linux-kernel - Re: [PATCH 5/6] ibmvscsi: Remove unsupported host config MAD and sysfs interface

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Date:	Thu, 4 Feb 2016 09:03:17 +0100
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	Tyrel Datwyler <tyreld@...ux.vnet.ibm.com>
Cc:	JBottomley@...n.com, martin.petersen@...cle.com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, nfont@...ux.vnet.ibm.com,
	brking@...ux.vnet.ibm.com, hare@...e.de
Subject: Re: [PATCH 5/6] ibmvscsi: Remove unsupported host config MAD and
 sysfs interface

On Wed, Feb 03, 2016 at 05:28:33PM -0600, Tyrel Datwyler wrote:
> A VIOSRP_HOST_CONFIG_TYPE management datagram (MAD) has existed in
> the code for some time. From what information I've gathered from
> Brian King this was likely implemented on the host side in a SLES 9
> based VIOS, which is no longer supported anywhere. Further, it is
> not defined in PAPR or supported by any AIX based VIOS.
> 
> Treating as bit rot and removing the sysfs interface and associated
> host config code accordingly.

Doesn't removing a sysfs interface potentially break userspace code?

-- 
Johannes Thumshirn                                          Storage
jthumshirn@...e.de                                +49 911 74053 689
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