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Commit d24bae32 authored by stephen hemminger's avatar stephen hemminger Committed by David S. Miller
Browse files

virtio_net: remove unused parameter to send_command 



All the code passes NULL for the last sg list (in).
Simplify by just removing it.

Signed-off-by: default avatarStephen Hemminger <stephen@networkplumber.org>
Acked-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d73aa286

drivers/net/virtio_net.c

+13 −21
Original line number Diff line number Diff line
@@ -876,13 +876,12 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) 
 * never fail unless improperly formated.

 */

static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,

				 struct scatterlist *out,

				 struct scatterlist *in)

				 struct scatterlist *out)

{

	struct scatterlist *sgs[4], hdr, stat;

	struct virtio_net_ctrl_hdr ctrl;

	virtio_net_ctrl_ack status = ~0;

	unsigned out_num = 0, in_num = 0, tmp;

	unsigned out_num = 0, tmp;



	/* Caller should know better */

	BUG_ON(!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ));
@@ -895,16 +894,13 @@ static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd, 


	if (out)

		sgs[out_num++] = out;

	if (in)

		sgs[out_num + in_num++] = in;



	/* Add return status. */

	sg_init_one(&stat, &status, sizeof(status));

	sgs[out_num + in_num++] = &stat;

	sgs[out_num] = &stat;



	BUG_ON(out_num + in_num > ARRAY_SIZE(sgs));

	BUG_ON(virtqueue_add_sgs(vi->cvq, sgs, out_num, in_num, vi, GFP_ATOMIC)

	       < 0);

	BUG_ON(out_num + 1 > ARRAY_SIZE(sgs));

	BUG_ON(virtqueue_add_sgs(vi->cvq, sgs, out_num, 1, vi, GFP_ATOMIC) < 0);



	if (unlikely(!virtqueue_kick(vi->cvq)))

		return status == VIRTIO_NET_OK;
@@ -934,8 +930,7 @@ static int virtnet_set_mac_address(struct net_device *dev, void *p) 
	if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_MAC_ADDR)) {

		sg_init_one(&sg, addr->sa_data, dev->addr_len);

		if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC,

					  VIRTIO_NET_CTRL_MAC_ADDR_SET,

					  &sg, NULL)) {

					  VIRTIO_NET_CTRL_MAC_ADDR_SET, &sg)) {

			dev_warn(&vdev->dev,

				 "Failed to set mac address by vq command.\n");

			return -EINVAL;
@@ -1008,7 +1003,7 @@ static void virtnet_ack_link_announce(struct virtnet_info *vi) 
{

	rtnl_lock();

	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_ANNOUNCE,

				  VIRTIO_NET_CTRL_ANNOUNCE_ACK, NULL, NULL))

				  VIRTIO_NET_CTRL_ANNOUNCE_ACK, NULL))

		dev_warn(&vi->dev->dev, "Failed to ack link announce.\n");

	rtnl_unlock();

}
@@ -1026,7 +1021,7 @@ static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) 
	sg_init_one(&sg, &s, sizeof(s));



	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MQ,

				  VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET, &sg, NULL)) {

				  VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET, &sg)) {

		dev_warn(&dev->dev, "Fail to set num of queue pairs to %d\n",

			 queue_pairs);

		return -EINVAL;
@@ -1076,16 +1071,14 @@ static void virtnet_set_rx_mode(struct net_device *dev) 
	sg_init_one(sg, &promisc, sizeof(promisc));



	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX,

				  VIRTIO_NET_CTRL_RX_PROMISC,

				  sg, NULL))

				  VIRTIO_NET_CTRL_RX_PROMISC, sg))

		dev_warn(&dev->dev, "Failed to %sable promisc mode.\n",

			 promisc ? "en" : "dis");



	sg_init_one(sg, &allmulti, sizeof(allmulti));



	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_RX,

				  VIRTIO_NET_CTRL_RX_ALLMULTI,

				  sg, NULL))

				  VIRTIO_NET_CTRL_RX_ALLMULTI, sg))

		dev_warn(&dev->dev, "Failed to %sable allmulti mode.\n",

			 allmulti ? "en" : "dis");
@@ -1121,8 +1114,7 @@ static void virtnet_set_rx_mode(struct net_device *dev) 
		   sizeof(mac_data->entries) + (mc_count * ETH_ALEN));



	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC,

				  VIRTIO_NET_CTRL_MAC_TABLE_SET,

				  sg, NULL))

				  VIRTIO_NET_CTRL_MAC_TABLE_SET, sg))

		dev_warn(&dev->dev, "Failed to set MAC filter table.\n");



	kfree(buf);
@@ -1137,7 +1129,7 @@ static int virtnet_vlan_rx_add_vid(struct net_device *dev, 
	sg_init_one(&sg, &vid, sizeof(vid));



	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN,

				  VIRTIO_NET_CTRL_VLAN_ADD, &sg, NULL))

				  VIRTIO_NET_CTRL_VLAN_ADD, &sg))

		dev_warn(&dev->dev, "Failed to add VLAN ID %d.\n", vid);

	return 0;

}
@@ -1151,7 +1143,7 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev, 
	sg_init_one(&sg, &vid, sizeof(vid));



	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_VLAN,

				  VIRTIO_NET_CTRL_VLAN_DEL, &sg, NULL))

				  VIRTIO_NET_CTRL_VLAN_DEL, &sg))

		dev_warn(&dev->dev, "Failed to kill VLAN ID %d.\n", vid);

	return 0;

}