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53 lines
1.7 KiB
Diff
53 lines
1.7 KiB
Diff
From 904e112ad431492b34f235f59738e8312802bbf9 Mon Sep 17 00:00:00 2001
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From: Vladimir Oltean <vladimir.oltean@nxp.com>
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Date: Thu, 6 Jan 2022 01:11:12 +0200
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Subject: [PATCH 1/6] net: dsa: reorder PHY initialization with MTU setup in
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slave.c
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In dsa_slave_create() there are 2 sections that take rtnl_lock():
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MTU change and netdev registration. They are separated by PHY
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initialization.
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There isn't any strict ordering requirement except for the fact that
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netdev registration should be last. Therefore, we can perform the MTU
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change a bit later, after the PHY setup. A future change will then be
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able to merge the two rtnl_lock sections into one.
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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: David S. Miller <davem@davemloft.net>
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---
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net/dsa/slave.c | 14 +++++++-------
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1 file changed, 7 insertions(+), 7 deletions(-)
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--- a/net/dsa/slave.c
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+++ b/net/dsa/slave.c
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@@ -1977,13 +1977,6 @@ int dsa_slave_create(struct dsa_port *po
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port->slave = slave_dev;
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dsa_slave_setup_tagger(slave_dev);
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- rtnl_lock();
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- ret = dsa_slave_change_mtu(slave_dev, ETH_DATA_LEN);
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- rtnl_unlock();
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- if (ret && ret != -EOPNOTSUPP)
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- dev_warn(ds->dev, "nonfatal error %d setting MTU to %d on port %d\n",
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- ret, ETH_DATA_LEN, port->index);
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-
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netif_carrier_off(slave_dev);
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ret = dsa_slave_phy_setup(slave_dev);
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@@ -1995,6 +1988,13 @@ int dsa_slave_create(struct dsa_port *po
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}
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rtnl_lock();
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+ ret = dsa_slave_change_mtu(slave_dev, ETH_DATA_LEN);
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+ rtnl_unlock();
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+ if (ret && ret != -EOPNOTSUPP)
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+ dev_warn(ds->dev, "nonfatal error %d setting MTU to %d on port %d\n",
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+ ret, ETH_DATA_LEN, port->index);
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+
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+ rtnl_lock();
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ret = register_netdevice(slave_dev);
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if (ret) {
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