From: Florin Coras <fcoras@cisco.com>
Date: Thu, 10 Jun 2021 15:08:53 +0000 (-0700)
Subject: vcl: touch fifo on epoll del only if session open
X-Git-Tag: v22.02-rc0~330
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F78%2F32678%2F3;p=vpp.git

vcl: touch fifo on epoll del only if session open

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I0971c18a183319d09486459b0da08d44ce38acef
---

diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index 0c6f6e6bbfd..330d590cfa0 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -2878,9 +2878,12 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
       s->vep.vep_sh = ~0;
       s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
 
-      txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
-      if (txf)
-	svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
+      if (vcl_session_is_open (s))
+	{
+	  txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
+	  if (txf)
+	    svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
+	}
 
       VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
 	    session_handle);