[PATCH 3/3] nvme: Convert NVMe errors to PT_STS errors

[Christoph Hellwig]

On Wed, Nov 09, 2022 at 11:20:07AM -0600, Mike Christie wrote:
> >> +	case NVME_SC_BAD_ATTRIBUTES:
> >> +	case NVME_SC_INVALID_OPCODE:
> >> +	case NVME_SC_INVALID_FIELD:
> >> +	case NVME_SC_INVALID_NS:
> >> +		sts = PR_STS_OP_INVALID;
> >> +		break;
> > 
> > Second thoughts on these: shouldn't we just return negative Linux
> > errnos here?
> 
> I wasn't sure. I might have over thought it.
> 
> I added the PR_STS error codes for those cases so a user could
> distinguish if the command was sent to the device and it
> reported it didn't support the command or the device determined it
> had an invalid field set.

But does it matter if the device or the kernel doesn't support
them?  The result for the users is very much the same.