From: arikachen <eaglesora@gmail.com>
Date: Tue, 28 Sep 2021 10:43:44 +0000 (+0800)
Subject: af_xdp: fix free mem in tx while no free slot
X-Git-Tag: v22.06-rc0~495
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=ca92091f95b34c75c5f810b6f967ca115671d907;p=vpp.git

af_xdp: fix free mem in tx while no free slot

Type: fix

Signed-off-by: arikachen <eaglesora@gmail.com>
Change-Id: Id305b9d311b2d0d11583db1a14a45d9187a1e628
---

diff --git a/src/plugins/af_xdp/output.c b/src/plugins/af_xdp/output.c
index 51a56ed866d..aac5df0325b 100644
--- a/src/plugins/af_xdp/output.c
+++ b/src/plugins/af_xdp/output.c
@@ -231,9 +231,9 @@ VNET_DEVICE_CLASS_TX_FN (af_xdp_device_class) (vlib_main_t * vm,
     {
       u32 n_enq;
       af_xdp_device_output_free (vm, node, txq);
-      n_enq = af_xdp_device_output_tx_try (vm, node, ad, txq, n_tx - n, from);
+      n_enq =
+	af_xdp_device_output_tx_try (vm, node, ad, txq, n_tx - n, from + n);
       n += n_enq;
-      from += n_enq;
     }
 
   af_xdp_device_output_tx_db (vm, node, ad, txq, n);