net/sched: Rename user cookie and act cookie

struct tc_action->act_cookie is a user defined cookie,
and the related struct flow_action_entry->act_cookie is
used as an handle similar to struct flow_cls_offload->cookie.

Rename tc_action->act_cookie to user_cookie, and
flow_action_entry->act_cookie to cookie so their names
would better fit their usage.
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -4176,7 +4176,7 @@ parse_tc_actions(struct mlx5e_tc_act_parse_state *parse_state,
 
 		parse_state->actions |= attr->action;
 		if (!tc_act->stats_action)
-			attr->tc_act_cookies[attr->tc_act_cookies_count++] = act->act_cookie;
+			attr->tc_act_cookies[attr->tc_act_cookies_count++] = act->cookie;
 
 		/* Split attr for multi table act if not the last act. */
 		if (jump_state.jump_target ||

drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c

@@ -103,7 +103,7 @@ static int mlxsw_sp_flower_parse_actions(struct mlxsw_sp *mlxsw_sp,
 			}
 			ingress = mlxsw_sp_flow_block_is_ingress_bound(block);
 			err = mlxsw_sp_acl_rulei_act_drop(rulei, ingress,
-							  act->cookie, extack);
+							  act->user_cookie, extack);
 			if (err) {
 				NL_SET_ERR_MSG_MOD(extack, "Cannot append drop action");
 				return err;

include/net/act_api.h

@@ -39,7 +39,7 @@ struct tc_action {
 	struct gnet_stats_basic_sync __percpu *cpu_bstats;
 	struct gnet_stats_basic_sync __percpu *cpu_bstats_hw;
 	struct gnet_stats_queue __percpu *cpu_qstats;
-	struct tc_cookie	__rcu *act_cookie;
+	struct tc_cookie	__rcu *user_cookie;
 	struct tcf_chain	__rcu *goto_chain;
 	u32			tcfa_flags;
 	u8			hw_stats;

include/net/flow_offload.h

@@ -228,7 +228,7 @@ void flow_action_cookie_destroy(struct flow_action_cookie *cookie);
 struct flow_action_entry {
 	enum flow_action_id		id;
 	u32				hw_index;
-	unsigned long			act_cookie;
+	unsigned long			cookie;
 	enum flow_action_hw_stats	hw_stats;
 	action_destr			destructor;
 	void				*destructor_priv;
@@ -321,7 +321,7 @@ struct flow_action_entry {
 			u16		sid;
 		} pppoe;
 	};
-	struct flow_action_cookie *cookie; /* user defined action cookie */
+	struct flow_action_cookie *user_cookie; /* user defined action cookie */
 };
 
 struct flow_action {

net/sched/act_api.c

@@ -125,7 +125,7 @@ static void free_tcf(struct tc_action *p)
 	free_percpu(p->cpu_bstats_hw);
 	free_percpu(p->cpu_qstats);
 
-	tcf_set_action_cookie(&p->act_cookie, NULL);
+	tcf_set_action_cookie(&p->user_cookie, NULL);
 	if (chain)
 		tcf_chain_put_by_act(chain);
 
@@ -431,14 +431,14 @@ EXPORT_SYMBOL(tcf_idr_release);
 
 static size_t tcf_action_shared_attrs_size(const struct tc_action *act)
 {
-	struct tc_cookie *act_cookie;
+	struct tc_cookie *user_cookie;
 	u32 cookie_len = 0;
 
 	rcu_read_lock();
-	act_cookie = rcu_dereference(act->act_cookie);
+	user_cookie = rcu_dereference(act->user_cookie);
 
-	if (act_cookie)
-		cookie_len = nla_total_size(act_cookie->len);
+	if (user_cookie)
+		cookie_len = nla_total_size(user_cookie->len);
 	rcu_read_unlock();
 
 	return  nla_total_size(0) /* action number nested */
@@ -488,7 +488,7 @@ tcf_action_dump_terse(struct sk_buff *skb, struct tc_action *a, bool from_act)
 		goto nla_put_failure;
 
 	rcu_read_lock();
-	cookie = rcu_dereference(a->act_cookie);
+	cookie = rcu_dereference(a->user_cookie);
 	if (cookie) {
 		if (nla_put(skb, TCA_ACT_COOKIE, cookie->len, cookie->data)) {
 			rcu_read_unlock();
@@ -1362,9 +1362,9 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
 {
 	bool police = flags & TCA_ACT_FLAGS_POLICE;
 	struct nla_bitfield32 userflags = { 0, 0 };
+	struct tc_cookie *user_cookie = NULL;
 	u8 hw_stats = TCA_ACT_HW_STATS_ANY;
 	struct nlattr *tb[TCA_ACT_MAX + 1];
-	struct tc_cookie *cookie = NULL;
 	struct tc_action *a;
 	int err;
 
