From 10762e80489e73e2d52bf78e0869f253f42821bd Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Sun, 23 Feb 2014 12:52:44 +0000
Subject: [PATCH] target/sbc: Fix sbc_dif_copy_prot addr offset bug

This patch fixes a bug in sbc_dif_copy_prot() where the updated addr
offset did not take into account the case where the associated
scatterlist had not been incremented.

This addresses the case where incoming protection scatterlists may
contain a length smaller than PAGE_SIZE across multiple entires,
when the target protection scatterlists are always being explicitly
filled up to PAGE_SIZE before adding another entry.

Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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