From: Bjørn Mork <bjorn@xxxxxxx> Date: Wed, 18 Sep 2013 17:52:42 +0200 > Ming Lei <ming.lei@xxxxxxxxxxxxx> writes: > >> There is no reason to forbid DMA SG for one driver which requires >> padding, right? > > Yes there is: Added complexity for everybody, based on a combination of > features which just does not make any sense. > > No modern device should need the padding. No old device will be able to > use the SG feature as implemented. You only enable it on USB3, don't > you? If this feature is restricted to USB3 capable devices, then it most > certainly can be restricted to ZLP capable devices with absolutely no > difference in the resulting set of supported devices. I completely agree. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
