[SCSI] libfc: Pass lport in exch_mgr_reset

fc_exch_mgr structure is private to fc_exch.c. To export exch_mgr_reset to
transport, transport needs access to the exch manager. Change
exch_mgr_reset to use lport param which is the shared structure between
libFC and transport.

Alternatively, fc_exch_mgr definition can be moved to libfc.h so that lport
can be accessed from mp*.

Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

3 files changed, 6 insertions, 5 deletions

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 66db08a5f27..a09416fd843 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1480,10 +1480,11 @@ static void fc_exch_reset(struct fc_exch *ep)
  * If sid is non-zero, reset only exchanges we source from that FID.
  * If did is non-zero, reset only exchanges destined to that FID.
  */
-void fc_exch_mgr_reset(struct fc_exch_mgr *mp, u32 sid, u32 did)
+void fc_exch_mgr_reset(struct fc_lport *lp, u32 sid, u32 did)
 {
 	struct fc_exch *ep;
 	struct fc_exch *next;
+	struct fc_exch_mgr *mp = lp->emp;
 
 	spin_lock_bh(&mp->em_lock);
 restart:
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 0b9bdb1fb80..5db223ce3b2 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -663,7 +663,7 @@ int fc_lport_destroy(struct fc_lport *lport)
 {
 	lport->tt.frame_send = fc_frame_drop;
 	lport->tt.fcp_abort_io(lport);
-	lport->tt.exch_mgr_reset(lport->emp, 0, 0);
+	lport->tt.exch_mgr_reset(lport, 0, 0);
 	return 0;
 }
 EXPORT_SYMBOL(fc_lport_destroy);
@@ -973,7 +973,7 @@ static void fc_lport_enter_reset(struct fc_lport *lport)
 
 	lport->tt.disc_stop(lport);
 
-	lport->tt.exch_mgr_reset(lport->emp, 0, 0);
+	lport->tt.exch_mgr_reset(lport, 0, 0);
 	fc_host_fabric_name(lport->host) = 0;
 	fc_host_port_id(lport->host) = 0;
 
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index e780d8caf70..dec7bae0e56 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -1285,7 +1285,7 @@ void fc_rport_terminate_io(struct fc_rport *rport)
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
 	struct fc_lport *lport = rdata->local_port;
 
-	lport->tt.exch_mgr_reset(lport->emp, 0, rport->port_id);
-	lport->tt.exch_mgr_reset(lport->emp, rport->port_id, 0);
+	lport->tt.exch_mgr_reset(lport, 0, rport->port_id);
+	lport->tt.exch_mgr_reset(lport, rport->port_id, 0);
 }
 EXPORT_SYMBOL(fc_rport_terminate_io);