net: Add a skb_gro_flush_final helper.
Add a skb_gro_flush_final helper to prepare for consuming
skbs in call_gro_receive. We will extend this helper to not
touch the skb if the skb is consumed by a gro callback with
a followup patch. We need this to handle the upcomming IPsec
ESP callbacks as they reinject the skb to the napi_gro_receive
asynchronous. The handler is used in all gro_receive functions
that can call the ESP gro handlers.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 58afbd1..f9da3ac 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2661,6 +2661,11 @@ static inline void skb_gro_remcsum_cleanup(struct sk_buff *skb,
remcsum_unadjust((__sum16 *)ptr, grc->delta);
}
+static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff **pp, int flush)
+{
+ NAPI_GRO_CB(skb)->flush |= flush;
+}
+
static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type,
const void *daddr, const void *saddr,