It is not valid to enable scatter/gather without hardware checksum support
of some kind. (akpm: applies only to the old boomerang cards).
Signed-off-by: NStephen Hemminger <shemminger@osdl.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>