ip: reassembly cleanup 21/33321/5
authorKlement Sekera <ksekera@cisco.com>
Mon, 2 Aug 2021 14:14:15 +0000 (16:14 +0200)
committerOle Tr�an <otroan@employees.org>
Tue, 17 Aug 2021 16:15:08 +0000 (16:15 +0000)
Remove unused parameters and fix warnings.

Type: fix
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Change-Id: I2d0e7b84b56817999283ecb6be606159dcb26a28

src/vnet/ip/reass/ip4_full_reass.c
src/vnet/ip/reass/ip4_sv_reass.c
src/vnet/ip/reass/ip6_full_reass.c
src/vnet/ip/reass/ip6_sv_reass.c

index fda73a4..d2069c0 100644 (file)
@@ -335,7 +335,6 @@ format_ip4_full_reass_trace (u8 * s, va_list * args)
 
 static void
 ip4_full_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
-                         ip4_full_reass_main_t * rm,
                          ip4_full_reass_t * reass, u32 bi,
                          ip4_full_reass_trace_operation_e action,
                          u32 size_diff, u32 thread_id_to)
@@ -413,8 +412,8 @@ ip4_full_reass_free (ip4_full_reass_main_t * rm,
 }
 
 always_inline void
-ip4_full_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
-                        ip4_full_reass_main_t * rm, ip4_full_reass_t * reass)
+ip4_full_reass_drop_all (vlib_main_t *vm, vlib_node_runtime_t *node,
+                        ip4_full_reass_t *reass)
 {
   u32 range_bi = reass->first_bi;
   vlib_buffer_t *range_b;
@@ -511,7 +510,7 @@ again:
 
       if (now > reass->last_heard + rm->timeout)
        {
-         ip4_full_reass_drop_all (vm, node, rm, reass);
+         ip4_full_reass_drop_all (vm, node, reass);
          ip4_full_reass_free (rm, rt, reass);
          reass = NULL;
        }
@@ -717,8 +716,8 @@ ip4_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
   first_b->flags &= ~VLIB_BUFFER_EXT_HDR_VALID;
   if (PREDICT_FALSE (first_b->flags & VLIB_BUFFER_IS_TRACED))
     {
-      ip4_full_reass_add_trace (vm, node, rm, reass, reass->first_bi,
-                               FINALIZE, 0, ~0);
+      ip4_full_reass_add_trace (vm, node, reass, reass->first_bi, FINALIZE, 0,
+                               ~0);
 #if 0
       // following code does a hexdump of packet fragments to stdout ...
       do
@@ -764,8 +763,6 @@ ip4_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
 
 always_inline ip4_full_reass_rc_t
 ip4_full_reass_insert_range_in_chain (vlib_main_t * vm,
-                                     ip4_full_reass_main_t * rm,
-                                     ip4_full_reass_per_thread_t * rt,
                                      ip4_full_reass_t * reass,
                                      u32 prev_range_bi, u32 new_next_bi)
 {
@@ -799,7 +796,6 @@ ip4_full_reass_insert_range_in_chain (vlib_main_t * vm,
 always_inline ip4_full_reass_rc_t
 ip4_full_reass_remove_range_from_chain (vlib_main_t * vm,
                                        vlib_node_runtime_t * node,
-                                       ip4_full_reass_main_t * rm,
                                        ip4_full_reass_t * reass,
                                        u32 prev_range_bi, u32 discard_bi)
 {
@@ -831,8 +827,8 @@ ip4_full_reass_remove_range_from_chain (vlib_main_t * vm,
       u32 to_be_freed_bi = discard_bi;
       if (PREDICT_FALSE (discard_b->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_full_reass_add_trace (vm, node, rm, reass, discard_bi,
-                                   RANGE_DISCARD, 0, ~0);
+         ip4_full_reass_add_trace (vm, node, reass, discard_bi, RANGE_DISCARD,
+                                   0, ~0);
        }
       if (discard_b->flags & VLIB_BUFFER_NEXT_PRESENT)
        {
@@ -890,16 +886,14 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
     {
       // starting a new reassembly
       rc =
-       ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
-                                             prev_range_bi, *bi0);
+       ip4_full_reass_insert_range_in_chain (vm, reass, prev_range_bi, *bi0);
       if (IP4_REASS_RC_OK != rc)
        {
          return rc;
        }
       if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_full_reass_add_trace (vm, node, rm, reass, *bi0, RANGE_NEW, 0,
-                                   ~0);
+         ip4_full_reass_add_trace (vm, node, reass, *bi0, RANGE_NEW, 0, ~0);
        }
       *bi0 = ~0;
       reass->min_fragment_length = clib_net_to_host_u16 (fip->length);
@@ -922,9 +916,8 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
              ~0 == candidate_range_bi)
            {
              // special case - this fragment falls beyond all known ranges
-             rc =
-               ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
-                                                     prev_range_bi, *bi0);
+             rc = ip4_full_reass_insert_range_in_chain (vm, reass,
+                                                        prev_range_bi, *bi0);
              if (IP4_REASS_RC_OK != rc)
                {
                  return rc;
@@ -937,9 +930,8 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
       if (fragment_last < candidate_vnb->ip.reass.range_first)
        {
          // this fragment ends before candidate range without any overlap
-         rc =
-           ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
-                                                 prev_range_bi, *bi0);
+         rc = ip4_full_reass_insert_range_in_chain (vm, reass, prev_range_bi,
+                                                    *bi0);
          if (IP4_REASS_RC_OK != rc)
            {
              return rc;
@@ -954,7 +946,7 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
              // this fragment is a (sub)part of existing range, ignore it
              if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
                {
-                 ip4_full_reass_add_trace (vm, node, rm, reass, *bi0,
+                 ip4_full_reass_add_trace (vm, node, reass, *bi0,
                                            RANGE_OVERLAP, 0, ~0);
                }
              break;
@@ -974,14 +966,12 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
                  reass->data_len -= overlap;
                  if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
                    {
-                     ip4_full_reass_add_trace (vm, node, rm, reass,
+                     ip4_full_reass_add_trace (vm, node, reass,
                                                candidate_range_bi,
                                                RANGE_SHRINK, 0, ~0);
                    }
-                 rc =
-                   ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
-                                                         prev_range_bi,
-                                                         *bi0);
+                 rc = ip4_full_reass_insert_range_in_chain (
+                   vm, reass, prev_range_bi, *bi0);
                  if (IP4_REASS_RC_OK != rc)
                    {
                      return rc;
@@ -1010,11 +1000,8 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
                  else
                    {
                      // special case - last range discarded
-                     rc =
-                       ip4_full_reass_insert_range_in_chain (vm, rm, rt,
-                                                             reass,
-                                                             candidate_range_bi,
-                                                             *bi0);
+                     rc = ip4_full_reass_insert_range_in_chain (
+                       vm, reass, candidate_range_bi, *bi0);
                      if (IP4_REASS_RC_OK != rc)
                        {
                          return rc;
@@ -1035,10 +1022,8 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
            {
              u32 next_range_bi = candidate_vnb->ip.reass.next_range_bi;
              // discard candidate range, probe next range
-             rc =
-               ip4_full_reass_remove_range_from_chain (vm, node, rm, reass,
-                                                       prev_range_bi,
-                                                       candidate_range_bi);
+             rc = ip4_full_reass_remove_range_from_chain (
+               vm, node, reass, prev_range_bi, candidate_range_bi);
              if (IP4_REASS_RC_OK != rc)
                {
                  return rc;
@@ -1051,10 +1036,8 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
              else
                {
                  // special case - last range discarded
-                 rc =
-                   ip4_full_reass_insert_range_in_chain (vm, rm, rt, reass,
-                                                         prev_range_bi,
-                                                         *bi0);
+                 rc = ip4_full_reass_insert_range_in_chain (
+                   vm, reass, prev_range_bi, *bi0);
                  if (IP4_REASS_RC_OK != rc)
                    {
                      return rc;
@@ -1070,8 +1053,7 @@ ip4_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
     {
       if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_full_reass_add_trace (vm, node, rm, reass, *bi0, RANGE_NEW, 0,
-                                   ~0);
+         ip4_full_reass_add_trace (vm, node, reass, *bi0, RANGE_NEW, 0, ~0);
        }
     }
   if (~0 != reass->last_packet_octet &&
@@ -1207,14 +1189,14 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
                  vlib_node_increment_counter (vm, node->node_index,
                                               IP4_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
                                               1);
-                 ip4_full_reass_drop_all (vm, node, rm, reass);
+                 ip4_full_reass_drop_all (vm, node, reass);
                  ip4_full_reass_free (rm, rt, reass);
                  goto next_packet;
                  break;
                case IP4_REASS_RC_NO_BUF:
                  vlib_node_increment_counter (vm, node->node_index,
                                               IP4_ERROR_REASS_NO_BUF, 1);
-                 ip4_full_reass_drop_all (vm, node, rm, reass);
+                 ip4_full_reass_drop_all (vm, node, reass);
                  ip4_full_reass_free (rm, rt, reass);
                  goto next_packet;
                  break;
@@ -1223,7 +1205,7 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
                  vlib_node_increment_counter (vm, node->node_index,
                                               IP4_ERROR_REASS_INTERNAL_ERROR,
                                               1);
-                 ip4_full_reass_drop_all (vm, node, rm, reass);
+                 ip4_full_reass_drop_all (vm, node, reass);
                  ip4_full_reass_free (rm, rt, reass);
                  goto next_packet;
                  break;
@@ -1255,10 +1237,9 @@ ip4_full_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
                {
                  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                    {
-                     ip4_full_reass_add_trace (vm, node, rm, NULL, bi0,
-                                               HANDOFF, 0,
-                                               vnet_buffer (b0)->ip.
-                                               reass.owner_thread_index);
+                     ip4_full_reass_add_trace (
+                       vm, node, NULL, bi0, HANDOFF, 0,
+                       vnet_buffer (b0)->ip.reass.owner_thread_index);
                    }
                }
              else if (FEATURE == type && IP4_ERROR_NONE == error0)
@@ -1296,7 +1277,6 @@ VLIB_NODE_FN (ip4_full_reass_node) (vlib_main_t * vm,
   return ip4_full_reass_inline (vm, node, frame, NORMAL);
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_full_reass_node) = {
     .name = "ip4-full-reassembly",
     .vector_size = sizeof (u32),
@@ -1312,7 +1292,6 @@ VLIB_REGISTER_NODE (ip4_full_reass_node) = {
 
