Re: [PATCH 4/4] ib_srpt: Convert acl lookup to modern get_initiator_node_acl usage

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On 01/08/2016 08:15 AM, Nicholas A. Bellinger wrote:
@@ -2574,24 +2558,18 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,

  	pr_debug("registering session %s\n", ch->sess_name);

-	nacl = srpt_lookup_acl(sport, ch->i_port_id);
-	if (!nacl) {
+	se_acl = core_tpg_get_initiator_node_acl(&sport->port_tpg_1, ch->sess_name);
+	if (!se_acl) {
  		pr_info("Rejected login because no ACL has been"
  			" configured yet for initiator %s.\n", ch->sess_name);
  		rej->reason = cpu_to_be32(
-			      SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED);
+				SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED);
+		transport_free_session(ch->sess);
  		goto destroy_ib;
  	}
+	ch->sess->se_node_acl = se_acl;

This is a backwards-incompatible change. Today the ib_srpt target driver accepts initiator port names with and without leading "0x". With this change the "0x" prefix becomes mandatory.

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h
index 5faad8ac..bb4fbe2 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.h
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.h
@@ -364,11 +364,9 @@ struct srpt_port {
  	u16			sm_lid;
  	u16			lid;
  	union ib_gid		gid;
-	spinlock_t		port_acl_lock;
  	struct work_struct	work;
  	struct se_portal_group	port_tpg_1;
  	struct se_wwn		port_wwn;
-	struct list_head	port_acl_list;
  	struct srpt_port_attrib port_attrib;
  };

With this patch applied the following srpt_node_acl members are no longer read: i_port_id, sport and list. Hence please remove the srpt_node_acl structure definition and use struct se_node_acl instead.

Thanks,

Bart.
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