xdp nit: utilize freeing API added in libknot 3.1

It's probably a bit more efficient, but this part of code should be
rarely used even on a resolver serving all in XDP.

diff --git a/daemon/worker.c b/daemon/worker.c
index 7397ca17493e6f7fdb430185487eb44d43705c7f..f14378e6f51890881b8362ac4f97e38596b59ac0 100644 (file)
--- a/daemon/worker.c
+++ b/daemon/worker.c
@@ -318,8 +318,13 @@ static void free_wire(const struct request_ctx *ctx)
        knot_xdp_msg_t out;
        out.payload.iov_base = ans->wire;
        out.payload.iov_len = 0;
-       uint32_t sent;
+       uint32_t sent = 0;
+#if KNOT_VERSION_HEX >= 0x030100
+       int ret = 0;
+       knot_xdp_send_free(xhd->socket, &out, 1);
+#else
        int ret = knot_xdp_send(xhd->socket, &out, 1, &sent);
+#endif
        kr_assert(ret == KNOT_EOK && sent == 0);
        kr_log_debug(XDP, "freed unsent buffer, ret = %d\n", ret);
 }