3.19.8-ckt7 -stable review patch. If anyone has any objections, please let me
know.
------------------
From: Roland Dreier <rol...@purestorage.com>
commit 9c395170a559d3b23dad100b01fc4a89d661c698 upstream.
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 <rol...@purestorage.com>
Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
drivers/target/target_core_spc.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 4c71657..0bac24f 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -1238,11 +1238,8 @@ 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;
- }
spin_lock_irq(&sess->se_node_acl->device_list_lock);
for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
@@ -1267,6 +1264,14 @@ 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);
--
1.9.1
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