[NET] gso: Add skb_is_gso

This patch adds the wrapper function skb_is_gso which can be used instead
of directly testing skb_shinfo(skb)->gso_size.  This makes things a little
nicer and allows us to change the primary key for indicating whether an skb
is GSO (if we ever want to do that).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 6 insertions, 1 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 85f99f60deea..0359a6430018 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1001,7 +1001,7 @@ static inline int net_gso_ok(int features, int gso_type)
 
 static inline int skb_gso_ok(struct sk_buff *skb, int features)
 {
-        return net_gso_ok(features, skb_shinfo(skb)->gso_size ?
+        return net_gso_ok(features, skb_is_gso(skb) ?
                                     skb_shinfo(skb)->gso_type : 0);
 }
 
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 3597b4f14389..0bf31b83578c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1455,5 +1455,10 @@ static inline void skb_init_secmark(struct sk_buff *skb)
 { }
 #endif
 
+static inline int skb_is_gso(const struct sk_buff *skb)
+{
+        return skb_shinfo(skb)->gso_size;
+}
+
 #endif  /* __KERNEL__ */
 #endif  /* _LINUX_SKBUFF_H */