From: Jiri Pirko <jiri@mellanox.com>
Date: Sat, 5 Oct 2019 06:10:32 +0000 (+0200)
Subject: netdevsim: create devlink and netdev instances in namespace
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7b60027bbc6738b067bb9ed732a8c56b0ac430b2;p=linux.git

netdevsim: create devlink and netdev instances in namespace

When user does create new netdevsim instance using sysfs bus file,
create the devlink instance and related netdev instance in the namespace
of the caller.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/netdevsim/bus.c b/drivers/net/netdevsim/bus.c
index 1a0ff3d7747b2..6aeed0c600f84 100644
--- a/drivers/net/netdevsim/bus.c
+++ b/drivers/net/netdevsim/bus.c
@@ -283,6 +283,7 @@ nsim_bus_dev_new(unsigned int id, unsigned int port_count)
 	nsim_bus_dev->dev.bus = &nsim_bus;
 	nsim_bus_dev->dev.type = &nsim_bus_dev_type;
 	nsim_bus_dev->port_count = port_count;
+	nsim_bus_dev->initial_net = current->nsproxy->net_ns;
 
 	err = device_register(&nsim_bus_dev->dev);
 	if (err)
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index 3f3c7cc210770..fbc4cdcfe551a 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -726,6 +726,7 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
 	devlink = devlink_alloc(&nsim_dev_devlink_ops, sizeof(*nsim_dev));
 	if (!devlink)
 		return ERR_PTR(-ENOMEM);
+	devlink_net_set(devlink, nsim_bus_dev->initial_net);
 	nsim_dev = devlink_priv(devlink);
 	nsim_dev->nsim_bus_dev = nsim_bus_dev;
 	nsim_dev->switch_id.id_len = sizeof(nsim_dev->switch_id.id);
diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
index 198ca31cec94c..8168a5475fe71 100644
--- a/drivers/net/netdevsim/netdevsim.h
+++ b/drivers/net/netdevsim/netdevsim.h
@@ -220,6 +220,9 @@ struct nsim_bus_dev {
 	struct device dev;
 	struct list_head list;
 	unsigned int port_count;
+	struct net *initial_net; /* Purpose of this is to carry net pointer
+				  * during the probe time only.
+				  */
 	unsigned int num_vfs;
 	struct nsim_vf_config *vfconfigs;
 };