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| author |   Petr Machata <petrm@mellanox.com> | 2018-12-13 11:54:33 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-12-13 18:41:38 -0800 |
| commit | 1570415f0810fce085066fb39827397452c3965a (patch) | |
| tree | 21f366cec99b5ce72cc4851476a6c7ee95123312 /net/core/dev.c | |
| parent | net: dev: Add extack argument to dev_set_mac_address() (diff) | |
| download | linux-dev-1570415f0810fce085066fb39827397452c3965a.tar.xz linux-dev-1570415f0810fce085066fb39827397452c3965a.zip | |
net: dev: Add NETDEV_PRE_CHANGEADDR
The NETDEV_CHANGEADDR notification is emitted after a device address
changes. Extending this message to allow vetoing is certainly possible,
but several other notification types have instead adopted a simple
two-stage approach: first a "pre" notification is sent to make sure all
interested parties are OK with a change that's about to be done. Then
the change is done, and afterwards a "post" notification is sent.
This dual approach is easier to use: when the change is vetoed, nothing
has changed yet, and it's therefore unnecessary to roll anything back.
Therefore adopt it for NETDEV_CHANGEADDR as well.
To that end, add NETDEV_PRE_CHANGEADDR and an info structure to go along
with it.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 7250a3a73fa4..01497b7d1bdf 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1589,6 +1589,7 @@ const char *netdev_cmd_to_name(enum netdev_cmd cmd) N(UDP_TUNNEL_DROP_INFO) N(CHANGE_TX_QUEUE_LEN) N(CVLAN_FILTER_PUSH_INFO) N(CVLAN_FILTER_DROP_INFO) N(SVLAN_FILTER_PUSH_INFO) N(SVLAN_FILTER_DROP_INFO) + N(PRE_CHANGEADDR) } #undef N return "UNKNOWN_NETDEV_EVENT"; |