Xen devel - Jan 2012 - [PATCH] netback: fix multi page ring size calculation.

---
 drivers/net/xen-netback/common.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index 477e5ab..f3d95b3 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -60,9 +60,9 @@ struct xenvif_rx_meta {
 #define MAX_BUFFER_OFFSET PAGE_SIZE
 
 #define NETBK_TX_RING_SIZE(_nr_pages)					\
-	(__CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE) * (_nr_pages))
+	(__CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE * (_nr_pages)))
 #define NETBK_RX_RING_SIZE(_nr_pages)					\
-	(__CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE) * (_nr_pages))
+	(__CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE * (_nr_pages)))
 
 #define NETBK_MAX_RING_PAGE_ORDER 2
 #define NETBK_MAX_RING_PAGES      (1U << NETBK_MAX_RING_PAGE_ORDER)
-- 
1.7.8.3

Sorry for the noise, I accidently sent the wrong patch.

Wei.

On Thu, 2012-01-26 at 17:20 +0000, Wei Liu wrote:
> ---
>  drivers/net/xen-netback/common.h |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/xen-netback/common.h
b/drivers/net/xen-netback/common.h
> index 477e5ab..f3d95b3 100644
> --- a/drivers/net/xen-netback/common.h
> +++ b/drivers/net/xen-netback/common.h
> @@ -60,9 +60,9 @@ struct xenvif_rx_meta {
>  #define MAX_BUFFER_OFFSET PAGE_SIZE
>  
>  #define NETBK_TX_RING_SIZE(_nr_pages)					\
> -	(__CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE) * (_nr_pages))
> +	(__CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE * (_nr_pages)))
>  #define NETBK_RX_RING_SIZE(_nr_pages)					\
> -	(__CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE) * (_nr_pages))
> +	(__CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE * (_nr_pages)))
>  
>  #define NETBK_MAX_RING_PAGE_ORDER 2
>  #define NETBK_MAX_RING_PAGES      (1U << NETBK_MAX_RING_PAGE_ORDER)