         },
 };
-/* *INDENT-ON* */
 
 VLIB_NODE_FN (ip4_full_reass_node_feature) (vlib_main_t * vm,
                                            vlib_node_runtime_t * node,
@@ -1321,7 +1300,6 @@ VLIB_NODE_FN (ip4_full_reass_node_feature) (vlib_main_t * vm,
   return ip4_full_reass_inline (vm, node, frame, FEATURE);
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_full_reass_node_feature) = {
     .name = "ip4-full-reassembly-feature",
     .vector_size = sizeof (u32),
@@ -1336,9 +1314,7 @@ VLIB_REGISTER_NODE (ip4_full_reass_node_feature) = {
                 [IP4_FULL_REASS_NEXT_HANDOFF] = "ip4-full-reass-feature-hoff",
         },
 };
-/* *INDENT-ON* */
 
-/* *INDENT-OFF* */
 VNET_FEATURE_INIT (ip4_full_reass_feature, static) = {
     .arc_name = "ip4-unicast",
     .node_name = "ip4-full-reassembly-feature",
@@ -1346,7 +1322,6 @@ VNET_FEATURE_INIT (ip4_full_reass_feature, static) = {
                                   "ipsec4-input-feature"),
     .runs_after = 0,
 };
-/* *INDENT-ON* */
 
 VLIB_NODE_FN (ip4_full_reass_node_custom) (vlib_main_t * vm,
                                           vlib_node_runtime_t * node,
@@ -1355,7 +1330,6 @@ VLIB_NODE_FN (ip4_full_reass_node_custom) (vlib_main_t * vm,
   return ip4_full_reass_inline (vm, node, frame, CUSTOM);
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_full_reass_node_custom) = {
     .name = "ip4-full-reassembly-custom",
     .vector_size = sizeof (u32),
@@ -1370,9 +1344,7 @@ VLIB_REGISTER_NODE (ip4_full_reass_node_custom) = {
                 [IP4_FULL_REASS_NEXT_HANDOFF] = "ip4-full-reass-custom-hoff",
         },
 };
-/* *INDENT-ON* */
 
-/* *INDENT-OFF* */
 VNET_FEATURE_INIT (ip4_full_reass_custom, static) = {
     .arc_name = "ip4-unicast",
     .node_name = "ip4-full-reassembly-feature",
@@ -1381,7 +1353,6 @@ VNET_FEATURE_INIT (ip4_full_reass_custom, static) = {
     .runs_after = 0,
 };
 
