I think we must define a term for "lwip context packing" :) That
phrase on wiki may be corrected to "you may not need whole structure
alignment" instead of "you may not need packing", because structure packing is
mostly refer to structure members packing (removing pads) which is
essential for lwip.
It seems to me that it would be best to delete the paragraph in question
from the wiki page. The paragraphs that follow it provide the general
explanation. Users *must* figure this out for their system, and there
is no truly "common case".
Marty
__
"Stephane Lesage" wrote:
> I am the author.
> And somebody (Simon I think) added:
I think I remember something like that :-)
> "In any case, make sure the system runs stable when chosing a structure
> packing setting different to 1!"
> [..]
> And I guarantee you it's working, so I hold to my stat
> > Whoever wrote that (I'm too lazy to check the wiki history right
> > now) thought (or maybe even checked) that inside protocol headers,
> all
> > members are aligned, so when the start of a protocol header is
> > aligned, you wouldn't need packing.
>
> Structure alignment and packing of intern
