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authorEli Cohen <eli@mellanox.co.il>2008-06-27 20:09:00 -0700
committerDavid S. Miller <davem@davemloft.net>2008-06-27 20:09:00 -0700
commit251a4b320f2352598f84e4452ab538aa8064af52 (patch)
tree8993e1aafe4917c85a12f3ac0e8bb10b37a787e1
parent9a375803feaadb6c34e0807bd9325885dcca5c00 (diff)
downloadconfigs-251a4b320f2352598f84e4452ab538aa8064af52.tar.gz
net/inet_lro: remove setting skb->ip_summed when not LRO-able
When an SKB cannot be chained to a session, the current code attempts to "restore" its ip_summed field from lro_mgr->ip_summed. However, lro_mgr->ip_summed does not hold the original value; in fact, we'd better not touch skb->ip_summed since it is not modified by the code in the path leading to a failure to chain it. Also use a cleaer comment to the describe the ip_summed field of struct net_lro_mgr. Issue raised by Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/linux/inet_lro.h6
-rw-r--r--net/ipv4/inet_lro.c3
2 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/inet_lro.h b/include/linux/inet_lro.h
index 80335b7d77c..c4335faebb6 100644
--- a/include/linux/inet_lro.h
+++ b/include/linux/inet_lro.h
@@ -84,7 +84,11 @@ struct net_lro_mgr {
from received packets and eth protocol
is still ETH_P_8021Q */
- u32 ip_summed; /* Set in non generated SKBs in page mode */
+ /*
+ * Set for generated SKBs that are not added to
+ * the frag list in fragmented mode
+ */
+ u32 ip_summed;
u32 ip_summed_aggr; /* Set in aggregated SKBs: CHECKSUM_UNNECESSARY
* or CHECKSUM_NONE */
diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c
index 4a4d49fca1f..cfd034a2b96 100644
--- a/net/ipv4/inet_lro.c
+++ b/net/ipv4/inet_lro.c
@@ -383,8 +383,7 @@ static int __lro_proc_skb(struct net_lro_mgr *lro_mgr, struct sk_buff *skb,
out2: /* send aggregated SKBs to stack */
lro_flush(lro_mgr, lro_desc);
-out: /* Original SKB has to be posted to stack */
- skb->ip_summed = lro_mgr->ip_summed;
+out:
return 1;
}