-/* *INDENT-ON* */
 
 #ifndef CLIB_MARCH_VARIANT
 uword
@@ -1542,8 +1513,8 @@ VLIB_INIT_FUNCTION (ip4_full_reass_init_function);
 #endif /* CLIB_MARCH_VARIANT */
 
 static uword
-ip4_full_reass_walk_expired (vlib_main_t * vm,
-                            vlib_node_runtime_t * node, vlib_frame_t * f)
+ip4_full_reass_walk_expired (vlib_main_t *vm, vlib_node_runtime_t *node,
+                            CLIB_UNUSED (vlib_frame_t *f))
 {
   ip4_full_reass_main_t *rm = &ip4_full_reass_main;
   uword event_type, *event_data = 0;
@@ -1558,10 +1529,11 @@ ip4_full_reass_walk_expired (vlib_main_t * vm,
 
       switch (event_type)
        {
-       case ~0:                /* no events => timeout */
-         /* nothing to do here */
-         break;
+       case ~0:
+         /* no events => timeout */
+         /* fallthrough */
        case IP4_EVENT_CONFIG_CHANGED:
+         /* nothing to do here */
          break;
        default:
          clib_warning ("BUG: event type 0x%wx", event_type);
@@ -1582,7 +1554,6 @@ ip4_full_reass_walk_expired (vlib_main_t * vm,
          clib_spinlock_lock (&rt->lock);
 
          vec_reset_length (pool_indexes_to_free);
-          /* *INDENT-OFF* */
           pool_foreach_index (index, rt->pool)  {
                                 reass = pool_elt_at_index (rt->pool, index);
                                 if (now > reass->last_heard + rm->timeout)
@@ -1590,16 +1561,13 @@ ip4_full_reass_walk_expired (vlib_main_t * vm,
                                     vec_add1 (pool_indexes_to_free, index);
                                   }
                               }
-          /* *INDENT-ON* */
          int *i;
-          /* *INDENT-OFF* */
           vec_foreach (i, pool_indexes_to_free)
           {
             ip4_full_reass_t *reass = pool_elt_at_index (rt->pool, i[0]);
-            ip4_full_reass_drop_all (vm, node, rm, reass);
-            ip4_full_reass_free (rm, rt, reass);
-          }
-          /* *INDENT-ON* */
+           ip4_full_reass_drop_all (vm, node, reass);
+           ip4_full_reass_free (rm, rt, reass);
+         }
 
          clib_spinlock_unlock (&rt->lock);
        }
@@ -1614,7 +1582,6 @@ ip4_full_reass_walk_expired (vlib_main_t * vm,
   return 0;
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_full_reass_expire_node) = {
     .function = ip4_full_reass_walk_expired,
     .type = VLIB_NODE_TYPE_PROCESS,
@@ -1624,7 +1591,6 @@ VLIB_REGISTER_NODE (ip4_full_reass_expire_node) = {
     .error_strings = ip4_full_reass_error_strings,
 
 };
-/* *INDENT-ON* */
 
 static u8 *
 format_ip4_full_reass_key (u8 * s, va_list * args)
@@ -1702,11 +1668,9 @@ show_ip4_reass (vlib_main_t * vm,
       clib_spinlock_lock (&rt->lock);
       if (details)
        {
-          /* *INDENT-OFF* */
           pool_foreach (reass, rt->pool) {
             vlib_cli_output (vm, "%U", format_ip4_reass, vm, reass);
           }
-          /* *INDENT-ON* */
        }
       sum_reass_n += rt->reass_n;
       clib_spinlock_unlock (&rt->lock);
@@ -1730,13 +1694,11 @@ show_ip4_reass (vlib_main_t * vm,
   return 0;
 }
 
-/* *INDENT-OFF* */
 VLIB_CLI_COMMAND (show_ip4_full_reass_cmd, static) = {
     .path = "show ip4-full-reassembly",
     .short_help = "show ip4-full-reassembly [details]",
     .function = show_ip4_reass,
 };
-/* *INDENT-ON* */
 
 #ifndef CLIB_MARCH_VARIANT
 vnet_api_error_t
@@ -1858,7 +1820,6 @@ VLIB_NODE_FN (ip4_full_reass_handoff_node) (vlib_main_t * vm,
 }
 
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_full_reass_handoff_node) = {
   .name = "ip4-full-reassembly-handoff",
   .vector_size = sizeof (u32),
@@ -1872,10 +1833,8 @@ VLIB_REGISTER_NODE (ip4_full_reass_handoff_node) = {
     [0] = "error-drop",
   },
 };
-/* *INDENT-ON* */
 
 
-/* *INDENT-OFF* */
 VLIB_NODE_FN (ip4_full_reass_feature_handoff_node) (vlib_main_t * vm,
                                                    vlib_node_runtime_t *
                                                    node,
@@ -1883,10 +1842,8 @@ VLIB_NODE_FN (ip4_full_reass_feature_handoff_node) (vlib_main_t * vm,
 {
   return ip4_full_reass_handoff_node_inline (vm, node, frame, FEATURE);
 }
-/* *INDENT-ON* */
 
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_full_reass_feature_handoff_node) = {
   .name = "ip4-full-reass-feature-hoff",
   .vector_size = sizeof (u32),
@@ -1900,9 +1857,7 @@ VLIB_REGISTER_NODE (ip4_full_reass_feature_handoff_node) = {
     [0] = "error-drop",
   },
 };
-/* *INDENT-ON* */
 
-/* *INDENT-OFF* */
 VLIB_NODE_FN (ip4_full_reass_custom_handoff_node) (vlib_main_t * vm,
                                                    vlib_node_runtime_t *
                                                    node,
@@ -1910,10 +1865,8 @@ VLIB_NODE_FN (ip4_full_reass_custom_handoff_node) (vlib_main_t * vm,
 {
   return ip4_full_reass_handoff_node_inline (vm, node, frame, CUSTOM);
 }
-/* *INDENT-ON* */
 
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_full_reass_custom_handoff_node) = {
   .name = "ip4-full-reass-custom-hoff",
   .vector_size = sizeof (u32),
@@ -1927,7 +1880,6 @@ VLIB_REGISTER_NODE (ip4_full_reass_custom_handoff_node) = {
     [0] = "error-drop",
   },
 };
-/* *INDENT-ON* */
 
 #ifndef CLIB_MARCH_VARIANT
 int
index 9b3f1b9..cd5e19b 100644 (file)
@@ -229,10 +229,10 @@ format_ip4_sv_reass_trace (u8 * s, va_list * args)
 }
 
 static void
-ip4_sv_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
-                       ip4_sv_reass_main_t * rm, ip4_sv_reass_t * reass,
-                       u32 bi, ip4_sv_reass_trace_operation_e action,
-                       u32 ip_proto, u16 l4_src_port, u16 l4_dst_port)
+ip4_sv_reass_add_trace (vlib_main_t *vm, vlib_node_runtime_t *node,
+                       ip4_sv_reass_t *reass, u32 bi,
+                       ip4_sv_reass_trace_operation_e action, u32 ip_proto,
+                       u16 l4_src_port, u16 l4_dst_port)
 {
   vlib_buffer_t *b = vlib_get_buffer (vm, bi);
   if (pool_is_free_index
@@ -378,9 +378,9 @@ ip4_sv_reass_find_or_create (vlib_main_t * vm, ip4_sv_reass_main_t * rm,
 }
 
