From: Jens Freimann <jfreim...@redhat.com>

Since commit 0f8c289ad "net: fix -netdev socket,fd= for UDP sockets"
we allow more than one parameter for -netdev socket. But now
we run into an assert when no parameter at all is specified

> qemu-system-x86_64 -netdev socket
socket.c:729: net_init_socket: Assertion `sock->has_udp' failed.

Fix this by reverting the change of the if condition done in 0f8c289ad.

Cc: Jason Wang <jasow...@redhat.com>
Cc: qemu-sta...@nongnu.org
Fixes: 0f8c289ad539feb5135c545bea947b310a893f4b
Reported-by: Mao Zhongyi <maozy.f...@cn.fujitsu.com>
Signed-off-by: Jens Freimann <jfreim...@redhat.com>
Signed-off-by: Jason Wang <jasow...@redhat.com>
(cherry picked from commit ff86d5762552787f1fcb7da695ec4f8c1be754b4)
 Conflicts:
        net/socket.c
* drop context dep on 0522a959
Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
---
 net/socket.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/socket.c b/net/socket.c
index 6664a75aa4..95060e5ca2 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -674,8 +674,8 @@ int net_init_socket(const Netdev *netdev, const char *name,
     assert(netdev->type == NET_CLIENT_DRIVER_SOCKET);
     sock = &netdev->u.socket;
 
-    if (sock->has_listen + sock->has_connect + sock->has_mcast +
-        sock->has_udp > 1) {
+    if (sock->has_fd + sock->has_listen + sock->has_connect + sock->has_mcast +
+        sock->has_udp != 1) {
         error_report("exactly one of listen=, connect=, mcast= or udp="
                      " is required");
         return -1;
-- 
2.11.0


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