kernel: Backport patch to automatically bring up DSA master when opening user port

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>
This commit is contained in:
Hauke Mehrtens 2021-06-22 00:45:18 +02:00
parent 2a3b2f59fe
commit 2e17c71095
21 changed files with 210 additions and 40 deletions

View File

@ -1,6 +1,6 @@
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -383,6 +383,13 @@ static int at803x_aneg_done(struct phy_d
@@ -404,6 +404,13 @@ static int at803x_aneg_done(struct phy_d
if (!(phy_read(phydev, AT803X_PSSR) & AT803X_PSSR_MR_AN_COMPLETE)) {
phydev_warn(phydev, "803x_aneg_done: SGMII link is not ok\n");
aneg_done = 0;

View File

@ -0,0 +1,85 @@
From 9d5ef190e5615a7b63af89f88c4106a5bc127974 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Fri, 5 Feb 2021 15:37:10 +0200
Subject: [PATCH] net: dsa: automatically bring up DSA master when opening user
port
DSA wants the master interface to be open before the user port is due to
historical reasons. The promiscuity of interfaces that are down used to
have issues, as referenced Lennert Buytenhek in commit df02c6ff2e39
("dsa: fix master interface allmulti/promisc handling").
The bugfix mentioned there, commit b6c40d68ff64 ("net: only invoke
dev->change_rx_flags when device is UP"), was basically a "don't do
that" approach to working around the promiscuity while down issue.
Further work done by Vlad Yasevich in commit d2615bf45069 ("net: core:
Always propagate flag changes to interfaces") has resolved the
underlying issue, and it is strictly up to the DSA and 8021q drivers
now, it is no longer mandated by the networking core that the master
interface must be up when changing its promiscuity.
From DSA's point of view, deciding to error out in dsa_slave_open
because the master isn't up is
(a) a bad user experience and
(b) knocking at an open door.
Even if there still was an issue with promiscuity while down, DSA could
still just open the master and avoid it.
Doing it this way has the additional benefit that user space can now
remove DSA-specific workarounds, like systemd-networkd with BindCarrier:
https://github.com/systemd/systemd/issues/7478
And we can finally remove one of the 2 bullets in the "Common pitfalls
using DSA setups" chapter.
Tested with two cascaded DSA switches:
$ ip link set sw0p2 up
fsl_enetc 0000:00:00.2 eno2: configuring for fixed/internal link mode
fsl_enetc 0000:00:00.2 eno2: Link is Up - 1Gbps/Full - flow control rx/tx
mscc_felix 0000:00:00.5 swp0: configuring for fixed/sgmii link mode
mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Full - flow control off
8021q: adding VLAN 0 to HW filter on device swp0
sja1105 spi2.0 sw0p2: configuring for phy/rgmii-id link mode
IPv6: ADDRCONF(NETDEV_CHANGE): eno2: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): swp0: link becomes ready
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
Documentation/networking/dsa/dsa.rst | 4 ----
net/dsa/slave.c | 7 +++++--
2 files changed, 5 insertions(+), 6 deletions(-)
--- a/Documentation/networking/dsa/dsa.rst
+++ b/Documentation/networking/dsa/dsa.rst
@@ -273,10 +273,6 @@ will not make us go through the switch t
the Ethernet switch on the other end, expecting a tag will typically drop this
frame.
-Slave network devices check that the master network device is UP before allowing
-you to administratively bring UP these slave network devices. A common
-configuration mistake is forgetting to bring UP the master network device first.
-
Interactions with other subsystems
==================================
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -68,8 +68,11 @@ static int dsa_slave_open(struct net_dev
struct dsa_port *dp = dsa_slave_to_port(dev);
int err;
- if (!(master->flags & IFF_UP))
- return -ENETDOWN;
+ err = dev_open(master, NULL);
+ if (err < 0) {
+ netdev_err(dev, "failed to open master %s\n", master->name);
+ goto out;
+ }
if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) {
err = dev_uc_add(master, dev->dev_addr);

