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[RFC,v6,13/19] To skip GRO if buffer is external currently.

Message ID 1274434235-5929-14-git-send-email-xiaohui.xin@intel.com
State RFC, archived
Delegated to: David Miller
Headers show

Commit Message

Xin, Xiaohui May 21, 2010, 9:30 a.m. UTC 
From: Xin Xiaohui <xiaohui.xin@intel.com>

Signed-off-by: Xin Xiaohui <xiaohui.xin@intel.com>
Signed-off-by: Zhao Yu <yzhao81new@gmail.com>
Reviewed-by: Jeff Dike <jdike@linux.intel.com>
---
 net/core/dev.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
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Patch

diff --git a/net/core/dev.c b/net/core/dev.c
index dc2f225..6c6b2fe 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2787,6 +2787,10 @@  enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	if (skb_is_gso(skb) || skb_has_frags(skb))
 		goto normal;
 
+	/* currently GRO is not supported by mediate passthru */
+	if (dev_is_mpassthru(skb->dev))
+		goto normal;
+
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, head, list) {
 		if (ptype->type != type || ptype->dev || !ptype->gro_receive)