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authorLinus Torvalds <torvalds@linux-foundation.org>2010-07-27 09:21:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-07-27 09:21:00 -0700
commita376bca61096c7a79393e8125b7ad4757ccff19c (patch)
tree87bb6aeff773e334a620b3a9aed6b2771cfb9bca /net/core/skbuff.c
parent1a041a23da7c77b53c71fe11b4f940388bee37b1 (diff)
parent5447080cfa3c77154498dfbf225367ac85b4c2b5 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: s2io: fixing DBG_PRINT() macro ath9k: fix dma direction for map/unmap in ath_rx_tasklet net: dev_forward_skb should call nf_reset net sched: fix race in mirred device removal tun: avoid BUG, dump packet on GSO errors bonding: set device in RLB ARP packet handler wimax/i2400m: Add PID & VID for Intel WiMAX 6250 ipv6: Don't add routes to ipv6 disabled interfaces. net: Fix skb_copy_expand() handling of ->csum_start net: Fix corruption of skb csum field in pskb_expand_head() of net/core/skbuff.c macvtap: Limit packet queue length ixgbe/igb: catch invalid VF settings bnx2x: Advance a module version bnx2x: Protect statistics ramrod and sequence number bnx2x: Protect a SM state change wireless: use netif_rx_ni in ieee80211_send_layer2_update
Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 34432b4e96b..ce88293a34e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -843,7 +843,9 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
skb->network_header += off;
if (skb_mac_header_was_set(skb))
skb->mac_header += off;
- skb->csum_start += nhead;
+ /* Only adjust this if it actually is csum_start rather than csum */
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ skb->csum_start += nhead;
skb->cloned = 0;
skb->hdr_len = 0;
skb->nohdr = 0;
@@ -930,7 +932,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
copy_skb_header(n, skb);
off = newheadroom - oldheadroom;
- n->csum_start += off;
+ if (n->ip_summed == CHECKSUM_PARTIAL)
+ n->csum_start += off;
#ifdef NET_SKBUFF_DATA_USES_OFFSET
n->transport_header += off;
n->network_header += off;