View File

@ -25,7 +25,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2111,7 +2111,9 @@ static void dsa_slave_switchdev_event_wo
@@ -2114,7 +2114,9 @@ static void dsa_slave_switchdev_event_wo
err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid);
if (err) {
@ -36,7 +36,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
break;
}
fdb_info->offloaded = true;
@@ -2126,9 +2128,11 @@ static void dsa_slave_switchdev_event_wo
@@ -2129,9 +2131,11 @@ static void dsa_slave_switchdev_event_wo
err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid);
if (err) {

View File

@ -54,7 +54,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
struct sk_buff * (*xmit)(struct sk_buff *skb,
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2086,76 +2086,66 @@ static int dsa_slave_netdevice_event(str
@@ -2089,76 +2089,66 @@ static int dsa_slave_netdevice_event(str
return NOTIFY_DONE;
}
@ -167,7 +167,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
}
/* Called under rcu_read_lock() */
@@ -2163,7 +2153,9 @@ static int dsa_slave_switchdev_event(str
@@ -2166,7 +2156,9 @@ static int dsa_slave_switchdev_event(str
unsigned long event, void *ptr)
{
struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
@ -177,7 +177,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
int err;
if (event == SWITCHDEV_PORT_ATTR_SET) {
@@ -2176,20 +2168,32 @@ static int dsa_slave_switchdev_event(str
@@ -2179,20 +2171,32 @@ static int dsa_slave_switchdev_event(str
if (!dsa_slave_dev_check(dev))
return NOTIFY_DONE;
@ -213,7 +213,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
dev_hold(dev);
break;
default:
@@ -2199,10 +2203,6 @@ static int dsa_slave_switchdev_event(str
@@ -2202,10 +2206,6 @@ static int dsa_slave_switchdev_event(str
dsa_schedule_work(&switchdev_work->work);
return NOTIFY_OK;

View File

@ -20,7 +20,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2158,31 +2158,29 @@ static int dsa_slave_switchdev_event(str
@@ -2161,31 +2161,29 @@ static int dsa_slave_switchdev_event(str
struct dsa_port *dp;
int err;
@ -68,7 +68,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
fdb_info = ptr;
if (!fdb_info->added_by_user) {
@@ -2195,13 +2193,12 @@ static int dsa_slave_switchdev_event(str
@@ -2198,13 +2196,12 @@ static int dsa_slave_switchdev_event(str
switchdev_work->vid = fdb_info->vid;
dev_hold(dev);

View File

@ -30,7 +30,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2171,6 +2171,9 @@ static int dsa_slave_switchdev_event(str
@@ -2174,6 +2174,9 @@ static int dsa_slave_switchdev_event(str
dp = dsa_slave_to_port(dev);

View File

@ -170,7 +170,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
*/
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2148,6 +2148,28 @@ static void dsa_slave_switchdev_event_wo
@@ -2151,6 +2151,28 @@ static void dsa_slave_switchdev_event_wo
dev_put(dp->slave);
}
@ -199,7 +199,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
/* Called under rcu_read_lock() */
static int dsa_slave_switchdev_event(struct notifier_block *unused,
unsigned long event, void *ptr)
@@ -2166,10 +2188,37 @@ static int dsa_slave_switchdev_event(str
@@ -2169,10 +2191,37 @@ static int dsa_slave_switchdev_event(str
return notifier_from_errno(err);
case SWITCHDEV_FDB_ADD_TO_DEVICE:
case SWITCHDEV_FDB_DEL_TO_DEVICE:
@ -240,7 +240,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
if (!dp->ds->ops->port_fdb_add || !dp->ds->ops->port_fdb_del)
return NOTIFY_DONE;
@@ -2184,18 +2233,13 @@ static int dsa_slave_switchdev_event(str
@@ -2187,18 +2236,13 @@ static int dsa_slave_switchdev_event(str
switchdev_work->port = dp->index;
switchdev_work->event = event;