 always_inline ip4_sv_reass_rc_t
-ip4_sv_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
-                    ip4_sv_reass_main_t * rm, ip4_sv_reass_per_thread_t * rt,
-                    ip4_header_t * ip0, ip4_sv_reass_t * reass, u32 bi0)
+ip4_sv_reass_update (vlib_main_t *vm, vlib_node_runtime_t *node,
+                    ip4_sv_reass_main_t *rm, ip4_header_t *ip0,
+                    ip4_sv_reass_t *reass, u32 bi0)
 {
   vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
   ip4_sv_reass_rc_t rc = IP4_SV_REASS_RC_OK;
@@ -407,7 +407,7 @@ ip4_sv_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
       vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
       if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_sv_reass_add_trace (vm, node, rm, reass, bi0, REASS_FINISH,
+         ip4_sv_reass_add_trace (vm, node, reass, bi0, REASS_FINISH,
                                  reass->ip_proto, reass->l4_src_port,
                                  reass->l4_dst_port);
        }
@@ -417,8 +417,8 @@ ip4_sv_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
     {
       if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_sv_reass_add_trace (vm, node, rm, reass, bi0,
-                                 REASS_FRAGMENT_CACHE, ~0, ~0, ~0);
+         ip4_sv_reass_add_trace (vm, node, reass, bi0, REASS_FRAGMENT_CACHE,
+                                 ~0, ~0, ~0);
        }
       if (vec_len (reass->cached_buffers) > rm->max_reass_len)
        {
@@ -524,7 +524,7 @@ ip4_sv_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
       vnet_buffer (b0)->ip.reass.l4_dst_port = ip4_get_port (ip0, 0);
       if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_sv_reass_add_trace (vm, node, rm, NULL, from[(b - 2) - bufs],
+         ip4_sv_reass_add_trace (vm, node, NULL, from[(b - 2) - bufs],
                                  REASS_PASSTHROUGH,
                                  vnet_buffer (b0)->ip.reass.ip_proto,
                                  vnet_buffer (b0)->ip.reass.l4_src_port,
@@ -559,7 +559,7 @@ ip4_sv_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
       vnet_buffer (b1)->ip.reass.l4_dst_port = ip4_get_port (ip1, 0);
       if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_sv_reass_add_trace (vm, node, rm, NULL, from[(b - 1) - bufs],
+         ip4_sv_reass_add_trace (vm, node, NULL, from[(b - 1) - bufs],
                                  REASS_PASSTHROUGH,
                                  vnet_buffer (b1)->ip.reass.ip_proto,
                                  vnet_buffer (b1)->ip.reass.l4_src_port,
@@ -626,7 +626,7 @@ ip4_sv_reass_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
       vnet_buffer (b0)->ip.reass.l4_dst_port = ip4_get_port (ip0, 0);
       if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip4_sv_reass_add_trace (vm, node, rm, NULL, from[(b - 1) - bufs],
+         ip4_sv_reass_add_trace (vm, node, NULL, from[(b - 1) - bufs],
                                  REASS_PASSTHROUGH,
                                  vnet_buffer (b0)->ip.reass.ip_proto,
                                  vnet_buffer (b0)->ip.reass.l4_src_port,
@@ -697,13 +697,11 @@ slow_path:
              vnet_buffer (b0)->ip.reass.l4_dst_port = ip4_get_port (ip0, 0);
              if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                {
-                 ip4_sv_reass_add_trace (vm, node, rm, NULL, bi0,
-                                         REASS_PASSTHROUGH,
-                                         vnet_buffer (b0)->ip.reass.ip_proto,
-                                         vnet_buffer (b0)->ip.
-                                         reass.l4_src_port,
-                                         vnet_buffer (b0)->ip.
-                                         reass.l4_dst_port);
+                 ip4_sv_reass_add_trace (
+                   vm, node, NULL, bi0, REASS_PASSTHROUGH,
+                   vnet_buffer (b0)->ip.reass.ip_proto,
+                   vnet_buffer (b0)->ip.reass.l4_src_port,
+                   vnet_buffer (b0)->ip.reass.l4_dst_port);
                }
              goto packet_enqueue;
            }
@@ -771,17 +769,15 @@ slow_path:
              vnet_buffer (b0)->ip.reass.l4_dst_port = reass->l4_dst_port;
              if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                {
-                 ip4_sv_reass_add_trace (vm, node, rm, reass, bi0,
-                                         REASS_FRAGMENT_FORWARD,
-                                         reass->ip_proto,
-                                         reass->l4_src_port,
-                                         reass->l4_dst_port);
+                 ip4_sv_reass_add_trace (
+                   vm, node, reass, bi0, REASS_FRAGMENT_FORWARD,
+                   reass->ip_proto, reass->l4_src_port, reass->l4_dst_port);
                }
              goto packet_enqueue;
            }
 
          ip4_sv_reass_rc_t rc =
-           ip4_sv_reass_update (vm, node, rm, rt, ip0, reass, bi0);
+           ip4_sv_reass_update (vm, node, rm, ip0, reass, bi0);
          switch (rc)
            {
            case IP4_SV_REASS_RC_OK:
@@ -796,8 +792,7 @@ slow_path:
              break;
            case IP4_SV_REASS_RC_UNSUPP_IP_PROTO:
              vlib_node_increment_counter (vm, node->node_index,
-                                          IP4_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
-                                          1);
+                                          IP4_ERROR_REASS_UNSUPP_IP_PROT, 1);
              ip4_sv_reass_free (vm, rm, rt, reass);
              goto next_packet;
              break;
@@ -846,11 +841,9 @@ slow_path:
                vnet_buffer (b0)->ip.reass.l4_dst_port = reass->l4_dst_port;
                if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                  {
-                   ip4_sv_reass_add_trace (vm, node, rm, reass, bi0,
-                                           REASS_FRAGMENT_FORWARD,
-                                           reass->ip_proto,
-                                           reass->l4_src_port,
-                                           reass->l4_dst_port);
+                   ip4_sv_reass_add_trace (
+                     vm, node, reass, bi0, REASS_FRAGMENT_FORWARD,
+                     reass->ip_proto, reass->l4_src_port, reass->l4_dst_port);
                  }
                vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
                                                 to_next, n_left_to_next, bi0,
@@ -1170,8 +1163,9 @@ VLIB_INIT_FUNCTION (ip4_sv_reass_init_function);
 #endif /* CLIB_MARCH_VARIANT */
 
 static uword
-ip4_sv_reass_walk_expired (vlib_main_t * vm,
-                          vlib_node_runtime_t * node, vlib_frame_t * f)
+ip4_sv_reass_walk_expired (vlib_main_t *vm,
+                          CLIB_UNUSED (vlib_node_runtime_t *node),
+                          CLIB_UNUSED (vlib_frame_t *f))
 {
   ip4_sv_reass_main_t *rm = &ip4_sv_reass_main;
   uword event_type, *event_data = 0;
@@ -1186,10 +1180,11 @@ ip4_sv_reass_walk_expired (vlib_main_t * vm,
 
