cvs commit: src/sys/net if_vlan.c

[Qing Li]

> 
> Removing the "dead" assignment to evl->evl_encap_proto above and
> reducing the bcopy window by 2 bytes here is a nano-optimization.
> Which is worse, it smuggles hidden dot1q details in this otherwise
> encapsulation-neutral block of code.  E.g., I could use the former
> code for both dot1q and ISL privately by just redefining
> ETHER_VLAN_ENCAP_LEN.
> 

   You are right.

>
> Grand total:  I would greately appreciate if you backed out this
> change and then fixed the tag value of -1 alone, but let me review
> that first.  Thanks!
> 

   Okay.

   Thanks,

   -- Qing