Re: kue0 not receiving patch

[Scott Michel <scottm@xxxxxxxx>]

Matthew Dillon wrote:
>     Hmm.  That doesn't look quite right.... the mbuf is being put on the
>     ifq but then it is also being passed to NETISR_USB.   NETISR_USB
>     (usbintr() in usb/usb_ethersubr.c) takes the passed mbuf and 
>     IF_DEQUEUE's it... so far so good.  But then it *LOOPS* on the ifq
>     to get the next mbuf... but that means the same mbuf may be IF_DEQUEUE'd
>     more then once since the other mbufs on the ifq also had an ISR queued
>     for them.

This basic pattern is used by many network drivers -- the argument to 
the isr routine is effectively ignored. Sure, m gets initialized but the 
value is never actually used.