[riot-notifications] [RIOT-OS/RIOT] gnrc/netif: add gnrc_netif_ipv6_wait_for_prefix() (#16824)

benpicco notifications at github.com
Tue Sep 7 18:01:50 CEST 2021

@benpicco commented on this pull request.


> > I could also use VLA instead fearful
> https://en.wikipedia.org/wiki/Vla?

yummy, but I meant 


They should generally be avoided because of their unpredictable nature and no way to check if stack space was exhausted.
However, this might actually be a valid use case: `msg_bus_entry_t` is only 12 byte and the number of netifs is also small, so it's unlikely that this will overflow the stack.

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