[PATCH v3] vhost-user: Do not wait for reply for not sent VHOST_USER_SET_LOG_BASE

[BillXiang]

From: BillXiang <xiangwencheng@dayudpu.com>

Currently, we have added VHOST_USER_SET_LOG_BASE to 
vhost_user_per_device_request in commit 7c211eb078c4 
("vhost-user: Skip unnecessary duplicated VHOST_USER_SET_LOG_BASE requests"), 
as a result, VHOST_USER_SET_LOG_BASE will be sent only once 
when 'vq_index == 0'.
In this patch we add the check of 'vq_index == 0' before 
vhost_user_read, such that we do not wait for reply for not
sent VHOST_USER_SET_LOG_BASE.

Signed-off-by: BillXiang <xiangwencheng@dayudpu.com>
---
 hw/virtio/vhost-user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index 00561daa06..fd12992d15 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -460,7 +460,7 @@ static int vhost_user_set_log_base(struct vhost_dev *dev, 
uint64_t base,
         return ret;
     }
 
-    if (shmfd) {
+    if (shmfd && (dev->vq_index == 0)) {
         msg.hdr.size = 0;
         ret = vhost_user_read(dev, &msg);
         if (ret < 0) {
-- 
2.30.0