net-tc: convert tc_verd to integer bitfields
Extract the remaining two fields from tc_verd and remove the __u16
completely. TC_AT and TC_FROM are converted to equivalent two-bit
integer fields tc_at and tc_from. Where possible, use existing
helper skb_at_tc_ingress when reading tc_at. Introduce helper
skb_reset_tc to clear fields.
Not documenting tc_from and tc_at, because they will be replaced
with single bit fields in follow-on patches.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 570f60e..f738d09 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -599,7 +599,6 @@ static inline bool skb_mstamp_after(const struct skb_mstamp *t1,
* @nf_bridge: Saved data about a bridged frame - see br_netfilter.c
* @skb_iif: ifindex of device we arrived on
* @tc_index: Traffic control index
- * @tc_verd: traffic control verdict
* @hash: the packet hash
* @queue_mapping: Queue mapping for multiqueue devices
* @xmit_more: More SKBs are pending for this queue
@@ -752,13 +751,12 @@ struct sk_buff {
#endif
#ifdef CONFIG_NET_CLS_ACT
__u8 tc_skip_classify:1;
+ __u8 tc_at:2;
+ __u8 tc_from:2;
#endif
#ifdef CONFIG_NET_SCHED
__u16 tc_index; /* traffic control index */
-#ifdef CONFIG_NET_CLS_ACT
- __u16 tc_verd; /* traffic control verdict */
-#endif
#endif
union {