net: Add DMA mapping tokens to skb_shared_info.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 909923717830..4b2be23903c4 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -146,8 +146,14 @@ struct skb_shared_info {
         unsigned short  gso_segs;
         unsigned short  gso_type;
         __be32          ip6_frag_id;
+#ifdef CONFIG_HAS_DMA
+        unsigned int    num_dma_maps;
+#endif
         struct sk_buff  *frag_list;
         skb_frag_t      frags[MAX_SKB_FRAGS];
+#ifdef CONFIG_HAS_DMA
+        dma_addr_t      dma_maps[MAX_SKB_FRAGS + 1];
+#endif
 };
 
 /* We divide dataref into two halves.  The higher 16 bits hold references