On Tue, Apr 07, 2020 at 04:00:10PM +0200, Hannes Reinecke wrote: > My concern is this: > > struct scsi_device *scsi_get_host_dev(struct Scsi_Host *shost) > { > [ .. ] > starget = scsi_alloc_target(&shost->shost_gendev, 0, shost->this_id); > [ .. ] > > and we have typically: > > drivers/scsi/hisi_sas/hisi_sas_v3_hw.c: .this_id = -1, > > It's _very_ uncommon to have a negative number as the SCSI target device; in > fact, it _is_ an unsigned int already. > > But alright, I'll give it a go; let's see what I'll end up with. But this shouldn't be exposed anywhere. And I prefer that over having magic requests/scsi_cmnd that do not have a valid ->device pointer.