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From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: linux1394-devel@lists.sourceforge.net,
	linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: [PATCH] ieee1394: sbp2: fix rescan-scsi-bus
Date: Sun, 17 Feb 2008 10:03:05 -0600	[thread overview]
Message-ID: <1203264186.3082.33.camel@localhost.localdomain> (raw)
In-Reply-To: <tkrat.e66f8acfe9d89925@s5r6.in-berlin.de>


On Sun, 2008-02-17 at 14:57 +0100, Stefan Richter wrote:
> rescan-scsi-bus used to add SBP-2 targets which weren't there.
> 
> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
> ---
>  drivers/ieee1394/sbp2.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> Index: linux/drivers/ieee1394/sbp2.c
> ===================================================================
> --- linux.orig/drivers/ieee1394/sbp2.c
> +++ linux/drivers/ieee1394/sbp2.c
> @@ -1974,6 +1974,9 @@ static int sbp2scsi_slave_alloc(struct s
>  {
>  	struct sbp2_lu *lu = (struct sbp2_lu *)sdev->host->hostdata[0];
>  
> +	if (sdev->lun != 0 || sdev->id != lu->ud->id || sdev->channel != 0)
> +		return -ENODEV;
> +

It's hard to know what to say about this.  The infrastructure for
scanning did move to separate scanned (old parallel and a few other)
busses from hotplug ones (which is what sbp2 is).  You really need to
look at the scan_finished and user_scan callbacks.  Unfortunately the
latter is a transport class function and how all the modern busses (FC,
SAS and the like do this).

James



  reply	other threads:[~2008-02-17 16:03 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-17 13:56 [PATCH] firewire: fw-sbp2: fix NULL pointer deref in slave_alloc Stefan Richter
2008-02-17 13:57 ` [PATCH] ieee1394: sbp2: fix rescan-scsi-bus Stefan Richter
2008-02-17 16:03   ` James Bottomley [this message]
2008-02-17 17:58     ` Stefan Richter
2008-02-17 21:08       ` Stefan Richter
2008-02-17 17:44 ` [PATCH] firewire: fw-sbp2: fix NULL pointer deref in slave_alloc Stefan Richter
2008-02-17 18:17   ` [PATCH] firewire: fw-sbp2: fix NULL pointer deref in scsi_remove_device Stefan Richter
2008-02-19  8:05     ` [PATCH update] " Stefan Richter

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