linux-kernel - Re: [Xen-devel] [PATCH v2 2/2] xen/scsiback: avoid warnings when adding multiple LUNs to a domain

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Message-ID: <56B8C65C.1060901@citrix.com>
Date:	Mon, 8 Feb 2016 16:46:20 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	Juergen Gross <jgross@...e.com>, <linux-kernel@...r.kernel.org>,
	<xen-devel@...ts.xen.org>, <konrad.wilk@...cle.com>,
	<david.vrabel@...rix.com>, <boris.ostrovsky@...cle.com>
CC:	<stable@...r.kernel.org>
Subject: Re: [Xen-devel] [PATCH v2 2/2] xen/scsiback: avoid warnings when
 adding multiple LUNs to a domain

On 08/02/16 14:30, Juergen Gross wrote:
> When adding more than one LUN to a frontend a warning for a failed
> assignment is issued in dom0 for each already existing LUN. Avoid this
> warning by checking for a LUN already existing when existence is
> allowed (scsiback_do_add_lun() called with try == 1).
> 
> As the LUN existence check is needed now for a third time, factor it
> out into a function. This in turn leads to a more or less complete
> rewrite of scsiback_del_translation_entry() which will now return a
> proper error code in case of failure.
> 
> Signed-off-by: Juergen Gross <jgross@...e.com>
> Cc: stable@...r.kernel.org

Avoiding warnings doesn't seem like a viable candidate for stable.  Is
there more to this patch than the description suggests?

David