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-rw-r--r--include/linux/skbuff.h13
-rw-r--r--include/net/checksum.h6
2 files changed, 16 insertions, 3 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2c154976394..44727b5d498 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2360,8 +2360,6 @@ int skb_copy_datagram_const_iovec(const struct sk_buff *from, int offset,
void skb_free_datagram(struct sock *sk, struct sk_buff *skb);
void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb);
int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags);
-__wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
- __wsum csum);
int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len);
int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len);
__wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset, u8 *to,
@@ -2373,9 +2371,18 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to);
void skb_split(struct sk_buff *skb, struct sk_buff *skb1, const u32 len);
int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen);
void skb_scrub_packet(struct sk_buff *skb, bool xnet);
-
struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
+struct skb_checksum_ops {
+ __wsum (*update)(const void *mem, int len, __wsum wsum);
+ __wsum (*combine)(__wsum csum, __wsum csum2, int offset, int len);
+};
+
+__wsum __skb_checksum(const struct sk_buff *skb, int offset, int len,
+ __wsum csum, const struct skb_checksum_ops *ops);
+__wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
+ __wsum csum);
+
static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
int len, void *buffer)
{
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 8f59ca50477..15f33fde826 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -79,6 +79,12 @@ csum_block_add(__wsum csum, __wsum csum2, int offset)
}
static inline __wsum
+csum_block_add_ext(__wsum csum, __wsum csum2, int offset, int len)
+{
+ return csum_block_add(csum, csum2, offset);
+}
+
+static inline __wsum
csum_block_sub(__wsum csum, __wsum csum2, int offset)
{
u32 sum = (__force u32)csum2;