tcp: take care of misalignments

[mirror_ubuntu-artful-kernel.git] / include / linux / skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cec0657d0d32e35dd96694a1e9050109e5b8febd..12e6fed73f8e43c263df2f1fc3d810c55d36ba36 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -568,8 +568,9 @@ extern struct sk_buff *skb_clone(struct sk_buff *skb,
                                 gfp_t priority);
 extern struct sk_buff *skb_copy(const struct sk_buff *skb,
                                gfp_t priority);
-extern struct sk_buff *pskb_copy(struct sk_buff *skb,
-                                gfp_t gfp_mask);
+extern struct sk_buff *__pskb_copy(struct sk_buff *skb,
+                                int headroom, gfp_t gfp_mask);
+
 extern int            pskb_expand_head(struct sk_buff *skb,
                                        int nhead, int ntail,
                                        gfp_t gfp_mask);
@@ -1799,6 +1800,12 @@ static inline dma_addr_t skb_frag_dma_map(struct device *dev,
                            frag->page_offset + offset, size, dir);
 }
 
+static inline struct sk_buff *pskb_copy(struct sk_buff *skb,
+                                       gfp_t gfp_mask)
+{
+       return __pskb_copy(skb, skb_headroom(skb), gfp_mask);
+}
+
 /**
  *     skb_clone_writable - is the header of a clone writable
  *     @skb: buffer to check