If the netdevice is within a container and communicates externally
through network technologies like VXLAN, we won't be able to find
routing information in the init_net namespace. To address this issue,
we need to add a struct net parameter to the smc_ib_find_route function.
This allow us to locate the routing information within the corresponding
net namespace, ensuring the correct completion of the SMC CLC interaction.
Signed-off-by: Albert Huang <huangjie.albert@xxxxxxxxxxxxx>
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