[lwip-members] [patch #8683] Addresses configured with router advertisment are never forgot

[Simon Goldschmidt]

Follow-up Comment #7, patch #8683 (project lwip):

> About NETIF_STATUS_CALLBACK, I'm not 100% sure how the API should work in
this case. 

Isn't this part of what task #13517 wants to have fixed? For IPv4, the netif
status callback is called when the address changes (e.g. AutoIP or DHCP have
acquired an address), so I guess IPv6 should call it too when the address
change changes.

Another question would be how you would know exactly *what* has changed, but I
guess a "changed" callback is good enough for now.

However, in contrast to the patch, I would make netif_ip6_addr_set_state a
*function* in netif.c. (Reading the code IAR produces for Cortex-M3, I don't
think it's larger....)

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