View File

@ -0,0 +1,85 @@
From 9d5ef190e5615a7b63af89f88c4106a5bc127974 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Fri, 5 Feb 2021 15:37:10 +0200
Subject: [PATCH] net: dsa: automatically bring up DSA master when opening user
port
DSA wants the master interface to be open before the user port is due to
historical reasons. The promiscuity of interfaces that are down used to
have issues, as referenced Lennert Buytenhek in commit df02c6ff2e39
("dsa: fix master interface allmulti/promisc handling").
The bugfix mentioned there, commit b6c40d68ff64 ("net: only invoke
dev->change_rx_flags when device is UP"), was basically a "don't do
that" approach to working around the promiscuity while down issue.
Further work done by Vlad Yasevich in commit d2615bf45069 ("net: core:
Always propagate flag changes to interfaces") has resolved the
underlying issue, and it is strictly up to the DSA and 8021q drivers
now, it is no longer mandated by the networking core that the master
interface must be up when changing its promiscuity.
From DSA's point of view, deciding to error out in dsa_slave_open
because the master isn't up is
(a) a bad user experience and
(b) knocking at an open door.
Even if there still was an issue with promiscuity while down, DSA could
still just open the master and avoid it.
Doing it this way has the additional benefit that user space can now
remove DSA-specific workarounds, like systemd-networkd with BindCarrier:
https://github.com/systemd/systemd/issues/7478
And we can finally remove one of the 2 bullets in the "Common pitfalls
using DSA setups" chapter.
Tested with two cascaded DSA switches:
$ ip link set sw0p2 up
fsl_enetc 0000:00:00.2 eno2: configuring for fixed/internal link mode
fsl_enetc 0000:00:00.2 eno2: Link is Up - 1Gbps/Full - flow control rx/tx
mscc_felix 0000:00:00.5 swp0: configuring for fixed/sgmii link mode
mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Full - flow control off
8021q: adding VLAN 0 to HW filter on device swp0
sja1105 spi2.0 sw0p2: configuring for phy/rgmii-id link mode
IPv6: ADDRCONF(NETDEV_CHANGE): eno2: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): swp0: link becomes ready
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
Documentation/networking/dsa/dsa.rst | 4 ----
net/dsa/slave.c | 7 +++++--
2 files changed, 5 insertions(+), 6 deletions(-)
--- a/Documentation/networking/dsa/dsa.rst
+++ b/Documentation/networking/dsa/dsa.rst
@@ -273,10 +273,6 @@ will not make us go through the switch t
the Ethernet switch on the other end, expecting a tag will typically drop this
frame.
-Slave network devices check that the master network device is UP before allowing
-you to administratively bring UP these slave network devices. A common
-configuration mistake is forgetting to bring UP the master network device first.
-
Interactions with other subsystems
==================================
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -70,8 +70,11 @@ static int dsa_slave_open(struct net_dev
struct dsa_port *dp = dsa_slave_to_port(dev);
int err;
- if (!(master->flags & IFF_UP))
- return -ENETDOWN;
+ err = dev_open(master, NULL);
+ if (err < 0) {
+ netdev_err(dev, "failed to open master %s\n", master->name);
+ goto out;
+ }
if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) {
err = dev_uc_add(master, dev->dev_addr);

View File

@ -25,7 +25,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1592,7 +1592,9 @@ static void dsa_slave_switchdev_event_wo
@@ -1595,7 +1595,9 @@ static void dsa_slave_switchdev_event_wo
err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid);
if (err) {
@ -36,7 +36,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
break;
}
fdb_info->offloaded = true;
@@ -1607,9 +1609,11 @@ static void dsa_slave_switchdev_event_wo
@@ -1610,9 +1612,11 @@ static void dsa_slave_switchdev_event_wo
err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid);
if (err) {