       switch (event_type)
        {
-       case ~0:                /* no events => timeout */
-         /* nothing to do here */
-         break;
+       case ~0:
+         /* no events => timeout */
+         /* fallthrough */
        case IP4_EVENT_CONFIG_CHANGED:
+         /* nothing to do here */
          break;
        default:
          clib_warning ("BUG: event type 0x%wx", event_type);
index 6750568..9ec40cd 100644 (file)
@@ -310,7 +310,6 @@ format_ip6_full_reass_trace (u8 * s, va_list * args)
 
 static void
 ip6_full_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
-                         ip6_full_reass_main_t * rm,
                          ip6_full_reass_t * reass, u32 bi,
                          ip6_frag_hdr_t * ip6_frag_header,
                          ip6_full_reass_trace_operation_e action,
@@ -398,8 +397,8 @@ ip6_full_reass_free (ip6_full_reass_main_t * rm,
 }
 
 always_inline void
-ip6_full_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
-                        ip6_full_reass_main_t * rm, ip6_full_reass_t * reass)
+ip6_full_reass_drop_all (vlib_main_t *vm, vlib_node_runtime_t *node,
+                        ip6_full_reass_t *reass)
 {
   u32 range_bi = reass->first_bi;
   vlib_buffer_t *range_b;
@@ -461,7 +460,6 @@ ip6_full_reass_drop_all (vlib_main_t * vm, vlib_node_runtime_t * node,
 
 always_inline void
 ip6_full_reass_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * node,
-                          ip6_full_reass_main_t * rm,
                           ip6_full_reass_t * reass, u32 * icmp_bi)
 {
   if (~0 == reass->first_bi)
@@ -476,8 +474,8 @@ ip6_full_reass_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * node,
          *icmp_bi = reass->first_bi;
          if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
            {
-             ip6_full_reass_add_trace (vm, node, rm, reass, reass->first_bi,
-                                       NULL, ICMP_ERROR_RT_EXCEEDED, ~0);
+             ip6_full_reass_add_trace (vm, node, reass, reass->first_bi, NULL,
+                                       ICMP_ERROR_RT_EXCEEDED, ~0);
            }
          // fragment with offset zero received - send icmp message back
          if (b->flags & VLIB_BUFFER_NEXT_PRESENT)
@@ -495,7 +493,7 @@ ip6_full_reass_on_timeout (vlib_main_t * vm, vlib_node_runtime_t * node,
                                       0);
        }
     }
-  ip6_full_reass_drop_all (vm, node, rm, reass);
+  ip6_full_reass_drop_all (vm, node, reass);
 }
 
 always_inline ip6_full_reass_t *
@@ -528,7 +526,7 @@ again:
 
       if (now > reass->last_heard + rm->timeout)
        {
-         ip6_full_reass_on_timeout (vm, node, rm, reass, icmp_bi);
+         ip6_full_reass_on_timeout (vm, node, reass, icmp_bi);
          ip6_full_reass_free (rm, rt, reass);
          reass = NULL;
        }
@@ -763,7 +761,7 @@ ip6_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node,
   first_b->flags &= ~VLIB_BUFFER_EXT_HDR_VALID;
   if (PREDICT_FALSE (first_b->flags & VLIB_BUFFER_IS_TRACED))
     {
-      ip6_full_reass_add_trace (vm, node, rm, reass, reass->first_bi, NULL,
+      ip6_full_reass_add_trace (vm, node, reass, reass->first_bi, NULL,
                                FINALIZE, ~0);
 #if 0
       // following code does a hexdump of packet fragments to stdout ...
@@ -811,8 +809,6 @@ free_buffers_and_return:
 
 always_inline void
 ip6_full_reass_insert_range_in_chain (vlib_main_t * vm,
-                                     ip6_full_reass_main_t * rm,
-                                     ip6_full_reass_per_thread_t * rt,
                                      ip6_full_reass_t * reass,
                                      u32 prev_range_bi, u32 new_next_bi)
 {
@@ -884,8 +880,7 @@ ip6_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
   if (~0 == reass->first_bi)
     {
       // starting a new reassembly
-      ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass, prev_range_bi,
-                                           *bi0);
+      ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi, *bi0);
       reass->min_fragment_length = clib_net_to_host_u16 (fip->payload_length);
       consumed = 1;
       reass->fragments_n = 1;
@@ -907,8 +902,8 @@ ip6_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
              ~0 == candidate_range_bi)
            {
              // special case - this fragment falls beyond all known ranges
-             ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass,
-                                                   prev_range_bi, *bi0);
+             ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi,
+                                                   *bi0);
              consumed = 1;
              break;
            }
@@ -917,8 +912,8 @@ ip6_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
       if (fragment_last < candidate_vnb->ip.reass.range_first)
        {
          // this fragment ends before candidate range without any overlap
-         ip6_full_reass_insert_range_in_chain (vm, rm, rt, reass,
-                                               prev_range_bi, *bi0);
+         ip6_full_reass_insert_range_in_chain (vm, reass, prev_range_bi,
+                                               *bi0);
          consumed = 1;
        }
       else if (fragment_first == candidate_vnb->ip.reass.range_first &&
@@ -931,10 +926,10 @@ ip6_full_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
          // overlapping fragment - not allowed by RFC 8200
          if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
            {
-             ip6_full_reass_add_trace (vm, node, rm, reass, *bi0, frag_hdr,
+             ip6_full_reass_add_trace (vm, node, reass, *bi0, frag_hdr,
                                        RANGE_OVERLAP, ~0);
            }
-         ip6_full_reass_drop_all (vm, node, rm, reass);
+         ip6_full_reass_drop_all (vm, node, reass);
          ip6_full_reass_free (rm, rt, reass);
          *next0 = IP6_FULL_REASSEMBLY_NEXT_DROP;
          *error0 = IP6_ERROR_REASS_OVERLAPPING_FRAGMENT;
@@ -948,8 +943,8 @@ check_if_done_maybe:
     {
       if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip6_full_reass_add_trace (vm, node, rm, reass, *bi0, frag_hdr,
-                                   RANGE_NEW, ~0);
+         ip6_full_reass_add_trace (vm, node, reass, *bi0, frag_hdr, RANGE_NEW,
+                                   ~0);
        }
     }
   if (~0 != reass->last_packet_octet &&
@@ -1010,7 +1005,6 @@ ip6_full_reass_verify_upper_layer_present (vlib_node_runtime_t * node,
 
 always_inline bool
 ip6_full_reass_verify_fragment_multiple_8 (vlib_main_t * vm,
-                                          vlib_node_runtime_t * node,
                                           vlib_buffer_t * b,
                                           ip6_frag_hdr_t * frag_hdr)
 {
@@ -1032,7 +1026,6 @@ ip6_full_reass_verify_fragment_multiple_8 (vlib_main_t * vm,
 
