[SCSI] libfc: Initialize fc_rport_identifiers inside fc_rport_create

Currently these values are initialized by the callers. This was exposed
by a later patch that adds PLOGI request support. The patch failed to
initialize the new remote port's roles and it caused problems. This patch
has the rport_create routine initialize the identifiers and then the
callers can override them with real values.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

3 files changed, 23 insertions, 34 deletions

diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index 1a699f484c85..4242894cce7c 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -137,10 +137,7 @@ static void fc_disc_recv_rscn_req(struct fc_seq *sp, struct fc_frame *fp,
                                 break;
                         }
                         dp->lp = lport;
-                        dp->ids.port_id = ntoh24(pp->rscn_fid);
-                        dp->ids.port_name = -1;
-                        dp->ids.node_name = -1;
-                        dp->ids.roles = FC_RPORT_ROLE_UNKNOWN;
+                        dp->port_id = ntoh24(pp->rscn_fid);
                         list_add_tail(&dp->peers, &disc_ports);
                         break;
                 case ELS_ADDR_FMT_AREA:
@@ -162,7 +159,7 @@ static void fc_disc_recv_rscn_req(struct fc_seq *sp, struct fc_frame *fp,
                             redisc, lport->state, disc->pending);
                 list_for_each_entry_safe(dp, next, &disc_ports, peers) {
                         list_del(&dp->peers);
-                        rdata = lport->tt.rport_lookup(lport, dp->ids.port_id);
+                        rdata = lport->tt.rport_lookup(lport, dp->port_id);
                         if (rdata) {
                                 lport->tt.rport_logoff(rdata);
                         }
@@ -435,15 +432,14 @@ static int fc_disc_gpn_ft_parse(struct fc_disc *disc, void *buf, size_t len)
         while (plen >= sizeof(*np)) {
                 ids.port_id = ntoh24(np->fp_fid);
                 ids.port_name = ntohll(np->fp_wwpn);
-                ids.node_name = -1;
-                ids.roles = FC_RPORT_ROLE_UNKNOWN;
 
                 if (ids.port_id != fc_host_port_id(lport->host) &&
                     ids.port_name != lport->wwpn) {
-                        rdata = lport->tt.rport_create(lport, &ids);
-                        if (rdata)
+                        rdata = lport->tt.rport_create(lport, ids.port_id);
+                        if (rdata) {
+                                rdata->ids.port_name = ids.port_name;
                                 rdata->disc_id = disc->disc_id;
-                        else {
+                        } else {
                                 printk(KERN_WARNING "libfc: Failed to allocate "
                                        "memory for the newly discovered port "
                                        "(%6x)\n", ids.port_id);
@@ -580,10 +576,10 @@ static void fc_disc_single(struct fc_disc *disc, struct fc_disc_port *dp)
 
         lport = disc->lport;
 
-        if (dp->ids.port_id == fc_host_port_id(lport->host))
+        if (dp->port_id == fc_host_port_id(lport->host))
                 goto out;
 
-        rdata = lport->tt.rport_create(lport, &dp->ids);
+        rdata = lport->tt.rport_create(lport, dp->port_id);
         if (rdata) {
                 rdata->disc_id = disc->disc_id;
                 kfree(dp);
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 7000df573691..caf68240bddf 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -198,17 +198,12 @@ static void fc_lport_ptp_setup(struct fc_lport *lport,
                                u32 remote_fid, u64 remote_wwpn,
                                u64 remote_wwnn)
 {
-        struct fc_rport_identifiers ids;
-
-        ids.port_id = remote_fid;
-        ids.port_name = remote_wwpn;
-        ids.node_name = remote_wwnn;
-        ids.roles = FC_RPORT_ROLE_UNKNOWN;
-
         mutex_lock(&lport->disc.disc_mutex);
         if (lport->ptp_rp)
                 lport->tt.rport_logoff(lport->ptp_rp);
-        lport->ptp_rp = lport->tt.rport_create(lport, &ids);
+        lport->ptp_rp = lport->tt.rport_create(lport, remote_fid);
+        lport->ptp_rp->ids.port_name = remote_wwpn;
+        lport->ptp_rp->ids.node_name = remote_wwnn;
         mutex_unlock(&lport->disc.disc_mutex);
 
         lport->tt.rport_login(lport->ptp_rp);
@@ -1287,12 +1282,6 @@ static struct fc_rport_operations fc_lport_rport_ops = {
 static void fc_lport_enter_dns(struct fc_lport *lport)
 {
         struct fc_rport_priv *rdata;
-        struct fc_rport_identifiers ids;
-
-        ids.port_id = FC_FID_DIR_SERV;
-        ids.port_name = -1;
-        ids.node_name = -1;
-        ids.roles = FC_RPORT_ROLE_UNKNOWN;
 
         FC_LPORT_DBG(lport, "Entered DNS state from %s state\n",
                      fc_lport_state(lport));
@@ -1300,7 +1289,7 @@ static void fc_lport_enter_dns(struct fc_lport *lport)
         fc_lport_state_enter(lport, LPORT_ST_DNS);
 
         mutex_lock(&lport->disc.disc_mutex);
-        rdata = lport->tt.rport_create(lport, &ids);
+        rdata = lport->tt.rport_create(lport, FC_FID_DIR_SERV);
         mutex_unlock(&lport->disc.disc_mutex);
         if (!rdata)
                 goto err;
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 99ac056293f5..c667be879be6 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -104,18 +104,18 @@ static struct fc_rport_priv *fc_rport_lookup(const struct fc_lport *lport,
 }
 
 /**
- * fc_rport_create() - create remote port in INIT state.
- * @lport: local port.
- * @ids: remote port identifiers.
+ * fc_rport_create() - Create a new remote port
+ * @lport:   The local port that the new remote port is for
+ * @port_id: The port ID for the new remote port
  *
  * Locking note:  must be called with the disc_mutex held.
  */
 static struct fc_rport_priv *fc_rport_create(struct fc_lport *lport,
-                                             struct fc_rport_identifiers *ids)
+                                             u32 port_id)
 {
         struct fc_rport_priv *rdata;
 
-        rdata = lport->tt.rport_lookup(lport, ids->port_id);
+        rdata = lport->tt.rport_lookup(lport, port_id);
         if (rdata)
                 return rdata;
 
@@ -123,7 +123,11 @@ static struct fc_rport_priv *fc_rport_create(struct fc_lport *lport,
         if (!rdata)
                 return NULL;
 
-        rdata->ids = *ids;
+        rdata->ids.node_name = -1;
+        rdata->ids.port_name = -1;
+        rdata->ids.port_id = port_id;
+        rdata->ids.roles = FC_RPORT_ROLE_UNKNOWN;
+
         kref_init(&rdata->kref);
         mutex_init(&rdata->rp_mutex);
         rdata->local_port = lport;
@@ -135,7 +139,7 @@ static struct fc_rport_priv *fc_rport_create(struct fc_lport *lport,
         rdata->maxframe_size = FC_MIN_MAX_PAYLOAD;
         INIT_DELAYED_WORK(&rdata->retry_work, fc_rport_timeout);
         INIT_WORK(&rdata->event_work, fc_rport_work);
-        if (ids->port_id != FC_FID_DIR_SERV)
+        if (port_id != FC_FID_DIR_SERV)
                 list_add(&rdata->peers, &lport->disc.rports);
         return rdata;
 }