On Tue, 2 Jul 2013, Ming Lei wrote: > The patch does the below improvement: > > - think QH_STATE_COMPLETING as unlinking state since all URBs on the > endpoint should be in unlinking or unlinked when doing endpoint_disable() > > - add "WARN_ON(!list_empty(&qh->qtd_list));" if qh->qh_state is > QH_STATE_LINKED because there shouldn't be any active transfer in qh > > - when qh->qh_state is QH_STATE_LINKED, the QH(async or periodic) > should be in its corresponding list, so the search through the async > list isn't necessary. > > - unlink periodic QH to speed up unlinking if the QH is in linked > state > > Basically, only the last one is related with this patchset because > the assumption of "periodic qh self-unlinks on empty" isn't true > any more when we introduce unlink-wait for periodic qh. > > Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx> Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> -- 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
