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[Qemu-devel] [PULL 1/8] net: fix check for number of parameters to -netd

From: Jason Wang
Subject: [Qemu-devel] [PULL 1/8] net: fix check for number of parameters to -netdev socket
Date: Tue, 14 Nov 2017 10:11:31 +0800

From: Jens Freimann <address@hidden>

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 <address@hidden>
Cc: address@hidden
Fixes: 0f8c289ad539feb5135c545bea947b310a893f4b
Reported-by: Mao Zhongyi <address@hidden>
Signed-off-by: Jens Freimann <address@hidden>
Signed-off-by: Jason Wang <address@hidden>
 net/socket.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/socket.c b/net/socket.c
index e6b471c..83a2a31 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -695,8 +695,8 @@ 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_setg(errp, "exactly one of listen=, connect=, mcast= or udp="
                    " is required");
         return -1;

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