netdev - [PATCH v4 net-next 09/11] net: dsa: remove obsolete comments about switchdev transactions

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Date:   Sat,  9 Jan 2021 02:01:54 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Woojung Huh <woojung.huh@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Vadym Kochan <vkochan@...vell.com>,
        Taras Chornyi <tchornyi@...vell.com>,
        Jiri Pirko <jiri@...dia.com>, Ido Schimmel <idosch@...dia.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Ivan Vecera <ivecera@...hat.com>,
        Petr Machata <petrm@...dia.com>
Subject: [PATCH v4 net-next 09/11] net: dsa: remove obsolete comments about switchdev transactions

From: Vladimir Oltean <vladimir.oltean@....com>

Now that all port object notifiers were converted to be non-transactional,
we can remove the comments that say otherwise.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
Acked-by: Linus Walleij <linus.walleij@...aro.org>
Acked-by: Jiri Pirko <jiri@...dia.com>
---
Changes in v4:
None.

Changes in v3:
None.

Changes in v2:
None.

 net/dsa/slave.c  | 5 -----
 net/dsa/switch.c | 4 ----
 2 files changed, 9 deletions(-)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index ca0be052af25..d84ddf889f3a 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -373,11 +373,6 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
 	struct dsa_port *dp = dsa_slave_to_port(dev);
 	int err;
 
-	/* For the prepare phase, ensure the full set of changes is feasable in
-	 * one go in order to signal a failure properly. If an operation is not
-	 * supported, return -EOPNOTSUPP.
-	 */
-
 	switch (obj->id) {
 	case SWITCHDEV_OBJ_ID_PORT_MDB:
 		if (obj->orig_dev != dev)
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index f92eaacb17cf..21d2f842d068 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -298,10 +298,6 @@ static int dsa_switch_event(struct notifier_block *nb,
 		break;
 	}
 
-	/* Non-switchdev operations cannot be rolled back. If a DSA driver
-	 * returns an error during the chained call, switch chips may be in an
-	 * inconsistent state.
-	 */
 	if (err)
 		dev_dbg(ds->dev, "breaking chain for DSA event %lu (%d)\n",
 			event, err);
-- 
2.25.1