@@ -1375,8 +1375,8 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
 		if (err < 0)
 			return ERR_PTR(err);
 		if (tb[TCA_ACT_COOKIE]) {
-			cookie = nla_memdup_cookie(tb);
-			if (!cookie) {
+			user_cookie = nla_memdup_cookie(tb);
+			if (!user_cookie) {
 				NL_SET_ERR_MSG(extack, "No memory to generate TC cookie");
 				err = -ENOMEM;
 				goto err_out;
@@ -1402,7 +1402,7 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
 	*init_res = err;
 
 	if (!police && tb[TCA_ACT_COOKIE])
-		tcf_set_action_cookie(&a->act_cookie, cookie);
+		tcf_set_action_cookie(&a->user_cookie, user_cookie);
 
 	if (!police)
 		a->hw_stats = hw_stats;
@@ -1410,9 +1410,9 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
 	return a;
 
 err_out:
-	if (cookie) {
-		kfree(cookie->data);
-		kfree(cookie);
+	if (user_cookie) {
+		kfree(user_cookie->data);
+		kfree(user_cookie);
 	}
 	return ERR_PTR(err);
 }

net/sched/cls_api.c

@@ -3490,28 +3490,28 @@ int tc_setup_cb_reoffload(struct tcf_block *block, struct tcf_proto *tp,
 }
 EXPORT_SYMBOL(tc_setup_cb_reoffload);
 
-static int tcf_act_get_cookie(struct flow_action_entry *entry,
-			      const struct tc_action *act)
+static int tcf_act_get_user_cookie(struct flow_action_entry *entry,
+				   const struct tc_action *act)
 {
-	struct tc_cookie *cookie;
+	struct tc_cookie *user_cookie;
 	int err = 0;
 
 	rcu_read_lock();
-	cookie = rcu_dereference(act->act_cookie);
-	if (cookie) {
-		entry->cookie = flow_action_cookie_create(cookie->data,
-							  cookie->len,
-							  GFP_ATOMIC);
-		if (!entry->cookie)
+	user_cookie = rcu_dereference(act->user_cookie);
+	if (user_cookie) {
+		entry->user_cookie = flow_action_cookie_create(user_cookie->data,
+							       user_cookie->len,
+							       GFP_ATOMIC);
+		if (!entry->user_cookie)
 			err = -ENOMEM;
 	}
 	rcu_read_unlock();
 	return err;
 }
 
-static void tcf_act_put_cookie(struct flow_action_entry *entry)
+static void tcf_act_put_user_cookie(struct flow_action_entry *entry)
 {
-	flow_action_cookie_destroy(entry->cookie);
+	flow_action_cookie_destroy(entry->user_cookie);
 }
 
 void tc_cleanup_offload_action(struct flow_action *flow_action)
@@ -3520,7 +3520,7 @@ void tc_cleanup_offload_action(struct flow_action *flow_action)
 	int i;
 
 	flow_action_for_each(i, entry, flow_action) {
-		tcf_act_put_cookie(entry);
+		tcf_act_put_user_cookie(entry);
 		if (entry->destructor)
 			entry->destructor(entry->destructor_priv);
 	}
@@ -3565,7 +3565,7 @@ int tc_setup_action(struct flow_action *flow_action,
 
 		entry = &flow_action->entries[j];
 		spin_lock_bh(&act->tcfa_lock);
-		err = tcf_act_get_cookie(entry, act);
+		err = tcf_act_get_user_cookie(entry, act);
 		if (err)
 			goto err_out_locked;
 
@@ -3577,7 +3577,7 @@ int tc_setup_action(struct flow_action *flow_action,
 		for (k = 0; k < index ; k++) {
 			entry[k].hw_stats = tc_act_hw_stats(act->hw_stats);
 			entry[k].hw_index = act->tcfa_index;
-			entry[k].act_cookie = (unsigned long)act;
+			entry[k].cookie = (unsigned long)act;
 		}
 
 		j += index;