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| author |   Stefan Hajnoczi <stefanha@gmail.com> | 2013-01-21 01:17:22 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-01-21 14:07:44 -0500 |
| commit | fa0879e37b59e8e3f130a30a9e6fa515717c5bdd (patch) | |
| tree | 04a7a3b6464b582a86d8193692a1588bf7049e53 /include/linux/etherdevice.h | |
| parent | move virtnet_send_command() above virtnet_set_mac_address() (diff) | |
| download | linux-dev-fa0879e37b59e8e3f130a30a9e6fa515717c5bdd.tar.xz linux-dev-fa0879e37b59e8e3f130a30a9e6fa515717c5bdd.zip | |
net: split eth_mac_addr for better error handling
When we set mac address, software mac address in system and hardware mac
address all need to be updated. Current eth_mac_addr() doesn't allow
callers to implement error handling nicely.
This patch split eth_mac_addr() to prepare part and real commit part,
then we can prepare first, and try to change hardware address, then do
the real commit if hardware address is set successfully.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/etherdevice.h')
| -rw-r--r-- | include/linux/etherdevice.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 1a43e1b4f7ad..c623861964e4 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -40,6 +40,8 @@ extern int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh, extern void eth_header_cache_update(struct hh_cache *hh, const struct net_device *dev, const unsigned char *haddr); +extern int eth_prepare_mac_addr_change(struct net_device *dev, void *p); +extern void eth_commit_mac_addr_change(struct net_device *dev, void *p); extern int eth_mac_addr(struct net_device *dev, void *p); extern int eth_change_mtu(struct net_device *dev, int new_mtu); extern int eth_validate_addr(struct net_device *dev); |