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List:       linux-virtualization
Subject:    [PATCH 3/8] virtio: console: Add a __send_control_msg() that can send
From:       Amit Shah <amit.shah () redhat ! com>
Date:       2010-03-23 13:05:11
Message-ID: 1269348796-8660-4-git-send-email-amit.shah () redhat ! com
[Download RAW message or body]

We will introduce control messages that operate on the device as a whole
rather than just ports. Make send_control_msg() a wrapper around
__send_control_msg() which does not need a valid port.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
---
 drivers/char/virtio_console.c |   16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index c7894f3..99c36d4 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -372,22 +372,22 @@ out:
 	return ret;
 }
 
-static ssize_t send_control_msg(struct port *port, unsigned int event,
-				unsigned int value)
+static ssize_t __send_control_msg(struct ports_device *portdev, u32 port_id,
+				  unsigned int event, unsigned int value)
 {
 	struct scatterlist sg[1];
 	struct virtio_console_control cpkt;
 	struct virtqueue *vq;
 	unsigned int len;
 
-	if (!use_multiport(port->portdev))
+	if (!use_multiport(portdev))
 		return 0;
 
-	cpkt.id = port->id;
+	cpkt.id = port_id;
 	cpkt.event = event;
 	cpkt.value = value;
 
-	vq = port->portdev->c_ovq;
+	vq = portdev->c_ovq;
 
 	sg_init_one(sg, &cpkt, sizeof(cpkt));
 	if (vq->vq_ops->add_buf(vq, sg, 1, 0, &cpkt) >= 0) {
@@ -398,6 +398,12 @@ static ssize_t send_control_msg(struct port *port, unsigned int event,
 	return 0;
 }
 
+static ssize_t send_control_msg(struct port *port, unsigned int event,
+				unsigned int value)
+{
+	return __send_control_msg(port->portdev, port->id, event, value);
+}
+
 static ssize_t send_buf(struct port *port, void *in_buf, size_t in_count)
 {
 	struct scatterlist sg[1];
-- 
1.6.2.5

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