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net/inet_lro: remove setting skb->ip_summed when not LRO-able

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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 <[email protected]>

Signed-off-by: Eli Cohen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eli Cohen 2008-06-27 20:09:00 -07:00 • committed by David S. Miller
commit 251a4b320f
2 changed files with 6 additions and 3 deletions
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6
include/linux/inet_lro.h
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@ -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 */