Fixes for 'make UNATTENDED=yes CC=clang CXX=clang verify'

Change-Id: I994649761fe2e66e12ae0e49a84fb1d0a966ddfb
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/ip/ip4_mtrie.c b/src/vnet/ip/ip4_mtrie.c
index 5981a3c..5aa9b92 100644
--- a/src/vnet/ip/ip4_mtrie.c
+++ b/src/vnet/ip/ip4_mtrie.c
@@ -755,8 +755,8 @@
     {
       if (ip4_fib_mtrie_leaf_is_non_empty (p, i))
 	{
-	  FORMAT_PLY (s, p, i, base_address,
-		      p->dst_address_bits_base + 8, indent);
+	  s = FORMAT_PLY (s, p, i, base_address,
+			  p->dst_address_bits_base + 8, indent);
 	}
     }
 
@@ -791,7 +791,7 @@
 
 	  if (p->dst_address_bits_of_leaves[slot] > 0)
 	    {
-	      FORMAT_PLY (s, p, slot, base_address, 16, 2);
+	      s = FORMAT_PLY (s, p, slot, base_address, 16, 2);
 	    }
 	}
     }
diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c
index 88b21d5..588cd06 100644
--- a/src/vnet/ip/ip6_forward.c
+++ b/src/vnet/ip/ip6_forward.c
@@ -2699,7 +2699,7 @@
   ip6_main_t *im = &ip6_main;
   ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main;
 
-  ASSERT (option < ARRAY_LEN (hm->options));
+  ASSERT ((u32) option < ARRAY_LEN (hm->options));
 
   /* Already registered */
   if (hm->options[option])
@@ -2720,7 +2720,7 @@
   ip6_main_t *im = &ip6_main;
   ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main;
 
-  ASSERT (option < ARRAY_LEN (hm->options));
+  ASSERT ((u32) option < ARRAY_LEN (hm->options));
 
   /* Not registered */
   if (!hm->options[option])
diff --git a/src/vnet/ip/ip6_hop_by_hop.c b/src/vnet/ip/ip6_hop_by_hop.c
index 90a4d21..355aba6 100644
--- a/src/vnet/ip/ip6_hop_by_hop.c
+++ b/src/vnet/ip/ip6_hop_by_hop.c
@@ -103,7 +103,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->add_options));
+  ASSERT ((u32) option < ARRAY_LEN (hm->add_options));
 
   /* Already registered */
   if (hm->add_options[option])
@@ -120,7 +120,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->add_options));
+  ASSERT ((u32) option < ARRAY_LEN (hm->add_options));
 
   /* Not registered */
   if (!hm->add_options[option])
@@ -138,7 +138,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->config_handler));
+  ASSERT ((u32) option < ARRAY_LEN (hm->config_handler));
 
   /* Already registered  */
   if (hm->config_handler[option])
@@ -154,7 +154,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->config_handler));
+  ASSERT ((u32) option < ARRAY_LEN (hm->config_handler));
 
   /* Not registered */
   if (!hm->config_handler[option])
@@ -171,7 +171,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->flow_handler));
+  ASSERT ((u32) option < ARRAY_LEN (hm->flow_handler));
 
   /* Already registered */
   if (hm->flow_handler[option])
@@ -187,7 +187,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->flow_handler));
+  ASSERT ((u32) option < ARRAY_LEN (hm->flow_handler));
 
   /* Not registered */
   if (!hm->flow_handler[option])
@@ -484,7 +484,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->pop_options));
+  ASSERT ((u32) option < ARRAY_LEN (hm->pop_options));
 
   /* Already registered */
   if (hm->pop_options[option])
@@ -500,7 +500,7 @@
 {
   ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
 
-  ASSERT (option < ARRAY_LEN (hm->pop_options));
+  ASSERT ((u32) option < ARRAY_LEN (hm->pop_options));
 
   /* Not registered */
   if (!hm->pop_options[option])