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[Qemu-devel] [PATCH v4 1/6] virtio: Add typedef for handle_output


From: Fam Zheng
Subject: [Qemu-devel] [PATCH v4 1/6] virtio: Add typedef for handle_output
Date: Wed, 13 Jul 2016 13:09:43 +0800

The function pointer signature has been repeated a few times, using a
typedef may make coding easier.

Signed-off-by: Fam Zheng <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
---
 hw/virtio/virtio.c         | 9 ++++-----
 include/hw/virtio/virtio.h | 5 +++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 18153d5..2cc68d24 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -95,8 +95,8 @@ struct VirtQueue
     int inuse;
 
     uint16_t vector;
-    void (*handle_output)(VirtIODevice *vdev, VirtQueue *vq);
-    void (*handle_aio_output)(VirtIODevice *vdev, VirtQueue *vq);
+    VirtIOHandleOutput handle_output;
+    VirtIOHandleOutput handle_aio_output;
     VirtIODevice *vdev;
     EventNotifier guest_notifier;
     EventNotifier host_notifier;
@@ -1131,7 +1131,7 @@ void virtio_queue_set_vector(VirtIODevice *vdev, int n, 
uint16_t vector)
 }
 
 VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
-                            void (*handle_output)(VirtIODevice *, VirtQueue *))
+                            VirtIOHandleOutput handle_output)
 {
     int i;
 
@@ -1804,8 +1804,7 @@ static void 
virtio_queue_host_notifier_aio_read(EventNotifier *n)
 }
 
 void virtio_queue_aio_set_host_notifier_handler(VirtQueue *vq, AioContext *ctx,
-                                                void 
(*handle_output)(VirtIODevice *,
-                                                                      
VirtQueue *))
+                                                VirtIOHandleOutput 
handle_output)
 {
     if (handle_output) {
         vq->handle_aio_output = handle_output;
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 8a681f5..3670829 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -138,9 +138,10 @@ void virtio_cleanup(VirtIODevice *vdev);
 /* Set the child bus name. */
 void virtio_device_set_child_bus_name(VirtIODevice *vdev, char *bus_name);
 
+typedef void (*VirtIOHandleOutput)(VirtIODevice *, VirtQueue *);
+
 VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
-                            void (*handle_output)(VirtIODevice *,
-                                                  VirtQueue *));
+                            VirtIOHandleOutput handle_output);
 
 void virtio_del_queue(VirtIODevice *vdev, int n);
 
-- 
2.7.4




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