d6393048d3
A similar fix should be applied to vmxnet, ixgbe, igb, i40e. (some of them previously reported by Michael Tuexen) Drivers using if_transmit are correct, and so are most of the other drivers that reassing if_transmit. Among other things, this bug causes panics when using netmap emulation on top of generic drivers. Approved by: bryanv MFC after: 3 days