UPSTREAM: PCI: rockchip: Provide captured slot power limit and scale

[firefly-linux-kernel-4.4.55.git] / include / linux / skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index b3bb99025adda40925a141b305de26201353536f..d443d9ab0236b8a7a8a53ed08b365932e1ec87cd 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2773,6 +2773,25 @@ static inline void skb_postpush_rcsum(struct sk_buff *skb,
                skb->csum = csum_partial(start, len, skb->csum);
 }
 
+/**
+ *     skb_push_rcsum - push skb and update receive checksum
+ *     @skb: buffer to update
+ *     @len: length of data pulled
+ *
+ *     This function performs an skb_push on the packet and updates
+ *     the CHECKSUM_COMPLETE checksum.  It should be used on
+ *     receive path processing instead of skb_push unless you know
+ *     that the checksum difference is zero (e.g., a valid IP header)
+ *     or you are setting ip_summed to CHECKSUM_NONE.
+ */
+static inline unsigned char *skb_push_rcsum(struct sk_buff *skb,
+                                           unsigned int len)
+{
+       skb_push(skb, len);
+       skb_postpush_rcsum(skb, skb->data, len);
+       return skb->data;
+}
+
 /**
  *     pskb_trim_rcsum - trim received skb and update checksum
  *     @skb: buffer to trim