View File

@ -54,7 +54,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
struct sk_buff * (*xmit)(struct sk_buff *skb,
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1567,76 +1567,66 @@ static int dsa_slave_netdevice_event(str
@@ -1570,76 +1570,66 @@ static int dsa_slave_netdevice_event(str
return NOTIFY_DONE;
}
@ -167,7 +167,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
}
/* Called under rcu_read_lock() */
@@ -1644,7 +1634,9 @@ static int dsa_slave_switchdev_event(str
@@ -1647,7 +1637,9 @@ static int dsa_slave_switchdev_event(str
unsigned long event, void *ptr)
{
struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
@ -177,7 +177,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
int err;
if (event == SWITCHDEV_PORT_ATTR_SET) {
@@ -1657,20 +1649,32 @@ static int dsa_slave_switchdev_event(str
@@ -1660,20 +1652,32 @@ static int dsa_slave_switchdev_event(str
if (!dsa_slave_dev_check(dev))
return NOTIFY_DONE;
@ -213,7 +213,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
dev_hold(dev);
break;
default:
@@ -1680,10 +1684,6 @@ static int dsa_slave_switchdev_event(str
@@ -1683,10 +1687,6 @@ static int dsa_slave_switchdev_event(str
dsa_schedule_work(&switchdev_work->work);
return NOTIFY_OK;

View File

@ -20,7 +20,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1639,31 +1639,29 @@ static int dsa_slave_switchdev_event(str
@@ -1642,31 +1642,29 @@ static int dsa_slave_switchdev_event(str
struct dsa_port *dp;
int err;
@ -68,7 +68,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
fdb_info = ptr;
if (!fdb_info->added_by_user) {
@@ -1676,13 +1674,12 @@ static int dsa_slave_switchdev_event(str
@@ -1679,13 +1677,12 @@ static int dsa_slave_switchdev_event(str
switchdev_work->vid = fdb_info->vid;
dev_hold(dev);

View File

@ -30,7 +30,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1652,6 +1652,9 @@ static int dsa_slave_switchdev_event(str
@@ -1655,6 +1655,9 @@ static int dsa_slave_switchdev_event(str
dp = dsa_slave_to_port(dev);

View File

@ -172,7 +172,7 @@ Signed-off-by: DENG Qingfang <dqfext@gmail.com>
*/
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1629,6 +1629,25 @@ static void dsa_slave_switchdev_event_wo
@@ -1632,6 +1632,25 @@ static void dsa_slave_switchdev_event_wo
dev_put(dp->slave);
}
@ -198,7 +198,7 @@ Signed-off-by: DENG Qingfang <dqfext@gmail.com>
/* Called under rcu_read_lock() */
static int dsa_slave_switchdev_event(struct notifier_block *unused,
unsigned long event, void *ptr)
@@ -1647,10 +1666,37 @@ static int dsa_slave_switchdev_event(str
@@ -1650,10 +1669,37 @@ static int dsa_slave_switchdev_event(str
return notifier_from_errno(err);
case SWITCHDEV_FDB_ADD_TO_DEVICE:
case SWITCHDEV_FDB_DEL_TO_DEVICE:
@ -239,7 +239,7 @@ Signed-off-by: DENG Qingfang <dqfext@gmail.com>
if (!dp->ds->ops->port_fdb_add || !dp->ds->ops->port_fdb_del)
return NOTIFY_DONE;
@@ -1665,18 +1711,13 @@ static int dsa_slave_switchdev_event(str
@@ -1668,18 +1714,13 @@ static int dsa_slave_switchdev_event(str
switchdev_work->port = dp->index;
switchdev_work->event = event;

View File

@ -18,7 +18,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2191,10 +2191,12 @@ static int dsa_slave_switchdev_event(str
@@ -2194,10 +2194,12 @@ static int dsa_slave_switchdev_event(str
fdb_info = ptr;
if (dsa_slave_dev_check(dev)) {

View File

@ -15,7 +15,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2205,7 +2205,11 @@ static int dsa_slave_switchdev_event(str
@@ -2208,7 +2208,11 @@ static int dsa_slave_switchdev_event(str
struct net_device *br_dev;
struct dsa_slave_priv *p;