 always_inline bool
 ip6_full_reass_verify_packet_size_lt_64k (vlib_main_t * vm,
-                                         vlib_node_runtime_t * node,
                                          vlib_buffer_t * b,
                                          ip6_frag_hdr_t * frag_hdr)
 {
@@ -1111,10 +1104,8 @@ ip6_full_reassembly_inline (vlib_main_t * vm,
                  goto skip_reass;
                }
            }
-         if (!ip6_full_reass_verify_fragment_multiple_8
-             (vm, node, b0, frag_hdr)
-             || !ip6_full_reass_verify_packet_size_lt_64k (vm, node, b0,
-                                                           frag_hdr))
+         if (!ip6_full_reass_verify_fragment_multiple_8 (vm, b0, frag_hdr) ||
+             !ip6_full_reass_verify_packet_size_lt_64k (vm, b0, frag_hdr))
            {
              next0 = IP6_FULL_REASSEMBLY_NEXT_ICMP_ERROR;
              goto skip_reass;
@@ -1170,14 +1161,14 @@ ip6_full_reassembly_inline (vlib_main_t * vm,
                  vlib_node_increment_counter (vm, node->node_index,
                                               IP6_ERROR_REASS_FRAGMENT_CHAIN_TOO_LONG,
                                               1);
-                 ip6_full_reass_drop_all (vm, node, rm, reass);
+                 ip6_full_reass_drop_all (vm, node, reass);
                  ip6_full_reass_free (rm, rt, reass);
                  goto next_packet;
                  break;
                case IP6_FULL_REASS_RC_NO_BUF:
                  vlib_node_increment_counter (vm, node->node_index,
                                               IP6_ERROR_REASS_NO_BUF, 1);
-                 ip6_full_reass_drop_all (vm, node, rm, reass);
+                 ip6_full_reass_drop_all (vm, node, reass);
                  ip6_full_reass_free (rm, rt, reass);
                  goto next_packet;
                  break;
@@ -1185,7 +1176,7 @@ ip6_full_reassembly_inline (vlib_main_t * vm,
                  vlib_node_increment_counter (vm, node->node_index,
                                               IP6_ERROR_REASS_INTERNAL_ERROR,
                                               1);
-                 ip6_full_reass_drop_all (vm, node, rm, reass);
+                 ip6_full_reass_drop_all (vm, node, reass);
                  ip6_full_reass_free (rm, rt, reass);
                  goto next_packet;
                  break;
@@ -1223,10 +1214,9 @@ ip6_full_reassembly_inline (vlib_main_t * vm,
                {
                  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                    {
-                     ip6_full_reass_add_trace (vm, node, rm, NULL, bi0,
-                                               frag_hdr, HANDOFF,
-                                               vnet_buffer (b0)->ip.
-                                               reass.owner_thread_index);
+                     ip6_full_reass_add_trace (
+                       vm, node, NULL, bi0, frag_hdr, HANDOFF,
+                       vnet_buffer (b0)->ip.reass.owner_thread_index);
                    }
                }
              else if (is_feature && IP6_ERROR_NONE == error0)
@@ -1273,7 +1263,6 @@ VLIB_NODE_FN (ip6_full_reass_node) (vlib_main_t * vm,
                                     false /* is_custom_app */ );
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip6_full_reass_node) = {
     .name = "ip6-full-reassembly",
     .vector_size = sizeof (u32),
@@ -1289,7 +1278,6 @@ VLIB_REGISTER_NODE (ip6_full_reass_node) = {
                 [IP6_FULL_REASSEMBLY_NEXT_HANDOFF] = "ip6-full-reassembly-handoff",
         },
 };
-/* *INDENT-ON* */
 
 VLIB_NODE_FN (ip6_full_reass_node_feature) (vlib_main_t * vm,
                                            vlib_node_runtime_t * node,
@@ -1299,7 +1287,6 @@ VLIB_NODE_FN (ip6_full_reass_node_feature) (vlib_main_t * vm,
                                     false /* is_custom_app */ );
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip6_full_reass_node_feature) = {
     .name = "ip6-full-reassembly-feature",
     .vector_size = sizeof (u32),
@@ -1315,9 +1302,7 @@ VLIB_REGISTER_NODE (ip6_full_reass_node_feature) = {
                 [IP6_FULL_REASSEMBLY_NEXT_HANDOFF] = "ip6-full-reass-feature-hoff",
         },
 };
-/* *INDENT-ON* */
 
-/* *INDENT-OFF* */
 VNET_FEATURE_INIT (ip6_full_reassembly_feature, static) = {
     .arc_name = "ip6-unicast",
     .node_name = "ip6-full-reassembly-feature",
@@ -1325,7 +1310,6 @@ VNET_FEATURE_INIT (ip6_full_reassembly_feature, static) = {
                                   "ipsec6-input-feature"),
     .runs_after = 0,
 };
-/* *INDENT-ON* */
 
 #ifndef CLIB_MARCH_VARIANT
 static u32
@@ -1486,8 +1470,8 @@ VLIB_INIT_FUNCTION (ip6_full_reass_init_function);
 #endif /* CLIB_MARCH_VARIANT */
 
 static uword
-ip6_full_reass_walk_expired (vlib_main_t * vm,
-                            vlib_node_runtime_t * node, vlib_frame_t * f)
+ip6_full_reass_walk_expired (vlib_main_t *vm, vlib_node_runtime_t *node,
+                            CLIB_UNUSED (vlib_frame_t *f))
 {
   ip6_full_reass_main_t *rm = &ip6_full_reass_main;
   uword event_type, *event_data = 0;
@@ -1501,10 +1485,11 @@ ip6_full_reass_walk_expired (vlib_main_t * vm,
 
       switch (event_type)
        {
-       case ~0:                /* no events => timeout */
-         /* nothing to do here */
-         break;
+       case ~0:
+         /* no events => timeout */
+         /* fallthrough */
        case IP6_EVENT_CONFIG_CHANGED:
+         /* nothing to do here */
          break;
        default:
          clib_warning ("BUG: event type 0x%wx", event_type);
@@ -1526,7 +1511,6 @@ ip6_full_reass_walk_expired (vlib_main_t * vm,
          clib_spinlock_lock (&rt->lock);
 
          vec_reset_length (pool_indexes_to_free);
-          /* *INDENT-OFF* */
           pool_foreach_index (index, rt->pool)  {
                                 reass = pool_elt_at_index (rt->pool, index);
                                 if (now > reass->last_heard + rm->timeout)
@@ -1534,20 +1518,17 @@ ip6_full_reass_walk_expired (vlib_main_t * vm,
                                     vec_add1 (pool_indexes_to_free, index);
                                   }
                               }
-          /* *INDENT-ON* */
          int *i;
-          /* *INDENT-OFF* */
           vec_foreach (i, pool_indexes_to_free)
           {
             ip6_full_reass_t *reass = pool_elt_at_index (rt->pool, i[0]);
             u32 icmp_bi = ~0;
-            ip6_full_reass_on_timeout (vm, node, rm, reass, &icmp_bi);
-            if (~0 != icmp_bi)
-              vec_add1 (vec_icmp_bi, icmp_bi);
+           ip6_full_reass_on_timeout (vm, node, reass, &icmp_bi);
+           if (~0 != icmp_bi)
+             vec_add1 (vec_icmp_bi, icmp_bi);
 
