[lwip-users] Re: [lwip-members] Re: Porting lwIP to RT-Linux

[Sergio PérezAlcañiz]

Mensaje citado por: David Haas <address@hidden>:

> I have a real problem with the GPL code. We need to make sure the GPL 
> license is not added to any code in the core. 
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GPL is not applied in any core code, just in the sys_arch and in another
one that makes all initializations.
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>If there are bug fixes for 
> the core, then Sergio should enter them as bugs in Savanah 
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I think that there are no bugs, or at least as I understand what a bug
is. Is just that, when the interrupt handler of a NIC is executed in 
the same "level" then there are some weaknesses I found, I mean, sema-
phores are not enough. I found a way of stoping interrupts but without
loosing packets, so I added a sys_stop_interrupts and a sys_allow_interrupts
function to the sys_arch.
In linux, the lwip code and the NIC driver code is executed in different
levels, so no problem is caused by interrupts. That doesn't happens in
RT-Linux.
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>and if he 
> cannot submit a patch which does not add the GPL, then one of us should
> 
> make the fixes. I would be happy to do so.
> 
> Regards,
> David.
> 

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It is no that I don't want to submit a patch. I think that users that want
to try RTL-lwIP doesn't need to download RT-lwIP code and lwip code apart and
then apply a patch. I think is better to download the whole distribution.
I didn't know the problem was that you use to keep (I mean in savannah) the
arch files apart from the other (core). That wouldn't work with RTL-lwIP just
for the reasons I give above. 
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Regards.
Sergio.