From 448ba904160f9d8f69217c28a1692cee5afbff88 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Tue, 15 Apr 2014 14:13:12 -0700
Subject: [PATCH] target: Allow non-supporting backends to set pi_prot_type to
 0

Userspace tools assume if a value is read from configfs, it is valid
and will not cause an error if the same value is written back. The only
valid value for pi_prot_type for backends not supporting DIF is 0, so allow
this particular value to be set without returning an error.

Reported-by: Krzysztof Chojnowski <frirajder@gmail.com>
Signed-off-by: Andy Grover <agrover@redhat.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
Reading git-format-patch failed