-            ip6_full_reass_free (rm, rt, reass);
-          }
-          /* *INDENT-ON* */
+           ip6_full_reass_free (rm, rt, reass);
+         }
 
          clib_spinlock_unlock (&rt->lock);
        }
@@ -1586,7 +1567,6 @@ ip6_full_reass_walk_expired (vlib_main_t * vm,
   return 0;
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip6_full_reass_expire_node) = {
     .function = ip6_full_reass_walk_expired,
     .format_trace = format_ip6_full_reass_trace,
@@ -1597,7 +1577,6 @@ VLIB_REGISTER_NODE (ip6_full_reass_expire_node) = {
     .error_strings = ip6_full_reassembly_error_strings,
 
 };
-/* *INDENT-ON* */
 
 static u8 *
 format_ip6_full_reass_key (u8 * s, va_list * args)
@@ -1671,11 +1650,9 @@ show_ip6_full_reass (vlib_main_t * vm, unformat_input_t * input,
       clib_spinlock_lock (&rt->lock);
       if (details)
        {
-          /* *INDENT-OFF* */
           pool_foreach (reass, rt->pool) {
             vlib_cli_output (vm, "%U", format_ip6_full_reass, vm, reass);
           }
-          /* *INDENT-ON* */
        }
       sum_reass_n += rt->reass_n;
       clib_spinlock_unlock (&rt->lock);
@@ -1701,13 +1678,11 @@ show_ip6_full_reass (vlib_main_t * vm, unformat_input_t * input,
   return 0;
 }
 
-/* *INDENT-OFF* */
 VLIB_CLI_COMMAND (show_ip6_full_reassembly_cmd, static) = {
     .path = "show ip6-full-reassembly",
     .short_help = "show ip6-full-reassembly [details]",
     .function = show_ip6_full_reass,
 };
-/* *INDENT-ON* */
 
 #ifndef CLIB_MARCH_VARIANT
 vnet_api_error_t
@@ -1813,7 +1788,6 @@ VLIB_NODE_FN (ip6_full_reassembly_handoff_node) (vlib_main_t * vm,
                                             false /* is_feature */ );
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip6_full_reassembly_handoff_node) = {
   .name = "ip6-full-reassembly-handoff",
   .vector_size = sizeof (u32),
@@ -1836,7 +1810,6 @@ VLIB_NODE_FN (ip6_full_reassembly_feature_handoff_node) (vlib_main_t * vm,
 }
 
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip6_full_reassembly_feature_handoff_node) = {
   .name = "ip6-full-reass-feature-hoff",
   .vector_size = sizeof (u32),
@@ -1850,7 +1823,6 @@ VLIB_REGISTER_NODE (ip6_full_reassembly_feature_handoff_node) = {
     [0] = "error-drop",
   },
 };
-/* *INDENT-ON* */
 
 #ifndef CLIB_MARCH_VARIANT
 int
index d5218a4..2894131 100644 (file)
@@ -222,7 +222,6 @@ format_ip6_sv_reass_trace (u8 * s, va_list * args)
 
 static void
 ip6_sv_reass_add_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
-                       ip6_sv_reass_main_t * rm,
                        ip6_sv_reass_t * reass, u32 bi,
                        ip6_sv_reass_trace_operation_e action,
                        u32 ip_proto, u16 l4_src_port, u16 l4_dst_port)
@@ -303,11 +302,9 @@ ip6_sv_reass_init (ip6_sv_reass_t * reass)
 }
 
 always_inline ip6_sv_reass_t *
-ip6_sv_reass_find_or_create (vlib_main_t * vm, vlib_node_runtime_t * node,
-                            ip6_sv_reass_main_t * rm,
-                            ip6_sv_reass_per_thread_t * rt,
-                            ip6_sv_reass_kv_t * kv, u32 * icmp_bi,
-                            u8 * do_handoff)
+ip6_sv_reass_find_or_create (vlib_main_t *vm, ip6_sv_reass_main_t *rm,
+                            ip6_sv_reass_per_thread_t *rt,
+                            ip6_sv_reass_kv_t *kv, u8 *do_handoff)
 {
   ip6_sv_reass_t *reass = NULL;
   f64 now = vlib_time_now (vm);
@@ -381,10 +378,9 @@ ip6_sv_reass_find_or_create (vlib_main_t * vm, vlib_node_runtime_t * node,
 }
 
 always_inline ip6_sv_reass_rc_t
-ip6_sv_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
-                    ip6_sv_reass_main_t * rm, ip6_sv_reass_per_thread_t * rt,
-                    ip6_sv_reass_t * reass, u32 bi0,
-                    ip6_frag_hdr_t * frag_hdr)
+ip6_sv_reass_update (vlib_main_t *vm, vlib_node_runtime_t *node,
+                    ip6_sv_reass_main_t *rm, ip6_sv_reass_t *reass, u32 bi0,
+                    ip6_frag_hdr_t *frag_hdr)
 {
   vlib_buffer_t *fb = vlib_get_buffer (vm, bi0);
   vnet_buffer_opaque_t *fvnb = vnet_buffer (fb);
@@ -421,7 +417,7 @@ ip6_sv_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
       vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
       if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip6_sv_reass_add_trace (vm, node, rm, reass, bi0, REASS_FINISH,
+         ip6_sv_reass_add_trace (vm, node, reass, bi0, REASS_FINISH,
                                  reass->ip_proto, reass->l4_src_port,
                                  reass->l4_dst_port);
        }
@@ -431,9 +427,9 @@ ip6_sv_reass_update (vlib_main_t * vm, vlib_node_runtime_t * node,
     {
       if (PREDICT_FALSE (fb->flags & VLIB_BUFFER_IS_TRACED))
        {
-         ip6_sv_reass_add_trace (vm, node, rm, reass, bi0,
-                                 REASS_FRAGMENT_CACHE, reass->ip_proto,
-                                 reass->l4_src_port, reass->l4_dst_port);
+         ip6_sv_reass_add_trace (vm, node, reass, bi0, REASS_FRAGMENT_CACHE,
+                                 reass->ip_proto, reass->l4_src_port,
+                                 reass->l4_dst_port);
        }
       if (vec_len (reass->cached_buffers) > rm->max_reass_len)
        {
@@ -467,7 +463,6 @@ ip6_sv_reass_verify_upper_layer_present (vlib_node_runtime_t * node,
 
