Re: [PATCH] scsi: Let scsi_execute_cmd() mark args->sshdr as invalid

[Martin K. Petersen]

John,

> @Martin, Do you have any preference for what we do now? This code
> which does not check for error and does not pre-zero sshdr is
> longstanding, so I am not sure if Juergen's change is required for for
> v6.4. I'm thinking to fix callers for v6.5 and also maybe change the
> API, as I described.

As I alluded to in the tracing thread, I'd like to see SK/ASC/ASCQ being
generally available in the scsi_cmnd results instead of all this sense
buffer and sense header micromanagement in every caller. That's a pretty
heavy lift, though.

Short term we need all callers to be fixed up. I'm not a particularly
big fan of scsi_execute_cmd() zeroing something being passed in. I
wonder if it would be worth having a DECLARE_SENSE_HEADER()?

-- 
Martin K. Petersen	Oracle Linux Engineering