The patch below does not apply to the 4.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 9c395170a559d3b23dad100b01fc4a89d661c698 Mon Sep 17 00:00:00 2001
From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Date: Fri, 24 Jul 2015 12:11:46 -0700
Subject: [PATCH] target: REPORT LUNS should return LUN 0 even for dynamic ACLs
If an initiator doesn't have any real LUNs assigned, we should report
LUN 0 and a LUN list length of 1. Some versions of Solaris at least
go beserk if we report a LUN list length of 0.
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v3.1+
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index b5ba1ec3c354..556ea1b2cdd8 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -1221,11 +1221,9 @@ sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd)
* coming via a target_core_mod PASSTHROUGH op, and not through
* a $FABRIC_MOD. In that case, report LUN=0 only.
*/
- if (!sess) {
- int_to_scsilun(0, (struct scsi_lun *)&buf[offset]);
- lun_count = 1;
+ if (!sess)
goto done;
- }
+
nacl = sess->se_node_acl;
rcu_read_lock();
@@ -1248,6 +1246,14 @@ sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd)
* See SPC3 r07, page 159.
*/
done:
+ /*
+ * If no LUNs are accessible, report virtual LUN 0.
+ */
+ if (lun_count == 0) {
+ int_to_scsilun(0, (struct scsi_lun *)&buf[offset]);
+ lun_count = 1;
+ }
+
lun_count *= 8;
buf[0] = ((lun_count >> 24) & 0xff);
buf[1] = ((lun_count >> 16) & 0xff);
--
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