 always_inline bool
 ip6_sv_reass_verify_fragment_multiple_8 (vlib_main_t * vm,
-                                        vlib_node_runtime_t * node,
                                         vlib_buffer_t * b,
                                         ip6_frag_hdr_t * frag_hdr)
 {
@@ -489,7 +484,6 @@ ip6_sv_reass_verify_fragment_multiple_8 (vlib_main_t * vm,
 
 always_inline bool
 ip6_sv_reass_verify_packet_size_lt_64k (vlib_main_t * vm,
-                                       vlib_node_runtime_t * node,
                                        vlib_buffer_t * b,
                                        ip6_frag_hdr_t * frag_hdr)
 {
@@ -534,7 +528,6 @@ ip6_sv_reassembly_inline (vlib_main_t * vm,
          vlib_buffer_t *b0;
          u32 next0 = IP6_SV_REASSEMBLY_NEXT_DROP;
          u32 error0 = IP6_ERROR_NONE;
-         u32 icmp_bi = ~0;
 
          bi0 = from[0];
          b0 = vlib_get_buffer (vm, bi0);
@@ -570,13 +563,11 @@ ip6_sv_reassembly_inline (vlib_main_t * vm,
              next0 = IP6_SV_REASSEMBLY_NEXT_INPUT;
              if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                {
-                 ip6_sv_reass_add_trace (vm, node, rm, NULL, bi0,
-                                         REASS_PASSTHROUGH,
-                                         vnet_buffer (b0)->ip.reass.ip_proto,
-                                         vnet_buffer (b0)->ip.
-                                         reass.l4_src_port,
-                                         vnet_buffer (b0)->ip.
-                                         reass.l4_dst_port);
+                 ip6_sv_reass_add_trace (
+                   vm, node, NULL, bi0, REASS_PASSTHROUGH,
+                   vnet_buffer (b0)->ip.reass.ip_proto,
+                   vnet_buffer (b0)->ip.reass.l4_src_port,
+                   vnet_buffer (b0)->ip.reass.l4_dst_port);
                }
              goto packet_enqueue;
            }
@@ -592,10 +583,8 @@ ip6_sv_reassembly_inline (vlib_main_t * vm,
                  goto packet_enqueue;
                }
            }
-         if (!ip6_sv_reass_verify_fragment_multiple_8
-             (vm, node, b0, frag_hdr)
-             || !ip6_sv_reass_verify_packet_size_lt_64k (vm, node, b0,
-                                                         frag_hdr))
+         if (!ip6_sv_reass_verify_fragment_multiple_8 (vm, b0, frag_hdr) ||
+             !ip6_sv_reass_verify_packet_size_lt_64k (vm, b0, frag_hdr))
            {
              next0 = IP6_SV_REASSEMBLY_NEXT_ICMP_ERROR;
              goto packet_enqueue;
@@ -615,8 +604,7 @@ ip6_sv_reassembly_inline (vlib_main_t * vm,
          kv.k.as_u64[5] = ip0->protocol;
 
          ip6_sv_reass_t *reass =
-           ip6_sv_reass_find_or_create (vm, node, rm, rt, &kv, &icmp_bi,
-                                        &do_handoff);
+           ip6_sv_reass_find_or_create (vm, rm, rt, &kv, &do_handoff);
 
          if (PREDICT_FALSE (do_handoff))
            {
@@ -650,17 +638,14 @@ ip6_sv_reassembly_inline (vlib_main_t * vm,
              next0 = IP6_SV_REASSEMBLY_NEXT_INPUT;
              if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                {
-                 ip6_sv_reass_add_trace (vm, node, rm, reass, bi0,
-                                         REASS_FRAGMENT_FORWARD,
-                                         reass->ip_proto,
-                                         reass->l4_src_port,
-                                         reass->l4_dst_port);
+                 ip6_sv_reass_add_trace (
+                   vm, node, reass, bi0, REASS_FRAGMENT_FORWARD,
+                   reass->ip_proto, reass->l4_src_port, reass->l4_dst_port);
                }
              goto packet_enqueue;
            }
 
-         switch (ip6_sv_reass_update
-                 (vm, node, rm, rt, reass, bi0, frag_hdr))
+         switch (ip6_sv_reass_update (vm, node, rm, reass, bi0, frag_hdr))
            {
            case IP6_SV_REASS_RC_OK:
              /* nothing to do here */
@@ -724,11 +709,9 @@ ip6_sv_reassembly_inline (vlib_main_t * vm,
                vnet_buffer (b0)->ip.reass.l4_dst_port = reass->l4_dst_port;
                if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
                  {
-                   ip6_sv_reass_add_trace (vm, node, rm, reass, bi0,
-                                           REASS_FRAGMENT_FORWARD,
-                                           reass->ip_proto,
-                                           reass->l4_src_port,
-                                           reass->l4_dst_port);
+                   ip6_sv_reass_add_trace (
+                     vm, node, reass, bi0, REASS_FRAGMENT_FORWARD,
+                     reass->ip_proto, reass->l4_src_port, reass->l4_dst_port);
                  }
                vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
                                                 to_next, n_left_to_next, bi0,
@@ -750,17 +733,6 @@ ip6_sv_reassembly_inline (vlib_main_t * vm,
          vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
                                           n_left_to_next, bi0, next0);
 
-         if (~0 != icmp_bi)
-           {
-             next0 = IP6_SV_REASSEMBLY_NEXT_ICMP_ERROR;
-             to_next[0] = icmp_bi;
-             to_next += 1;
-             n_left_to_next -= 1;
-             vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
-                                              n_left_to_next, icmp_bi,
-                                              next0);
-           }
-
        next_packet:
          from += 1;
          n_left_from -= 1;
@@ -997,8 +969,9 @@ VLIB_INIT_FUNCTION (ip6_sv_reass_init_function);
 #endif /* CLIB_MARCH_VARIANT */
 
 static uword
-ip6_sv_reass_walk_expired (vlib_main_t * vm,
-                          vlib_node_runtime_t * node, vlib_frame_t * f)
+ip6_sv_reass_walk_expired (vlib_main_t *vm,
+                          CLIB_UNUSED (vlib_node_runtime_t *node),
+                          CLIB_UNUSED (vlib_frame_t *f))
 {
   ip6_sv_reass_main_t *rm = &ip6_sv_reass_main;
   uword event_type, *event_data = 0;
@@ -1012,10 +985,11 @@ ip6_sv_reass_walk_expired (vlib_main_t * vm,
 
       switch (event_type)
        {
-       case ~0:                /* no events => timeout */
-         /* nothing to do here */
-         break;
+       case ~0:
+         /* no events => timeout */
+         /* fallthrough */
        case IP6_EVENT_CONFIG_CHANGED:
+         /* nothing to do here */
          break;
        default:
          clib_warning ("BUG: event type 0x%wx", event_type);