Re: [lwip-devel] byte order, packing, optimizations

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Stéphane Lesage wrote:
> As we use ip_addr2 for compilers that don't support struct packing,
> it means packing is not necessary for ethernet / ARP headers.
>    
Personally, I'd like to see assertions or checks of some type if we 
remove structure packing from any structs that are exposed in headers 
(it's a different thing for structs internal to a C file).
> The proposed patch removes packing, and processes all addresses with
> u16_t accesses.
>    
The patch you attached does far more than that! And it's not clear to me 
if/why we need all that. Also, it interferes with / task #10173 
<http://savannah.nongnu.org/task/?10173>/ (Add IPCOPY and HWACOPY): 
http://savannah.nongnu.org/task/?10173

Simon