netdev - Re: [PATCH 2/3] vhost: adjust vhost_dev

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Date:	Mon, 18 Nov 2013 12:16:28 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Zhi Yong Wu <zwu.kernel@...il.com>
Cc:	netdev@...r.kernel.org, rusty@...tcorp.com.au,
	Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
Subject: Re: [PATCH 2/3] vhost: adjust vhost_dev_init() to be void

On Mon, Nov 18, 2013 at 11:19:22AM +0800, Zhi Yong Wu wrote:
> From: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>
> 
> Signed-off-by: Zhi Yong Wu <wuzhy@...ux.vnet.ibm.com>

Acked-by: Michael S. Tsirkin <mst@...hat.com>

> ---
>  drivers/vhost/net.c   |    4 ++--
>  drivers/vhost/scsi.c  |    2 +-
>  drivers/vhost/test.c  |    3 +--
>  drivers/vhost/vhost.c |    4 +---
>  drivers/vhost/vhost.h |    2 +-
>  5 files changed, 6 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index 0554785..9a68409 100644
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -683,7 +683,7 @@ static int vhost_net_open(struct inode *inode, struct file *f)
>  	struct vhost_net *n = kmalloc(sizeof *n, GFP_KERNEL);
>  	struct vhost_dev *dev;
>  	struct vhost_virtqueue **vqs;
> -	int r, i;
> +	int i;
>  
>  	if (!n)
>  		return -ENOMEM;
> @@ -706,7 +706,7 @@ static int vhost_net_open(struct inode *inode, struct file *f)
>  		n->vqs[i].vhost_hlen = 0;
>  		n->vqs[i].sock_hlen = 0;
>  	}
> -	r = vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX);
> +	vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX);
>  
>  	vhost_poll_init(n->poll + VHOST_NET_VQ_TX, handle_tx_net, POLLOUT, dev);
>  	vhost_poll_init(n->poll + VHOST_NET_VQ_RX, handle_rx_net, POLLIN, dev);
> diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
> index 9d5e18d..e02b7df 100644
> --- a/drivers/vhost/scsi.c
> +++ b/drivers/vhost/scsi.c
> @@ -1417,7 +1417,7 @@ static int vhost_scsi_open(struct inode *inode, struct file *f)
>  		vqs[i] = &vs->vqs[i].vq;
>  		vs->vqs[i].vq.handle_kick = vhost_scsi_handle_kick;
>  	}
> -	r = vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ);
> +	vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ);
>  
>  	tcm_vhost_init_inflight(vs, NULL);
>  
> diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c
> index 99cb960..c2a54fb 100644
> --- a/drivers/vhost/test.c
> +++ b/drivers/vhost/test.c
> @@ -104,7 +104,6 @@ static int vhost_test_open(struct inode *inode, struct file *f)
>  	struct vhost_test *n = kmalloc(sizeof *n, GFP_KERNEL);
>  	struct vhost_dev *dev;
>  	struct vhost_virtqueue **vqs;
> -	int r;
>  
>  	if (!n)
>  		return -ENOMEM;
> @@ -117,7 +116,7 @@ static int vhost_test_open(struct inode *inode, struct file *f)
>  	dev = &n->dev;
>  	vqs[VHOST_TEST_VQ] = &n->vqs[VHOST_TEST_VQ];
>  	n->vqs[VHOST_TEST_VQ].handle_kick = handle_vq_kick;
> -	r = vhost_dev_init(dev, vqs, VHOST_TEST_VQ_MAX);
> +	vhost_dev_init(dev, vqs, VHOST_TEST_VQ_MAX);
>  
>  	f->private_data = n;
>  
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 69068e0..78987e4 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -290,7 +290,7 @@ static void vhost_dev_free_iovecs(struct vhost_dev *dev)
>  		vhost_vq_free_iovecs(dev->vqs[i]);
>  }
>  
> -long vhost_dev_init(struct vhost_dev *dev,
> +void vhost_dev_init(struct vhost_dev *dev,
>  		    struct vhost_virtqueue **vqs, int nvqs)
>  {
>  	struct vhost_virtqueue *vq;
> @@ -319,8 +319,6 @@ long vhost_dev_init(struct vhost_dev *dev,
>  			vhost_poll_init(&vq->poll, vq->handle_kick,
>  					POLLIN, dev);
>  	}
> -
> -	return 0;
>  }
>  EXPORT_SYMBOL_GPL(vhost_dev_init);
>  
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 4465ed5..35eeb2a 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -127,7 +127,7 @@ struct vhost_dev {
>  	struct task_struct *worker;
>  };
>  
> -long vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs, int nvqs);
> +void vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs, int nvqs);
>  long vhost_dev_set_owner(struct vhost_dev *dev);
>  bool vhost_dev_has_owner(struct vhost_dev *dev);
>  long vhost_dev_check_owner(struct vhost_dev *);
> -- 
> 1.7.6.5
--
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