net: dsa: remove tag ops from the switch tree

Now that the dsa_ptr is a dsa_port instance, there is no need to keep
the tag operations in the dsa_switch_tree structure. Remove it.
Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/dsa.h

@@ -130,11 +130,6 @@ struct dsa_switch_tree {
 	 */
 	struct dsa_platform_data	*pd;
 
-	/* Copy of tag_ops->rcv for faster access in hot path */
-	struct sk_buff *	(*rcv)(struct sk_buff *skb,
-				       struct net_device *dev,
-				       struct packet_type *pt);
-
 	/*
 	 * The switch port to which the CPU is attached.
 	 */
@@ -144,12 +139,6 @@ struct dsa_switch_tree {
 	 * Data for the individual switch chips.
 	 */
 	struct dsa_switch	*ds[DSA_MAX_SWITCHES];
-
-	/*
-	 * Tagging protocol operations for adding and removing an
-	 * encapsulation tag.
-	 */
-	const struct dsa_device_ops *tag_ops;
 };
 
 /* TC matchall action types, only mirroring for now */

net/dsa/dsa2.c

@@ -523,11 +523,9 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index,
 	}
 
 	dst->cpu_dp->tag_ops = tag_ops;
-	dst->tag_ops = tag_ops;
 
 	/* Make a few copies for faster access in master receive hot path */
 	dst->cpu_dp->rcv = dst->cpu_dp->tag_ops->rcv;
-	dst->rcv = dst->tag_ops->rcv;
 	dst->cpu_dp->dst = dst;
 
 	return 0;

net/dsa/legacy.c

@@ -153,11 +153,9 @@ static int dsa_switch_setup_one(struct dsa_switch *ds,
 			return PTR_ERR(tag_ops);
 
 		dst->cpu_dp->tag_ops = tag_ops;
-		dst->tag_ops = tag_ops;
 
 		/* Few copies for faster access in master receive hot path */
 		dst->cpu_dp->rcv = dst->cpu_dp->tag_ops->rcv;
-		dst->rcv = dst->tag_ops->rcv;
 		dst->cpu_dp->dst = dst;
 	}