From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Sat, 9 Jan 2021 00:01:51 +0000 (+0200)
Subject: net: dsa: remove the transactional logic from ageing time notifiers
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=77b61365ecefb2404326c924e215f1ed5a680285;p=linux.git

net: dsa: remove the transactional logic from ageing time notifiers

Remove the shim introduced in DSA for offloading the bridge ageing time
from switchdev, by first checking whether the ageing time is within the
range limits requested by the driver.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 3e6063bf3f176..89143cc049db5 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -29,7 +29,6 @@ enum {
 
 /* DSA_NOTIFIER_AGEING_TIME */
 struct dsa_notifier_ageing_time_info {
-	struct switchdev_trans *trans;
 	unsigned int ageing_time;
 };
 
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 14bf0053ae011..e59bf66c4c0da 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -310,21 +310,17 @@ int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock)
 	unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock);
 	unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
 	struct dsa_notifier_ageing_time_info info;
-	struct switchdev_trans trans;
 	int err;
 
 	info.ageing_time = ageing_time;
-	info.trans = &trans;
 
-	trans.ph_prepare = true;
 	err = dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info);
 	if (err)
 		return err;
 
 	dp->ageing_time = ageing_time;
 
-	trans.ph_prepare = false;
-	return dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info);
+	return 0;
 }
 
 int dsa_port_pre_bridge_flags(const struct dsa_port *dp, unsigned long flags)
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index 17979956d756e..c6b3ac93bcc74 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -33,15 +33,12 @@ static int dsa_switch_ageing_time(struct dsa_switch *ds,
 				  struct dsa_notifier_ageing_time_info *info)
 {
 	unsigned int ageing_time = info->ageing_time;
-	struct switchdev_trans *trans = info->trans;
-
-	if (switchdev_trans_ph_prepare(trans)) {
-		if (ds->ageing_time_min && ageing_time < ds->ageing_time_min)
-			return -ERANGE;
-		if (ds->ageing_time_max && ageing_time > ds->ageing_time_max)
-			return -ERANGE;
-		return 0;
-	}
+
+	if (ds->ageing_time_min && ageing_time < ds->ageing_time_min)
+		return -ERANGE;
+
+	if (ds->ageing_time_max && ageing_time > ds->ageing_time_max)
+		return -ERANGE;
 
 	/* Program the fastest ageing time in case of multiple bridges */
 	ageing_time = dsa_switch_fastest_ageing_time(ds, ageing_time);