filter: add XOR operation

Add XOR instruction fo BPF machine. Needed for computing packet hashes.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 92dd993..7209099 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -126,7 +126,8 @@
 #define SKF_AD_HATYPE	28
 #define SKF_AD_RXHASH	32
 #define SKF_AD_CPU	36
-#define SKF_AD_MAX	40
+#define SKF_AD_ALU_XOR_X	40
+#define SKF_AD_MAX	44
 #define SKF_NET_OFF   (-0x100000)
 #define SKF_LL_OFF    (-0x200000)
 
@@ -231,6 +232,7 @@
 	BPF_S_ANC_HATYPE,
 	BPF_S_ANC_RXHASH,
 	BPF_S_ANC_CPU,
+	BPF_S_ANC_ALU_XOR_X,
 };
 
 #endif /* __KERNEL__ */