View File

@ -28,7 +28,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2198,9 +2198,12 @@ static int dsa_slave_switchdev_event(str
@@ -2201,9 +2201,12 @@ static int dsa_slave_switchdev_event(str
else if (!fdb_info->added_by_user)
return NOTIFY_OK;
} else {
@ -44,7 +44,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
*/
struct net_device *br_dev;
struct dsa_slave_priv *p;
@@ -2222,7 +2225,8 @@ static int dsa_slave_switchdev_event(str
@@ -2225,7 +2228,8 @@ static int dsa_slave_switchdev_event(str
dp = p->dp->cpu_dp;

View File

@ -17,9 +17,9 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
#define AT803X_PHY_ID_MASK 0xffffffef
+#define AT8032_PHY_ID_MASK 0xffffffff
MODULE_DESCRIPTION("Atheros 803x PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
@@ -314,7 +316,7 @@ static int at803x_config_intr(struct phy
#define AT803X_PAGE_FIBER 0
#define AT803X_PAGE_COPPER 1
@@ -357,7 +359,7 @@ static int at803x_config_intr(struct phy
static void at803x_link_change_notify(struct phy_device *phydev)
{
/*
@ -28,7 +28,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
* signalled. This is necessary to circumvent a hardware bug that
* occurs when the cable is unplugged while TX packets are pending
* in the FIFO. In such cases, the FIFO enters an error mode it
@@ -471,6 +473,24 @@ static struct phy_driver at803x_driver[]
@@ -516,6 +518,24 @@ static struct phy_driver at803x_driver[]
.aneg_done = at803x_aneg_done,
.ack_interrupt = &at803x_ack_interrupt,
.config_intr = &at803x_config_intr,
@ -53,7 +53,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
} };
module_phy_driver(at803x_driver);
@@ -478,6 +498,7 @@ module_phy_driver(at803x_driver);
@@ -523,6 +543,7 @@ module_phy_driver(at803x_driver);
static struct mdio_device_id __maybe_unused atheros_tbl[] = {
{ ATH8030_PHY_ID, AT803X_PHY_ID_MASK },
{ ATH8031_PHY_ID, AT803X_PHY_ID_MASK },

View File

@ -38,7 +38,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
#include "dsa_priv.h"
@@ -1223,6 +1227,27 @@ static struct devlink_port *dsa_slave_ge
@@ -1226,6 +1230,27 @@ static struct devlink_port *dsa_slave_ge
return dp->ds->devlink ? &dp->devlink_port : NULL;
}
@ -66,7 +66,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_open = dsa_slave_open,
.ndo_stop = dsa_slave_close,
@@ -1247,6 +1272,9 @@ static const struct net_device_ops dsa_s
@@ -1250,6 +1275,9 @@ static const struct net_device_ops dsa_s
.ndo_vlan_rx_add_vid = dsa_slave_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid,
.ndo_get_devlink_port = dsa_slave_get_devlink_port,

View File

@ -18,7 +18,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1697,10 +1697,12 @@ static int dsa_slave_switchdev_event(str
@@ -1700,10 +1700,12 @@ static int dsa_slave_switchdev_event(str
fdb_info = ptr;
if (dsa_slave_dev_check(dev)) {

View File

@ -15,7 +15,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1711,7 +1711,11 @@ static int dsa_slave_switchdev_event(str
@@ -1714,7 +1714,11 @@ static int dsa_slave_switchdev_event(str
struct net_device *br_dev;
struct dsa_slave_priv *p;

View File

@ -28,7 +28,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1704,9 +1704,12 @@ static int dsa_slave_switchdev_event(str
@@ -1707,9 +1707,12 @@ static int dsa_slave_switchdev_event(str
else if (!fdb_info->added_by_user)
return NOTIFY_OK;
} else {
@ -44,7 +44,7 @@ Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
*/
struct net_device *br_dev;
struct dsa_slave_priv *p;
@@ -1728,7 +1731,8 @@ static int dsa_slave_switchdev_event(str
@@ -1731,7 +1734,8 @@ static int dsa_slave_switchdev_event(str
dp = p->dp->cpu_dp;