tree de53c88cf94f52431f5fb662043c5c2dc15a7d90
parent 952f72a8ceee3996ef8476a2f05ece1627080c20
author Alexander Duyck <alexander.h.duyck@intel.com> 1256658687 +0000
committer David S. Miller <davem@davemloft.net> 1256718024 -0700

igb: change the head and tail offsets into pointers

Since we are writting to the head/tail pointers frequently we might as well
save ourselves some processing time by converting the head and tail offsets
directly to pointers.  This will shave a few cycles off the rx/tx path and
allows us to move one step closer to the rings being a bit more independant of
each other.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>