On Fri, Jul 22, 2016 at 05:50:18AM +0800, Tom Yan wrote: > As I've mentioned in the comment/message, there is no ATA command > needed to be sent to the device, since it only toggles a bit in > dev->flags. See that there is no ata_taskfile constructed in > ata_mselect_control(). But ata_mselect_caching() contructs a tf? -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html