Re: [PATCH 4/4] scsi: ncr53c8xx: remove ScsiResult macro

From: Johannes Thumshirn
Date: Mon Jul 09 2018 - 03:15:37 EST


On Fri, Jul 06, 2018 at 05:05:19PM +0000, Bart Van Assche wrote:
> On Fri, 2018-07-06 at 10:09 +0200, Johannes Thumshirn wrote:
> > On Thu, Jul 05, 2018 at 05:04:05PM +0000, Bart Van Assche wrote:
> > > On Thu, 2018-07-05 at 13:01 +0200, Johannes Thumshirn wrote:
> > > > - cmd->result = ScsiResult(DID_OK, S_CHECK_COND);
> > > > + cmd->result = DID_OK << 16 | S_CHECK_COND;
> > >
> > > Since DID_OK == 0, do we really need "DID_OK << 16 |" here?
> >
> > Please see my answers to the other patches on this.
>
> No matter what the next step is, you will have to deal with code that looks
> very similar to what I proposed. An example from libata:
>
> else if (qc->flags & ATA_QCFLAG_SENSE_VALID)
> cmd->result = SAM_STAT_CHECK_CONDITION;

OK, I'll take remove the "| 0" parts.

>
> BTW, in drivers/scsi/sym53c8xx_2/sym_defs.h there are definitions for synonyms
> of standard SCSI constants. I wouldn't mind if these synonyms would be removed:
>
> #define S_GOOD SAM_STAT_GOOD
> #define S_CHECK_COND SAM_STAT_CHECK_CONDITION
> #define S_COND_MET SAM_STAT_CONDITION_MET
> #define S_BUSY SAM_STAT_BUSY
> #define S_INT SAM_STAT_INTERMEDIATE
> #define S_INT_COND_MET SAM_STAT_INTERMEDIATE_CONDITION_MET
> #define S_CONFLICT SAM_STAT_RESERVATION_CONFLICT
> #define S_TERMINATED SAM_STAT_COMMAND_TERMINATED
> #define S_QUEUE_FULL SAM_STAT_TASK_SET_FULL

Yup, saw those as well and already removed them in the next
version. Ditto for the bfa ones.

--
Johannes Thumshirn Storage
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