[NET]: Use csum_start offset instead of skb_transport_header

[net-next-2.6.git] / include / linux / skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 9b2957d203c91dfb9ecaad4a3ffa3abd767c16b4..910560e855619917a5f7103bfbae9642f7ee139b 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -205,7 +205,9 @@ typedef unsigned char *sk_buff_data_t;
  *     @len: Length of actual data
  *     @data_len: Data length
  *     @mac_len: Length of link layer header
- *     @csum: Checksum
+ *     @csum: Checksum (must include start/offset pair)
+ *     @csum_start: Offset from skb->head where checksumming should start
+ *     @csum_offset: Offset from csum_start where checksum should be stored
  *     @local_df: allow local fragmentation
  *     @cloned: Head may be cloned (check refcnt to be sure)
  *     @nohdr: Payload reference only, must not modify header
@@ -261,7 +263,10 @@ struct sk_buff {
                                mac_len;
        union {
                __wsum          csum;
-               __u32           csum_offset;
+               struct {
+                       __u16   csum_start;
+                       __u16   csum_offset;
+               };
        };
        __u32                   priority;
        __u8                    local_df:1,