540 static struct bpf_map *trie_alloc(union bpf_attr *attr)  in trie_alloc()  argument
550 	if (attr->max_entries == 0 ||  in trie_alloc()
551 	    !(attr->map_flags & BPF_F_NO_PREALLOC) ||  in trie_alloc()
552 	    attr->map_flags & ~LPM_CREATE_FLAG_MASK ||  in trie_alloc()
553 	    !bpf_map_flags_access_ok(attr->map_flags) ||  in trie_alloc()
554 	    attr->key_size < LPM_KEY_SIZE_MIN ||  in trie_alloc()
555 	    attr->key_size > LPM_KEY_SIZE_MAX ||  in trie_alloc()
556 	    attr->value_size < LPM_VAL_SIZE_MIN ||  in trie_alloc()
557 	    attr->value_size > LPM_VAL_SIZE_MAX)  in trie_alloc()
565 	bpf_map_init_from_attr(&trie->map, attr);  in trie_alloc()
566 	trie->data_size = attr->key_size -  in trie_alloc()
571 			attr->value_size + trie->data_size;  in trie_alloc()
572 	cost += (u64) attr->max_entries * cost_per_node;  in trie_alloc()