Patchwork [V2,1/6] vhost_net: make vhost_zerocopy_signal_used() returns void

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Submitter Jason Wang
Date Aug. 30, 2013, 4:29 a.m.
Message ID <1377836962-49780-2-git-send-email-jasowang@redhat.com>
Download mbox | patch
Permalink /patch/271103/
State Superseded
Delegated to: David Miller
Headers show

Comments

Jason Wang - Aug. 30, 2013, 4:29 a.m.
None of its caller use its return value, so let it return void.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 drivers/vhost/net.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
Michael S. Tsirkin - Sept. 2, 2013, 5:51 a.m.
tweak subj s/returns/return/

On Fri, Aug 30, 2013 at 12:29:17PM +0800, Jason Wang wrote:
> None of its caller use its return value, so let it return void.
> 
> Signed-off-by: Jason Wang <jasowang@redhat.com>
> ---
>  drivers/vhost/net.c |    5 ++---
>  1 files changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index 969a859..280ee66 100644
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -276,8 +276,8 @@ static void copy_iovec_hdr(const struct iovec *from, struct iovec *to,
>   * of used idx. Once lower device DMA done contiguously, we will signal KVM
>   * guest used idx.
>   */
> -static int vhost_zerocopy_signal_used(struct vhost_net *net,
> -				      struct vhost_virtqueue *vq)
> +static void vhost_zerocopy_signal_used(struct vhost_net *net,
> +				       struct vhost_virtqueue *vq)
>  {
>  	struct vhost_net_virtqueue *nvq =
>  		container_of(vq, struct vhost_net_virtqueue, vq);
> @@ -297,7 +297,6 @@ static int vhost_zerocopy_signal_used(struct vhost_net *net,
>  	}
>  	if (j)
>  		nvq->done_idx = i;
> -	return j;
>  }
>  
>  static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)
> -- 
> 1.7.1
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Jason Wang - Sept. 2, 2013, 6:29 a.m.
On 09/02/2013 01:51 PM, Michael S. Tsirkin wrote:
> tweak subj s/returns/return/
>
> On Fri, Aug 30, 2013 at 12:29:17PM +0800, Jason Wang wrote:
>> > None of its caller use its return value, so let it return void.
>> > 
>> > Signed-off-by: Jason Wang <jasowang@redhat.com>
>> > ---

Will correct it in v3.
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Patch

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 969a859..280ee66 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -276,8 +276,8 @@  static void copy_iovec_hdr(const struct iovec *from, struct iovec *to,
  * of used idx. Once lower device DMA done contiguously, we will signal KVM
  * guest used idx.
  */
-static int vhost_zerocopy_signal_used(struct vhost_net *net,
-				      struct vhost_virtqueue *vq)
+static void vhost_zerocopy_signal_used(struct vhost_net *net,
+				       struct vhost_virtqueue *vq)
 {
 	struct vhost_net_virtqueue *nvq =
 		container_of(vq, struct vhost_net_virtqueue, vq);
@@ -297,7 +297,6 @@  static int vhost_zerocopy_signal_used(struct vhost_net *net,
 	}
 	if (j)
 		nvq->done_idx = i;
-	return j;
 }
 
 static void vhost_zerocopy_callback(struct ubuf_info *ubuf, bool success)