netdev - Re: [PATCH] xen-netfront: correct MAX_TX

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Message-ID: <20120126181900.GB25572@phenom.dumpdata.com>
Date:	Thu, 26 Jan 2012 13:19:00 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Wei Liu <wei.liu2@...rix.com>
Cc:	netdev@...r.kernel.org, jeremy@...p.org,
	xen-devel@...ts.xensource.com, ian.campbell@...rix.com
Subject: Re: [PATCH] xen-netfront: correct MAX_TX_TARGET calculation.

On Thu, Jan 26, 2012 at 05:23:23PM +0000, Wei Liu wrote:

Can you give some more details please? What is the impact of
not having this? Should it be backported to stable?

> Signed-off-by: Wei Liu <wei.liu2@...rix.com>
> ---
>  drivers/net/xen-netfront.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
> index 38f9c95..01f589d 100644
> --- a/drivers/net/xen-netfront.c
> +++ b/drivers/net/xen-netfront.c
> @@ -68,7 +68,7 @@ struct netfront_cb {
>  
>  #define NET_TX_RING_SIZE __CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE)
>  #define NET_RX_RING_SIZE __CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE)
> -#define TX_MAX_TARGET min_t(int, NET_RX_RING_SIZE, 256)
> +#define TX_MAX_TARGET min_t(int, NET_TX_RING_SIZE, 256)
>  
>  struct netfront_stats {
>  	u64			rx_packets;
> -- 
> 1.7.8.3
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