Re: [lwip-users] Link Up/Down Treatment

[ella]

Hi,
According to WiKi

address@hidden wrote
> your driver should call the netif_set_link_up and netif_set_link_down
> functions instead of setting the NETIF_FLAG_LINK_UP flag directly. (If you
> are using the tcpip thread, then you should call tcpip_callback with an
> argument of one of these two functions; this will protect against
> concurrent access, specifically in the ARP modules.)

So to my understanding in driver I can use tcpip_callback instead of
netifapi_netif_common. But according to the source code they are doing the
same job, posting function pointer via message queue to the tcpip_thread.





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