xen-netback: fix sparse warning

From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>

this patch fixes following sparse warning:

interface.c:83:5: warning: symbol 'xenvif_poll' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
---
 Found this issue on linux-next (gcc  version 4.9.2,
 sparse version  0.4.5-rc1)and applies on top linux-next.

 drivers/net/xen-netback/interface.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

On Thu, Feb 05, 2015 at 01:38:07PM +0000, Lad Prabhakar wrote:
> From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
> 
> this patch fixes following sparse warning:
> 
> interface.c:83:5: warning: symbol 'xenvif_poll' was not declared. Should it be static?
> 
> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>

Acked-by: Wei Liu <wei.liu2@citrix.com>

Thanks!

> ---
>  Found this issue on linux-next (gcc  version 4.9.2,
>  sparse version  0.4.5-rc1)and applies on top linux-next.
> 
>  drivers/net/xen-netback/interface.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
> index 12f9e27..f38227a 100644
> --- a/drivers/net/xen-netback/interface.c
> +++ b/drivers/net/xen-netback/interface.c
> @@ -80,7 +80,7 @@ static irqreturn_t xenvif_tx_interrupt(int irq, void *dev_id)
>  	return IRQ_HANDLED;
>  }
>  
> -int xenvif_poll(struct napi_struct *napi, int budget)
> +static int xenvif_poll(struct napi_struct *napi, int budget)
>  {
>  	struct xenvif_queue *queue =
>  		container_of(napi, struct xenvif_queue, napi);
> -- 
> 1.9.1
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From: Lad Prabhakar <prabhakar.csengg@gmail.com>
Date: Thu,  5 Feb 2015 13:38:07 +0000

> From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
> 
> this patch fixes following sparse warning:
> 
> interface.c:83:5: warning: symbol 'xenvif_poll' was not declared. Should it be static?
> 
> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>

Applied.
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