linux-kernel - Re: [PATCH v2 18/29] scsi: aic7xxx: aic7xxx

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Date:   Tue, 14 Jul 2020 22:08:41 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Doug Ledford <dledford@...hat.com>
Cc:     jejb@...ux.ibm.com, martin.petersen@...cle.com,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
        Hannes Reinecke <hare@...e.com>
Subject: Re: [PATCH v2 18/29] scsi: aic7xxx: aic7xxx_osm: Remove unused
 variable 'tinfo'

On Tue, 14 Jul 2020, Doug Ledford wrote:

> On Mon, 2020-07-13 at 08:46 +0100, Lee Jones wrote:
> > Looks like none of the artifact from  ahc_fetch_transinfo() are used
> > anymore.
> > 
> > Fixes the following W=1 kernel build warning(s):
> > 
> >  drivers/scsi/aic7xxx/aic7xxx_osm.c: In function
> > ‘ahc_linux_target_alloc’:
> >  drivers/scsi/aic7xxx/aic7xxx_osm.c:567:30: warning: variable ‘tinfo’
> > set but not used [-Wunused-but-set-variable]
> >  567 | struct ahc_initiator_tinfo *tinfo;
> >  | ^~~~~
> > 
> > Cc: Hannes Reinecke <hare@...e.com>
> > Cc: "Daniel M. Eischen" <deischen@...rks.InterWorks.org>
> > Cc: Doug Ledford <dledford@...hat.com>
> 
> FWIW, I can't seem to figure out how you got mine or Dan's email
> addresses as related to this driver.  The MAINTAINERS file only lists
> Hannes.  The driver Dan and I worked on was a different driver.  It was
> named aic7xxx, but that was back in the 1990s.  It was renamed to
> aic7xxx_old so that Adaptec could contribute this driver you are
> currently patching back around 2001 or so.  And then maybe around 2010
> or something like that, the aic7xxx_old driver that Dan and I worked on
> was removed from the upstream source tree entirely.  So, just out of
> curiosity, how did you get mine and Dan's email addresses to put on the
> Cc: list for these patches?

 $ ./scripts/get_maintainer.pl --file-emails --git-min-percent 75 -f drivers/scsi/aic7xxx/aic7xxx_osm.c
  Hannes Reinecke <hare@...e.com> (maintainer:AIC7XXX / AIC79XX SCSI DRIVER,in file)
  "James E.J. Bottomley" <jejb@...ux.ibm.com> (maintainer:SCSI SUBSYSTEM)
  "Martin K. Petersen" <martin.petersen@...cle.com> (maintainer:SCSI SUBSYSTEM)
  "Daniel M. Eischen" <deischen@...rks.InterWorks.org> (in file)
  Doug Ledford <dledford@...hat.com> (in file)
  linux-scsi@...r.kernel.org (open list:AIC7XXX / AIC79XX SCSI DRIVER)
  linux-kernel@...r.kernel.org (open list)

Looks like get_maintainer.pl pulled it from the file header.

> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> > ---
> >  drivers/scsi/aic7xxx/aic7xxx_osm.c | 5 -----
> >  1 file changed, 5 deletions(-)
> > 
> > diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c
> > b/drivers/scsi/aic7xxx/aic7xxx_osm.c
> > index 2edfa0594f183..32bfe20d79cc1 100644
> > --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
> > +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
> > @@ -564,8 +564,6 @@ ahc_linux_target_alloc(struct scsi_target
> > *starget)
> >  	struct scsi_target **ahc_targp =
> > ahc_linux_target_in_softc(starget);
> >  	unsigned short scsirate;
> >  	struct ahc_devinfo devinfo;
> > -	struct ahc_initiator_tinfo *tinfo;
> > -	struct ahc_tmode_tstate *tstate;
> >  	char channel = starget->channel + 'A';
> >  	unsigned int our_id = ahc->our_id;
> >  	unsigned int target_offset;
> > @@ -612,9 +610,6 @@ ahc_linux_target_alloc(struct scsi_target
> > *starget)
> >  			spi_max_offset(starget) = 0;
> >  		spi_min_period(starget) = 
> >  			ahc_find_period(ahc, scsirate, maxsync);
> > -
> > -		tinfo = ahc_fetch_transinfo(ahc, channel, ahc->our_id,
> > -					    starget->id, &tstate);
> >  	}
> >  	ahc_compile_devinfo(&devinfo, our_id, starget->id,
> >  			    CAM_LUN_WILDCARD, channel,
> 



-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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