst);
-                nkey->has_ip_dst = true;
                 nkey->ip_dst = g_strdup_printf("%s/%d", dst, dst_len);
             }
             break;
@@ -2501,12 +2496,10 @@ static void of_dpa_group_fill(void *key, void *value, void *user_data)
             ngroup->set_vlan_id = ntohs(group->l2_rewrite.vlan_id);
         }
         if (memcmp(group->l2_rewrite.src_mac.a, zero_mac.a, ETH_ALEN)) {
-            ngroup->has_set_eth_src = true;
             ngroup->set_eth_src =
                 qemu_mac_strdup_printf(group->l2_rewrite.src_mac.a);
         }
         if (memcmp(group->l2_rewrite.dst_mac.a, zero_mac.a, ETH_ALEN)) {
-            ngroup->has_set_eth_dst = true;
             ngroup->set_eth_dst =
                 qemu_mac_strdup_printf(group->l2_rewrite.dst_mac.a);
         }
@@ -2532,12 +2525,10 @@ static void of_dpa_group_fill(void *key, void *value, void *user_data)
             ngroup->set_vlan_id = ntohs(group->l3_unicast.vlan_id);
         }
         if (memcmp(group->l3_unicast.src_mac.a, zero_mac.a, ETH_ALEN)) {
-            ngroup->has_set_eth_src = true;
             ngroup->set_eth_src =
                 qemu_mac_strdup_printf(group->l3_unicast.src_mac.a);
         }
         if (memcmp(group->l3_unicast.dst_mac.a, zero_mac.a, ETH_ALEN)) {
-            ngroup->has_set_eth_dst = true;
             ngroup->set_eth_dst =
                 qemu_mac_strdup_printf(group->l3_unicast.dst_mac.a);
         }

monitor/hmp-cmds.c

@@ -2010,35 +2010,35 @@ void hmp_rocker_of_dpa_flows(Monitor *mon, const QDict *qdict)
             }
         }
 
-        if (key->has_eth_src) {
+        if (key->eth_src) {
             if ((strcmp(key->eth_src, "01:00:00:00:00:00") == 0) &&
-                (mask->has_eth_src) &&
+                mask->eth_src &&
                 (strcmp(mask->eth_src, "01:00:00:00:00:00") == 0)) {
                 monitor_printf(mon, " src <any mcast/bcast>");
             } else if ((strcmp(key->eth_src, "00:00:00:00:00:00") == 0) &&
-                (mask->has_eth_src) &&
+                mask->eth_src &&
                 (strcmp(mask->eth_src, "01:00:00:00:00:00") == 0)) {
                 monitor_printf(mon, " src <any ucast>");
             } else {
                 monitor_printf(mon, " src %s", key->eth_src);
-                if (mask->has_eth_src) {
+                if (mask->eth_src) {
                     monitor_printf(mon, "(%s)", mask->eth_src);
                 }
             }
         }
 
-        if (key->has_eth_dst) {
+        if (key->eth_dst) {
             if ((strcmp(key->eth_dst, "01:00:00:00:00:00") == 0) &&
-                (mask->has_eth_dst) &&
+                mask->eth_dst &&
                 (strcmp(mask->eth_dst, "01:00:00:00:00:00") == 0)) {
                 monitor_printf(mon, " dst <any mcast/bcast>");
             } else if ((strcmp(key->eth_dst, "00:00:00:00:00:00") == 0) &&
-                (mask->has_eth_dst) &&
+                mask->eth_dst &&
                 (strcmp(mask->eth_dst, "01:00:00:00:00:00") == 0)) {
                 monitor_printf(mon, " dst <any ucast>");
             } else {
                 monitor_printf(mon, " dst %s", key->eth_dst);
-                if (mask->has_eth_dst) {
+                if (mask->eth_dst) {
                     monitor_printf(mon, "(%s)", mask->eth_dst);
                 }
             }
@@ -2058,7 +2058,7 @@ void hmp_rocker_of_dpa_flows(Monitor *mon, const QDict *qdict)
             }
         }
 
-        if (key->has_ip_dst) {
+        if (key->ip_dst) {
             monitor_printf(mon, " dst %s", key->ip_dst);
         }
 
@@ -2137,7 +2137,7 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
                            group->set_vlan_id & VLAN_VID_MASK);
         }
 
-        if (group->has_set_eth_src) {
+        if (group->set_eth_src) {
             if (!set) {
                 set = true;
                 monitor_printf(mon, " set");
@@ -2145,7 +2145,7 @@ void hmp_rocker_of_dpa_groups(Monitor *mon, const QDict *qdict)
             monitor_printf(mon, " src %s", group->set_eth_src);
         }
 
-        if (group->has_set_eth_dst) {
+        if (group->set_eth_dst) {
             if (!set) {
                 monitor_printf(mon, " set");
             }

scripts/qapi/schema.py

@@ -759,7 +759,6 @@ def need_has(self):
         assert self.type
         # Temporary hack to support dropping the has_FOO in reviewable chunks
         opt_out = [
-            'qapi/rocker.json',
             'qapi/run-state.json',
             'qapi/stats.json',
             'qapi/tpm.json',