diff options
Diffstat (limited to 'net/core/skbuff.c')
| -rw-r--r-- | net/core/skbuff.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 34432b4e96bb..3a2513f0d0c3 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -817,7 +817,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail, memcpy(data + nhead, skb->head, skb->tail - skb->head); #endif memcpy(data + size, skb_end_pointer(skb), - sizeof(struct skb_shared_info)); + offsetof(struct skb_shared_info, frags[skb_shinfo(skb)->nr_frags])); for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) get_page(skb_shinfo(skb)->frags[i].page); @@ -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; @@ -2483,7 +2486,6 @@ unsigned char *skb_pull_rcsum(struct sk_buff *skb, unsigned int len) skb_postpull_rcsum(skb, skb->data, len); return skb->data += len; } - EXPORT_SYMBOL_GPL(skb_pull_rcsum); /** |