diff options
Diffstat (limited to 'pkgs/patches-linux-5.15/765-2-net-next-net-dsa-merge-rtnl_lock-sections-in-dsa_slave_create.patch')
| -rw-r--r-- | pkgs/patches-linux-5.15/765-2-net-next-net-dsa-merge-rtnl_lock-sections-in-dsa_slave_create.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/765-2-net-next-net-dsa-merge-rtnl_lock-sections-in-dsa_slave_create.patch b/pkgs/patches-linux-5.15/765-2-net-next-net-dsa-merge-rtnl_lock-sections-in-dsa_slave_create.patch new file mode 100644 index 0000000..c2493a0 --- /dev/null +++ b/pkgs/patches-linux-5.15/765-2-net-next-net-dsa-merge-rtnl_lock-sections-in-dsa_slave_create.patch @@ -0,0 +1,34 @@ +From e31dbd3b6aba585231cd84a87adeb22e7c6a8c19 Mon Sep 17 00:00:00 2001 +From: Vladimir Oltean <vladimir.oltean@nxp.com> +Date: Thu, 6 Jan 2022 01:11:13 +0200 +Subject: [PATCH 2/6] net: dsa: merge rtnl_lock sections in dsa_slave_create + +Currently dsa_slave_create() has two sequences of rtnl_lock/rtnl_unlock +in a row. Remove the rtnl_unlock() and rtnl_lock() in between, such that +the operation can execute slighly faster. + +Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + net/dsa/slave.c | 4 +--- + 1 file changed, 1 insertion(+), 3 deletions(-) + +--- a/net/dsa/slave.c ++++ b/net/dsa/slave.c +@@ -1997,14 +1997,12 @@ int dsa_slave_create(struct dsa_port *po + } + + rtnl_lock(); ++ + ret = dsa_slave_change_mtu(slave_dev, ETH_DATA_LEN); +- rtnl_unlock(); + if (ret && ret != -EOPNOTSUPP) + dev_warn(ds->dev, "nonfatal error %d setting MTU to %d on port %d\n", + ret, ETH_DATA_LEN, port->index); + +- rtnl_lock(); +- + ret = register_netdevice(slave_dev); + if (ret) { + netdev_err(master, "error %d registering interface %s\n", |