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From 447d290a58bd335d68f665713842365d3d6447df Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Wed, 6 Jan 2021 11:51:33 +0200
Subject: [PATCH] net: dsa: move switchdev event implementation under the same
switch/case statement
We'll need to start listening to SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE
events even for interfaces where dsa_slave_dev_check returns false, so
we need that check inside the switch-case statement for SWITCHDEV_FDB_*.
This movement also avoids a useless allocation / free of switchdev_work
on the untreated "default event" case.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
net/dsa/slave.c | 35 ++++++++++++++++-------------------
1 file changed, 16 insertions(+), 19 deletions(-)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1640,31 +1640,29 @@ static int dsa_slave_switchdev_event(str
struct dsa_port *dp;
int err;
- if (event == SWITCHDEV_PORT_ATTR_SET) {
+ switch (event) {
+ case SWITCHDEV_PORT_ATTR_SET:
err = switchdev_handle_port_attr_set(dev, ptr,
dsa_slave_dev_check,
dsa_slave_port_attr_set);
return notifier_from_errno(err);
- }
-
- if (!dsa_slave_dev_check(dev))
- return NOTIFY_DONE;
+ case SWITCHDEV_FDB_ADD_TO_DEVICE:
+ case SWITCHDEV_FDB_DEL_TO_DEVICE:
+ if (!dsa_slave_dev_check(dev))
+ return NOTIFY_DONE;
- dp = dsa_slave_to_port(dev);
+ dp = dsa_slave_to_port(dev);
- switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
- if (!switchdev_work)
- return NOTIFY_BAD;
-
- INIT_WORK(&switchdev_work->work,
- dsa_slave_switchdev_event_work);
- switchdev_work->ds = dp->ds;
- switchdev_work->port = dp->index;
- switchdev_work->event = event;
+ switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
+ if (!switchdev_work)
+ return NOTIFY_BAD;
+
+ INIT_WORK(&switchdev_work->work,
+ dsa_slave_switchdev_event_work);
+ switchdev_work->ds = dp->ds;
+ switchdev_work->port = dp->index;
+ switchdev_work->event = event;
- switch (event) {
- case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */
- case SWITCHDEV_FDB_DEL_TO_DEVICE:
fdb_info = ptr;
if (!fdb_info->added_by_user) {
@@ -1677,13 +1675,12 @@ static int dsa_slave_switchdev_event(str
switchdev_work->vid = fdb_info->vid;
dev_hold(dev);
+ dsa_schedule_work(&switchdev_work->work);
break;
default:
- kfree(switchdev_work);
return NOTIFY_DONE;
}
- dsa_schedule_work(&switchdev_work->work);
return NOTIFY_OK;
}
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