compat: Add skb_checksum_simple_complete()

[ovs.git] / datapath / linux / compat / include / linux / skbuff.h

diff --git a/datapath/linux/compat/include/linux/skbuff.h b/datapath/linux/compat/include/linux/skbuff.h
index 63ffcaa350f334379c6123250b3885b3094db8cd..c50cac24a74bb2d99a7f9c4a176b0a1bf68b07ed 100644 (file)
--- a/datapath/linux/compat/include/linux/skbuff.h
+++ b/datapath/linux/compat/include/linux/skbuff.h
@@ -32,7 +32,11 @@ static inline __wsum null_compute_pseudo(struct sk_buff *skb, int proto)
 #ifndef HAVE_SKB_CHECKSUM_CONVERT
 static inline bool __skb_checksum_convert_check(struct sk_buff *skb)
 {
+#ifdef HAVE_SKBUFF_CSUM_VALID
        return (skb->ip_summed == CHECKSUM_NONE && skb->csum_valid);
+#else
+       return skb->ip_summed == CHECKSUM_NONE;
+#endif
 }
 
 static inline void __skb_checksum_convert(struct sk_buff *skb,
@@ -50,6 +54,21 @@ do {                                                                 \
 } while (0)
 
 #endif
+
+#ifndef SKB_CHECKSUM_SIMPLE_VALIDATE
+
+#define __skb_checksum_validate(skb, proto, complete,                  \
+                               zero_okay, check, compute_pseudo)       \
+({                                                                     \
+       __sum16 __ret = 0;                                              \
+       __ret;                                                          \
+})
+
+
+#define skb_checksum_simple_validate(skb)                              \
+       __skb_checksum_validate(skb, 0, true, false, 0, null_compute_pseudo)
+#endif
+
 #ifndef HAVE_SKB_COPY_FROM_LINEAR_DATA_OFFSET
 static inline void skb_copy_from_linear_data_offset(const struct sk_buff *skb,
                                                    const int offset, void *to,