[v2] virtio,pc,pci: features, cleanups

[PULL v2 27/78] vhost-user: flatten "enforce_reply" into "vhost_user_write_sync"

Michael S. Tsirkin posted 78 patches 1 year, 1 month ago

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Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Raphael Norwitz <raphael.norwitz@nutanix.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Albert Esteve <aesteve@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Peter Xu <peterx@redhat.com>, Jason Wang <jasowang@redhat.com>, "Hervé Poussineau" <hpoussin@reactos.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Fam Zheng <fam@euphon.net>, "Eugenio Pérez" <eperezma@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, Viresh Kumar <viresh.kumar@linaro.org>, David Hildenbrand <david@redhat.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Thomas Huth <thuth@redhat.com>, Yanan Wang <wangyanan55@huawei.com>

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[PULL v2 27/78] vhost-user: flatten "enforce_reply" into "vhost_user_write_sync"

Posted by Michael S. Tsirkin 1 year, 1 month ago

From: Laszlo Ersek <lersek@redhat.com>

At this point, only "vhost_user_write_sync" calls "enforce_reply"; embed
the latter into the former.

This is purely refactoring -- no observable change.

Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20231002203221.17241-5-lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/virtio/vhost-user.c | 32 +++++++++++++-------------------
 1 file changed, 13 insertions(+), 19 deletions(-)

diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index 95dbf9880c..23e9039922 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -1292,24 +1292,6 @@ static int vhost_user_get_features(struct vhost_dev *dev, uint64_t *features)
     return 0;
 }
 
-static int enforce_reply(struct vhost_dev *dev,
-                         const VhostUserMsg *msg)
-{
-    uint64_t dummy;
-
-    if (msg->hdr.flags & VHOST_USER_NEED_REPLY_MASK) {
-        return process_message_reply(dev, msg);
-    }
-
-   /*
-    * We need to wait for a reply but the backend does not
-    * support replies for the command we just sent.
-    * Send VHOST_USER_GET_FEATURES which makes all backends
-    * send a reply.
-    */
-    return vhost_user_get_features(dev, &dummy);
-}
-
 /* Note: "msg->hdr.flags" may be modified. */
 static int vhost_user_write_sync(struct vhost_dev *dev, VhostUserMsg *msg,
                                  bool wait_for_reply)
@@ -1330,7 +1312,19 @@ static int vhost_user_write_sync(struct vhost_dev *dev, VhostUserMsg *msg,
     }
 
     if (wait_for_reply) {
-        return enforce_reply(dev, msg);
+        uint64_t dummy;
+
+        if (msg->hdr.flags & VHOST_USER_NEED_REPLY_MASK) {
+            return process_message_reply(dev, msg);
+        }
+
+       /*
+        * We need to wait for a reply but the backend does not
+        * support replies for the command we just sent.
+        * Send VHOST_USER_GET_FEATURES which makes all backends
+        * send a reply.
+        */
+        return vhost_user_get_features(dev, &dummy);
     }
 
     return 0;
-- 
MST