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From d7f0078e3a3d838b4ec6a87dca62771246e53db6 Mon Sep 17 00:00:00 2001
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From: Maxime Coquelin <maxime.coquelin@redhat.com>
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Date: Wed, 13 Dec 2017 09:51:07 +0100
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Subject: [PATCH 2/6] vhost: propagate set features handling error
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Not propagating VHOST_USER_SET_FEATURES request handling
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error may result in unpredictable behavior, as host and
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guests features may no more be synchronized.
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This patch fixes this by reporting the error to the upper
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layer, which would result in the device being destroyed
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and the connection with the master to be closed.
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Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
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Acked-by: Laszlo Ersek <lersek@redhat.com>
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Acked-by: Yuanhan Liu <yliu@fridaylinux.org>
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(cherry picked from commit 59fe5e17d9308b008ffa22ea250ddd363c84c3b5)
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Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
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---
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dpdk-17.11/lib/librte_vhost/vhost_user.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/dpdk-17.11/lib/librte_vhost/vhost_user.c b/dpdk-17.11/lib/librte_vhost/vhost_user.c
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index 545dbcb2b..471b1612c 100644
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--- a/dpdk-17.11/lib/librte_vhost/vhost_user.c
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+++ b/dpdk-17.11/lib/librte_vhost/vhost_user.c
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@@ -1263,7 +1263,9 @@ vhost_user_msg_handler(int vid, int fd)
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send_vhost_reply(fd, &msg;;
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break;
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case VHOST_USER_SET_FEATURES:
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- vhost_user_set_features(dev, msg.payload.u64);
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+ ret = vhost_user_set_features(dev, msg.payload.u64);
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+ if (ret)
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+ return -1;
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break;
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case VHOST_USER_GET_PROTOCOL_FEATURES:
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--
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2.14.3
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