qemu-kvm/kvm-failover-simplify-virtio_net_find_primary.patch

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From 24bd4b43c3f59c9c28f924da8ef7a9dacc0f2f52 Mon Sep 17 00:00:00 2001
From: Laurent Vivier <lvivier@redhat.com>
Date: Thu, 25 Feb 2021 23:14:33 -0500
Subject: [PATCH 36/54] failover: simplify virtio_net_find_primary()
RH-Author: Laurent Vivier <lvivier@redhat.com>
Message-id: <20210225231447.2187738-14-lvivier@redhat.com>
Patchwork-id: 101253
O-Subject: [RHEL-AV-8.4.0 qemu-kvm PATCH v2 13/27] failover: simplify virtio_net_find_primary()
Bugzilla: 1819991
RH-Acked-by: Juan Quintela <quintela@redhat.com>
RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
RH-Acked-by: Jens Freimann <jfreimann@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
From: Juan Quintela <quintela@redhat.com>
BZ: https://bugzilla.redhat.com/1819991
BRANCH: rhel-av-8.4.0
UPSTREAM: Merged
a - is_my_primary() never sets one error
b - If we return 1, primary_device_id is always set
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20201118083748.1328-15-quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 7cf05b7ed8e84e89b873701e3dfcd56aa81b2d13)
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/net/virtio-net.c | 18 +++---------------
1 file changed, 3 insertions(+), 15 deletions(-)
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 70fa372c08..881907d1bd 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -828,24 +828,12 @@ static int is_my_primary(void *opaque, QemuOpts *opts, Error **errp)
static DeviceState *virtio_net_find_primary(VirtIONet *n, Error **errp)
{
- DeviceState *dev = NULL;
Error *err = NULL;
- if (qemu_opts_foreach(qemu_find_opts("device"),
- is_my_primary, n, &err)) {
- if (err) {
- error_propagate(errp, err);
- return NULL;
- }
- if (n->primary_device_id) {
- dev = qdev_find_recursive(sysbus_get_default(),
- n->primary_device_id);
- } else {
- error_setg(errp, "Primary device id not found");
- return NULL;
- }
+ if (!qemu_opts_foreach(qemu_find_opts("device"), is_my_primary, n, &err)) {
+ return NULL;
}
- return dev;
+ return qdev_find_recursive(sysbus_get_default(), n->primary_device_id);
}
static DeviceState *virtio_connect_failover_devices(VirtIONet *n, Error **errp)
--
2.27.0