net: sched: alias action flags with TCA_ACT_ prefix

Currently both filter and action flags use same "TCA_" prefix which makes
them hard to distinguish to code and confusing for users. Create aliases
for existing action flags constants with "TCA_ACT_" prefix.
Signed-off-by: Vlad Buslov <vlad@buslov.dev>
Link: https://lore.kernel.org/r/20201124164054.893168-1-vlad@buslov.devSigned-off-by: Jakub Kicinski <kuba@kernel.org>

include/uapi/linux/rtnetlink.h

@@ -768,16 +768,18 @@ enum {
 #define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
 /* tcamsg flags stored in attribute TCA_ROOT_FLAGS
  *
- * TCA_FLAG_LARGE_DUMP_ON user->kernel to request for larger than TCA_ACT_MAX_PRIO
- * actions in a dump. All dump responses will contain the number of actions
- * being dumped stored in for user app's consumption in TCA_ROOT_COUNT
+ * TCA_ACT_FLAG_LARGE_DUMP_ON user->kernel to request for larger than
+ * TCA_ACT_MAX_PRIO actions in a dump. All dump responses will contain the
+ * number of actions being dumped stored in for user app's consumption in
+ * TCA_ROOT_COUNT
  *
- * TCA_FLAG_TERSE_DUMP user->kernel to request terse (brief) dump that only
+ * TCA_ACT_FLAG_TERSE_DUMP user->kernel to request terse (brief) dump that only
  * includes essential action info (kind, index, etc.)
  *
  */
 #define TCA_FLAG_LARGE_DUMP_ON		(1 << 0)
-#define TCA_FLAG_TERSE_DUMP		(1 << 1)
+#define TCA_ACT_FLAG_LARGE_DUMP_ON	TCA_FLAG_LARGE_DUMP_ON
+#define TCA_ACT_FLAG_TERSE_DUMP		(1 << 1)
 
 /* New extended info filters for IFLA_EXT_MASK */
 #define RTEXT_FILTER_VF		(1 << 0)

net/sched/act_api.c

@@ -278,7 +278,7 @@ static int tcf_dump_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
 			index--;
 			goto nla_put_failure;
 		}
-		err = (act_flags & TCA_FLAG_TERSE_DUMP) ?
+		err = (act_flags & TCA_ACT_FLAG_TERSE_DUMP) ?
 			tcf_action_dump_terse(skb, p, true) :
 			tcf_action_dump_1(skb, p, 0, 0);
 		if (err < 0) {
@@ -288,7 +288,7 @@ static int tcf_dump_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
 		}
 		nla_nest_end(skb, nest);
 		n_i++;
-		if (!(act_flags & TCA_FLAG_LARGE_DUMP_ON) &&
+		if (!(act_flags & TCA_ACT_FLAG_LARGE_DUMP_ON) &&
 		    n_i >= TCA_ACT_MAX_PRIO)
 			goto done;
 	}
@@ -298,7 +298,7 @@ static int tcf_dump_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
 
 	mutex_unlock(&idrinfo->lock);
 	if (n_i) {
-		if (act_flags & TCA_FLAG_LARGE_DUMP_ON)
+		if (act_flags & TCA_ACT_FLAG_LARGE_DUMP_ON)
 			cb->args[1] = n_i;
 	}
 	return n_i;
@@ -1473,8 +1473,8 @@ static int tcf_action_add(struct net *net, struct nlattr *nla,
 }
 
 static const struct nla_policy tcaa_policy[TCA_ROOT_MAX + 1] = {
-	[TCA_ROOT_FLAGS] = NLA_POLICY_BITFIELD32(TCA_FLAG_LARGE_DUMP_ON |
-						 TCA_FLAG_TERSE_DUMP),
+	[TCA_ROOT_FLAGS] = NLA_POLICY_BITFIELD32(TCA_ACT_FLAG_LARGE_DUMP_ON |
+						 TCA_ACT_FLAG_TERSE_DUMP),
 	[TCA_ROOT_TIME_DELTA]      = { .type = NLA_U32 },
 };