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98b1a6435f
Without this patch we have to manually bring up the CPU interface in
failsafe mode.
This was backported from kernel 5.12.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 2e17c71095)
86 lines
2.5 KiB
Diff
86 lines
2.5 KiB
Diff
From 447d290a58bd335d68f665713842365d3d6447df Mon Sep 17 00:00:00 2001
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From: Vladimir Oltean <vladimir.oltean@nxp.com>
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Date: Wed, 6 Jan 2021 11:51:33 +0200
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Subject: [PATCH] net: dsa: move switchdev event implementation under the same
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switch/case statement
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We'll need to start listening to SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE
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events even for interfaces where dsa_slave_dev_check returns false, so
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we need that check inside the switch-case statement for SWITCHDEV_FDB_*.
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This movement also avoids a useless allocation / free of switchdev_work
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on the untreated "default event" case.
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Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
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Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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net/dsa/slave.c | 35 ++++++++++++++++-------------------
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1 file changed, 16 insertions(+), 19 deletions(-)
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--- a/net/dsa/slave.c
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+++ b/net/dsa/slave.c
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@@ -1642,31 +1642,29 @@ static int dsa_slave_switchdev_event(str
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struct dsa_port *dp;
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int err;
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- if (event == SWITCHDEV_PORT_ATTR_SET) {
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+ switch (event) {
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+ case SWITCHDEV_PORT_ATTR_SET:
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err = switchdev_handle_port_attr_set(dev, ptr,
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dsa_slave_dev_check,
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dsa_slave_port_attr_set);
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return notifier_from_errno(err);
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- }
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-
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- if (!dsa_slave_dev_check(dev))
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- return NOTIFY_DONE;
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+ case SWITCHDEV_FDB_ADD_TO_DEVICE:
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+ case SWITCHDEV_FDB_DEL_TO_DEVICE:
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+ if (!dsa_slave_dev_check(dev))
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+ return NOTIFY_DONE;
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- dp = dsa_slave_to_port(dev);
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+ dp = dsa_slave_to_port(dev);
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- switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
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- if (!switchdev_work)
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- return NOTIFY_BAD;
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-
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- INIT_WORK(&switchdev_work->work,
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- dsa_slave_switchdev_event_work);
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- switchdev_work->ds = dp->ds;
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- switchdev_work->port = dp->index;
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- switchdev_work->event = event;
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+ switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
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+ if (!switchdev_work)
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+ return NOTIFY_BAD;
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+
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+ INIT_WORK(&switchdev_work->work,
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+ dsa_slave_switchdev_event_work);
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+ switchdev_work->ds = dp->ds;
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+ switchdev_work->port = dp->index;
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+ switchdev_work->event = event;
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- switch (event) {
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- case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */
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- case SWITCHDEV_FDB_DEL_TO_DEVICE:
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fdb_info = ptr;
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if (!fdb_info->added_by_user) {
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@@ -1679,13 +1677,12 @@ static int dsa_slave_switchdev_event(str
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switchdev_work->vid = fdb_info->vid;
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dev_hold(dev);
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+ dsa_schedule_work(&switchdev_work->work);
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break;
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default:
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- kfree(switchdev_work);
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return NOTIFY_DONE;
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}
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- dsa_schedule_work(&switchdev_work->work);
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return NOTIFY_OK;
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}
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