ip: add support for buffer offload metadata in ip midchain

[vpp.git] / src / vnet / adj / adj_nbr.c

diff --git a/src/vnet/adj/adj_nbr.c b/src/vnet/adj/adj_nbr.c
index 293bade..b3a027b 100644 (file)
--- a/src/vnet/adj/adj_nbr.c
+++ b/src/vnet/adj/adj_nbr.c
@@ -532,7 +532,7 @@ adj_nbr_update_rewrite_internal (ip_adjacency_t *adj,
 
        fib_walk_sync(FIB_NODE_TYPE_ADJ, walk_ai, &bw_ctx);
        /*
-        * fib_walk_sync may allocate a new adjacency and potentially cuase a
+        * fib_walk_sync may allocate a new adjacency and potentially cause a
         * realloc for adj_pool. When that happens, adj pointer is no longer
         * valid here. We refresh the adj pointer accordingly.
         */
@@ -600,7 +600,7 @@ adj_nbr_update_rewrite_internal (ip_adjacency_t *adj,
         walk_adj->ia_flags &= ~ADJ_FLAG_SYNC_WALK_ACTIVE;
     }
 
-    adj_delegate_adj_modified(adj);
+    adj_delegate_adj_modified(adj_get(ai));
     adj_unlock(ai);
     adj_unlock(walk_ai);
 }
@@ -793,9 +793,15 @@ adj_nbr_interface_state_change_one (adj_index_t ai,
     adj_lock (ai);
 
     adj = adj_get(ai);
-
     adj->ia_flags |= ADJ_FLAG_SYNC_WALK_ACTIVE;
     fib_walk_sync(FIB_NODE_TYPE_ADJ, ai, &bw_ctx);
+
+    /*
+     * fib_walk_sync may allocate a new adjacency and potentially cause a
+     * realloc for adj_pool. When that happens, adj pointer is no longer
+     * valid here. We refresh the adj pointer accordingly.
+     */
+    adj = adj_get(ai);
     adj->ia_flags &= ~ADJ_FLAG_SYNC_WALK_ACTIVE;
 
     adj_unlock (ai);
@@ -903,9 +909,15 @@ adj_nbr_interface_delete_one (adj_index_t ai,
     adj_lock(ai);
 
     adj = adj_get(ai);
-
     adj->ia_flags |= ADJ_FLAG_SYNC_WALK_ACTIVE;
     fib_walk_sync(FIB_NODE_TYPE_ADJ, ai, &bw_ctx);
+
+    /*
+     * fib_walk_sync may allocate a new adjacency and potentially cause a
+     * realloc for adj_pool. When that happens, adj pointer is no longer
+     * valid here. We refresh the adj pointer accordingly.
+     */
+    adj = adj_get(ai);
     adj->ia_flags &= ~ADJ_FLAG_SYNC_WALK_ACTIVE;
 
     adj_unlock(ai);