The skb doesn't change within the function. Therefore it's only
necessary to check if we need GSO once at the beginning.
Signed-off-by: Julien Grall <julien.gr...@citrix.com>
Cc: Ian Campbell <ian.campb...@citrix.com>
Cc: Wei Liu <wei.l...@citrix.com>
Cc: netdev@vger.kernel.org
---
Changes in v2:
- Patch added
---
drivers/net/xen-netback/netback.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/net/xen-netback/netback.c
b/drivers/net/xen-netback/netback.c
index 880d0d6..3f77030 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -277,6 +277,13 @@ static void xenvif_gop_frag_copy(struct xenvif_queue
*queue, struct sk_buff *skb
unsigned long bytes;
int gso_type = XEN_NETIF_GSO_TYPE_NONE;
+ if (skb_is_gso(skb)) {
+ if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4)
+ gso_type = XEN_NETIF_GSO_TYPE_TCPV4;
+ else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
+ gso_type = XEN_NETIF_GSO_TYPE_TCPV6;
+ }
+
/* Data must not cross a page boundary. */
BUG_ON(size + offset > PAGE_SIZE<<compound_order(page));
@@ -336,13 +343,6 @@ static void xenvif_gop_frag_copy(struct xenvif_queue
*queue, struct sk_buff *skb
}
/* Leave a gap for the GSO descriptor. */
- if (skb_is_gso(skb)) {
- if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4)
- gso_type = XEN_NETIF_GSO_TYPE_TCPV4;
- else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
- gso_type = XEN_NETIF_GSO_TYPE_TCPV6;
- }
-
if (*head && ((1 << gso_type) & queue->vif->gso_mask))
queue->rx.req_cons++;
--
2.1.4
--
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