net: core: dev: Add extack argument to __dev_change_flags()

In order to pass extack together with NETDEV_PRE_UP notifications, it's
necessary to route the extack to __dev_open() from diverse (possibly
indirect) callers. The last missing API is __dev_change_flags().

Therefore extend __dev_change_flags() with and extra extack argument and
update the two existing users.

Since the function declaration line is changed anyway, name the struct
net_device argument to placate checkpatch.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 18cf464..fc6ba71 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3611,7 +3611,8 @@ int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr,
 int dev_ifconf(struct net *net, struct ifconf *, int);
 int dev_ethtool(struct net *net, struct ifreq *);
 unsigned int dev_get_flags(const struct net_device *);
-int __dev_change_flags(struct net_device *, unsigned int flags);
+int __dev_change_flags(struct net_device *dev, unsigned int flags,
+                      struct netlink_ext_ack *extack);
 int dev_change_flags(struct net_device *dev, unsigned int flags,
                     struct netlink_ext_ack *extack);
 void __dev_notify_flags(struct net_device *, unsigned int old_flags,

diff --git a/net/core/dev.c b/net/core/dev.c
index 8bba6f9..b37e320 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -7498,7 +7498,8 @@ unsigned int dev_get_flags(const struct net_device *dev)
 }
 EXPORT_SYMBOL(dev_get_flags);
 
-int __dev_change_flags(struct net_device *dev, unsigned int flags)
+int __dev_change_flags(struct net_device *dev, unsigned int flags,
+                      struct netlink_ext_ack *extack)
 {
        unsigned int old_flags = dev->flags;
        int ret;
@@ -7606,7 +7607,7 @@ int dev_change_flags(struct net_device *dev, unsigned int flags,
        int ret;
        unsigned int changes, old_flags = dev->flags, old_gflags = dev->gflags;
 
-       ret = __dev_change_flags(dev, flags);
+       ret = __dev_change_flags(dev, flags, extack);
        if (ret < 0)
                return ret;
 

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 4c9e4e1..91a0f74 100644 (file)
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2871,7 +2871,8 @@ int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
 
        old_flags = dev->flags;
        if (ifm && (ifm->ifi_flags || ifm->ifi_change)) {
-               err = __dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm));
+               err = __dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm),
+                                        NULL);
                if (err < 0)
                        return err;
        }