[lwip-devel] [patch #8882] Vector improvements

[Simon Goldschmidt]

Follow-up Comment #44, patch #8882 (project lwip):

As to the binary compatibility of an external struct: we don't we just compare
size and offsets of the two structs using LWIP_ASSERT? Somewhere in an init
function where it's only done once. Like 'lwip_init()'.

>  do we have an issue with passing pointer to struct netvector in the MPU
case?

I can imagine that going wrong, yes. I'm not too keen on fixing this right now
though. Letting it go wrong might get us a feedback on if it's really used
:-)

But really, I don't like the current MPU approach. What we would need to make
it usable would be a simple "copy this pointer, x bytes, to a shared location"
(and freeing it again later) instead of adding all those structs and pools.

I guess I'm OK with the rest of the patch, even if it slows down the non-multi
send part.

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