Avoid that SCSI scanning triggers creation of targets with non-zero
channel or non-zero id.
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Cc: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Cc: David Dillow <dillowda@xxxxxxxx>
Cc: <stable@xxxxxxxxxx>
---
drivers/infiniband/ulp/srp/ib_srp.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index ee165fd..de4fd32 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -110,6 +110,11 @@ static const char *srp_target_info(struct Scsi_Host *host)
return host_to_target(host)->target_name;
}
+static int srp_target_alloc(struct scsi_target *starget)
+{
+ return starget->channel == 0 && starget->id == 0 ? 0 : -ENODEV;
+}
+
static int srp_target_is_topspin(struct srp_target_port *target)
{
static const u8 topspin_oui[3] = { 0x00, 0x05, 0xad };
@@ -1836,6 +1841,7 @@ static struct scsi_host_template srp_template = {
.name = "InfiniBand SRP initiator",
.proc_name = DRV_NAME,
.info = srp_target_info,
+ .target_alloc = srp_target_alloc,
.queuecommand = srp_queuecommand,
.eh_abort_handler = srp_abort,
.eh_device_reset_handler = srp_reset_device,
--
1.7.3.4
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