Bluedroid stack dynamic allocation changes to optimise DRAM usage

Structures allocated dynamically:
tACL_CONN, tBTM_PM_MCB, tBTM_SEC_DEV_REC, tGATT_TCB, tGATT_CLCB, tL2C_LCB, tL2C_CCB, tSDP_RECORD
Total dynamic allocation size ~19KB.
Peak dram usage reduced by ~12KB when in BT classic + BLE scenario(1 a2dp sink + 1 BLE gatt server)

Author: Sushant-Espressif

components/bt/common/osi/include/osi/list.h

@@ -34,6 +34,10 @@ bool list_is_empty(const list_t *list);
 // |list| may not be NULL.
 bool list_contains(const list_t *list, const void *data);
 
+// Returns list_node which contains |data|, NULL otherwise.
+// |list| may not be NULL.
+list_node_t *list_get_node(const list_t *list, const void *data);
+
 // Returns the length of the |list|. |list| may not be NULL.
 size_t list_length(const list_t *list);
 

components/bt/common/osi/list.c

@@ -68,6 +68,21 @@ bool list_contains(const list_t *list, const void *data)
   return false;
 }
 
+list_node_t *list_get_node(const list_t *list, const void *data)
+{
+  assert(list != NULL);
+  assert(data != NULL);
+  list_node_t *p_node_ret = NULL;
+  for (list_node_t *node = list_begin(list); node != list_end(list); node = list_next(node)) {
+    if (list_node(node) == data) {
+      p_node_ret = node;
+      break;
+    }
+  }
+
+  return p_node_ret;
+}
+
 size_t list_length(const list_t *list)
 {
     assert(list != NULL);