BMC/Intel-BMC/linux.git/drivers/net/net_failover.c, branch dev-4.18Intel OpenBMC Linux kernel source tree (mirror)https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev-4.182018-11-13T19:12:25+00:00failover: Add missing check to validate 'slave_dev' in net_failover_slave_unregister2018-11-13T19:12:25+00:00YueHaibingyuehaibing@huawei.com2018-09-04T02:56:26+00:00urn:sha1:baef398e5deaf27dfa57f9acfbdc571456210d33
[ Upstream commit 9e7e6cabf371cc008cb2244a04c012b516753693 ]
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/net_failover.c: In function 'net_failover_slave_unregister':
drivers/net/net_failover.c:598:35: warning:
variable 'primary_dev' set but not used [-Wunused-but-set-variable]
There should check the validity of 'slave_dev'.
Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net: net_failover: fix typo in net_failover_slave_register()2018-06-19T22:56:44+00:00Liran Alonliran.alon@oracle.com2018-06-18T12:04:05+00:00urn:sha1:e5223438280d76ef782592cf643e09441140d14c
Sync both unicast and multicast lists instead of unicast twice.
Fixes: cfc80d9a116 ("net: Introduce net_failover driver")
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net_failover: Use netdev_features_t instead of u322018-06-04T21:30:04+00:00Dan Carpenterdan.carpenter@oracle.com2018-06-04T14:43:21+00:00urn:sha1:a746407af158e0c9a5f1078a3b3de11b0c77cf03
The features mask needs to be a netdev_features_t (u64) because a u32
is not big enough.
Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: Introduce net_failover driver2018-05-29T02:59:54+00:00Sridhar Samudralasridhar.samudrala@intel.com2018-05-24T16:55:15+00:00urn:sha1:cfc80d9a11635404a40199a1c9471c96890f3f74
The net_failover driver provides an automated failover mechanism via APIs
to create and destroy a failover master netdev and manages a primary and
standby slave netdevs that get registered via the generic failover
infrastructure.
The failover netdev acts a master device and controls 2 slave devices. The
original paravirtual interface gets registered as 'standby' slave netdev and
a passthru/vf device with the same MAC gets registered as 'primary' slave
netdev. Both 'standby' and 'failover' netdevs are associated with the same
'pci' device. The user accesses the network interface via 'failover' netdev.
The 'failover' netdev chooses 'primary' netdev as default for transmits when
it is available with link up and running.
This can be used by paravirtual drivers to enable an alternate low latency
datapath. It also enables hypervisor controlled live migration of a VM with
direct attached VF by failing over to the paravirtual datapath when the VF
is unplugged.
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>