[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] [PATCH V5 1/7] xen-netfront: remove unused variable `extra'



This variable is supposed to hold reference to the last extra_info in the
loop. However there is only type of extra info here and the loop to process
extra info is missing, so this variable is never used and causes confusion.

Remove it at the moment. We can add it back when necessary.

Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
Reviewed-by: David Vrabel <david.vrabel@xxxxxxxxxx>
---
 drivers/net/xen-netfront.c |    8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 7ffa43b..5527663 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -537,7 +537,6 @@ static int xennet_start_xmit(struct sk_buff *skb, struct 
net_device *dev)
        struct netfront_info *np = netdev_priv(dev);
        struct netfront_stats *stats = this_cpu_ptr(np->stats);
        struct xen_netif_tx_request *tx;
-       struct xen_netif_extra_info *extra;
        char *data = skb->data;
        RING_IDX i;
        grant_ref_t ref;
@@ -581,7 +580,6 @@ static int xennet_start_xmit(struct sk_buff *skb, struct 
net_device *dev)
        tx->gref = np->grant_tx_ref[id] = ref;
        tx->offset = offset;
        tx->size = len;
-       extra = NULL;
 
        tx->flags = 0;
        if (skb->ip_summed == CHECKSUM_PARTIAL)
@@ -597,10 +595,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct 
net_device *dev)
                gso = (struct xen_netif_extra_info *)
                        RING_GET_REQUEST(&np->tx, ++i);
 
-               if (extra)
-                       extra->flags |= XEN_NETIF_EXTRA_FLAG_MORE;
-               else
-                       tx->flags |= XEN_NETTXF_extra_info;
+               tx->flags |= XEN_NETTXF_extra_info;
 
                gso->u.gso.size = skb_shinfo(skb)->gso_size;
                gso->u.gso.type = XEN_NETIF_GSO_TYPE_TCPV4;
@@ -609,7 +604,6 @@ static int xennet_start_xmit(struct sk_buff *skb, struct 
net_device *dev)
 
                gso->type = XEN_NETIF_EXTRA_TYPE_GSO;
                gso->flags = 0;
-               extra = gso;
        }
 
        np->tx.req_prod_pvt = i + 1;
-- 
1.7.10.4


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.