On Fri, Jul 13, 2018 at 04:06:02PM +0800, Ming Lei wrote: > Usually SCSI supports runtime PM, so pass BLK_MQ_F_SUPPORT_RPM to blk-mq > core for enabling block runtime PM. I still think enabling this unconditionally for any SCSI device was a mistake, and it is even more so for blk-mq. Please only opt in for ufs, ATA first, adding others if wanted by maintainers.