Re: proposed optimization for network drivers

[Don Cohen]

David S. Miller writes:
 >    From: [e-mail] (Don Cohen)
 >    Date: Fri, 18 Apr 2003 08:37:01 -0700
 > 
 >    For instance, why does every driver have to call
 >    eth_type_trans?  Could that be delayed for netif_rx ?
 > 
 > Silly example.  Ethernet specific routines do not belong in
 > device generic netif_rx().

Ok, fair enough.
How about the larger point that it's reasonable to check early whether
the labor you're about to expend will be wasted and the suggestion
that this be encapsulated in a function that all drivers can share?