From: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Date: Mon, 27 Apr 2020 17:08:20 +0200
Subject: scsi: target: Add missing emulate_pr attribute to passthrough
 backends
Git-commit: 9299941716a3082e5335fe751ce433cdb62b26d0
Patch-mainline: v5.8-rc1
References: bsc#1177393

In commit b49d6f788530 ("scsi: target: add emulate_pr backstore attr to
toggle PR support") the new attribute emulate_pr was added.

passthrough_parse_cdb() uses the attribute's value to distinguish whether
reservation commands should be rejected or not.  But the new attribute was
not added to passthrough_attrib_attrs, so in pscsi and tcmu - the users of
passthrough_parse_cdb() - the attribute is not available to change parser's
behavior.

Link: https://lore.kernel.org/r/20200427150823.15350-2-bstroesser@ts.fujitsu.com
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Lee Duncan <lduncan@suse.com>
---
 drivers/target/target_core_configfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index ff82b21fdcce..d8589bb39c53 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -1203,6 +1203,7 @@ struct configfs_attribute *passthrough_attrib_attrs[] = {
 	&attr_hw_block_size,
 	&attr_hw_max_sectors,
 	&attr_hw_queue_depth,
+	&attr_emulate_pr,
 	&attr_alua_support,
 	&attr_pgr_support,
 	NULL,