net: skb_checksum: allow custom update/combine for walking skb

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

diff --git a/include/net/checksum.h b/include/net/checksum.h
index 8f59ca50477c6424c6a21d8a5f5ca60af62c7d32..15f33fde826e7773e57d3cf0c957930c9fada7fe 100644 (file)
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -78,6 +78,12 @@ csum_block_add(__wsum csum, __wsum csum2, int offset)
        return csum_add(csum, (__force __wsum)sum);
 }
 
+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)
 {