From 8fb22fdade3633f1116c44b913934fcffe0d861b Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Wed, 17 Feb 2021 17:35:32 -0800 Subject: [PATCH] vcl: epoll out deq notifications only if fifo exists Type: fix Signed-off-by: Florin Coras Change-Id: Ia37d8474224f6074826c9ffb82feb919b2ef52f7 --- src/vcl/vppcom.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 80f0ad7b202..b576e1a8dd3 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -2658,10 +2658,13 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, s->vep.et_mask = VEP_DEFAULT_ET_MASK; s->vep.ev = *event; txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo; - if (event->events & EPOLLOUT) - svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); - else - svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + if (txf) + { + if (event->events & EPOLLOUT) + svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + else + svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + } VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!", vep_handle, session_handle, event->events, event->data.u64); break; -- 2.16.6