[Click] which element should add ELEMENT_MT_SAFE?

[Eddie Kohler]

> hi, clickers,
>  
> I found that a few elements don't have ELEMENT_MT_SAFE(...) at
> the end of .cc file. Elements like CheckIPHeader don't have the 

The thing you missed is that no program has ever used the ELEMENT_MT_SAFE()
declaration for any purpose, and there are no immediate plans to use it in
any way, so we're not too careful about it :)

Eddie