linux-kernel - Re: [stable] [PATCH] hpsa: fix physical device lun and target numbering problem

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Date:	Tue, 9 Aug 2011 09:13:15 -0700
From:	Greg KH <greg@...ah.com>
To:	"Stephen M. Cameron" <scameron@...rdog.cce.hp.com>
Cc:	james.bottomley@...senpartnership.com, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org, stable@...nel.org,
	stephenmcameron@...il.com, thenzl@...hat.com,
	akpm@...ux-foundation.org, mikem@...rdog.cce.hp.com
Subject: Re: [stable] [PATCH] hpsa: fix physical device lun and target
 numbering problem

On Tue, Aug 09, 2011 at 08:18:01AM -0500, Stephen M. Cameron wrote:
> From: Stephen M. Cameron <scameron@...rdog.cce.hp.com>
> 
> If a physical device exposed to the OS by hpsa
> is replaced (e.g. one hot plug tape drive is replaced
> by another, or a tape drive is placed into "OBDR" mode
> in which it acts like a CD-ROM device) and a rescan is
> initiated, the replaced device will be added to the
> SCSI midlayer with target and lun numbers set to -1.
> After that, a panic is likely to ensue.  When a physical
> device is replaced, the lun and target number should be
> preserved.
> 
> Signed-off-by: Stephen M. Cameron <scameron@...rdog.cce.hp.com>
> ---
>  drivers/scsi/hpsa.c |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read Documentation/stable_kernel_rules.txt
for how to do this properly.

</formletter>
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