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scsi: fcoe: Convert timers to use timer_setup()

PATCH In review Kees Cook 2 participants 2 messages Oct 5, 2017

Subsystems (3)
SCSI FCoE subsystem (libfc, libfcoe, fcoe) Broadcom BNX2FC 10 gigabit FCoE driver
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Kees Cook

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PATCH 1/1 scsi: fcoe: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly.

Cc [email protected]
Cc "James E.J. Bottomley" <[email protected]>
Cc "Martin K. Petersen" <[email protected]>
Cc Johannes Thumshirn <[email protected]>
Cc [email protected]
Cc [email protected]
Cc Thomas Gleixner <[email protected]>
Signed-off-by Kees Cook <[email protected]>

---
This requires commit 686fef928bba ("timer: Prepare to change timer callback argument type") in v4.14-rc3, but should be otherwise stand-alone.

---
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c  | 11 +++++------
 drivers/scsi/fcoe/fcoe.c           |  2 +-
 drivers/scsi/fcoe/fcoe_transport.c |  6 ++++--
 include/scsi/libfcoe.h             |  2 +-
 4 files changed, 11 insertions(+), 10 deletions(-)
drivers/scsi/bnx2fc/bnx2fc_fcoe.c +5 -6
index 6844ba361616..e6b9de7d41ac 100644
@@ -823,7 +823,7 @@ static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 
 	skb_queue_head_init(&port->fcoe_pending_queue);
 	port->fcoe_pending_queue_active = 0;
-	setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
+	timer_setup(&port->timer, fcoe_queue_timer, 0);
 
 	fcoe_link_speed_update(lport);
 

@@ -845,9 +845,9 @@ static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 	return 0;
 }
 
-static void bnx2fc_destroy_timer(unsigned long data)
+static void bnx2fc_destroy_timer(struct timer_list *t)
 {
-	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
+	struct bnx2fc_hba *hba = from_timer(hba, t, destroy_timer);
 
 	printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 	       "Destroy compl not received!!\n");

@@ -1946,11 +1946,10 @@ static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
 {
 	if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
 		if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
-			init_timer(&hba->destroy_timer);
+			timer_setup(&hba->destroy_timer, bnx2fc_destroy_timer,
+				    0);
 			hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
 								jiffies;
-			hba->destroy_timer.function = bnx2fc_destroy_timer;
-			hba->destroy_timer.data = (unsigned long)hba;
 			add_timer(&hba->destroy_timer);
 			wait_event_interruptible(hba->destroy_wait,
 					test_bit(BNX2FC_FLAG_DESTROY_CMPL,
drivers/scsi/fcoe/fcoe.c +1 -1
index 85f9a3eba387..5cc09dce4d25 100644
@@ -754,7 +754,7 @@ static int fcoe_netdev_config(struct fc_lport *lport, struct net_device *netdev)
 
 	skb_queue_head_init(&port->fcoe_pending_queue);
 	port->fcoe_pending_queue_active = 0;
-	setup_timer(&port->timer, fcoe_queue_timer, (unsigned long)lport);
+	timer_setup(&port->timer, fcoe_queue_timer, 0);
 
 	fcoe_link_speed_update(lport);
drivers/scsi/fcoe/fcoe_transport.c +4 -2
index 375c536cbc68..1ba5f51713a3 100644
@@ -455,9 +455,11 @@ EXPORT_SYMBOL_GPL(fcoe_check_wait_queue);
  *
  * Calls fcoe_check_wait_queue on timeout
  */
-void fcoe_queue_timer(ulong lport)
+void fcoe_queue_timer(struct timer_list *t)
 {
-	fcoe_check_wait_queue((struct fc_lport *)lport, NULL);
+	struct fcoe_port *port = from_timer(port, t, timer);
+
+	fcoe_check_wait_queue(port->lport, NULL);
 }
 EXPORT_SYMBOL_GPL(fcoe_queue_timer);
include/scsi/libfcoe.h +1 -1
index 722d3264d3bf..cb8a273732cf 100644
@@ -382,7 +382,7 @@ static inline struct net_device *fcoe_get_netdev(const struct fc_lport *lport)
 
 void fcoe_clean_pending_queue(struct fc_lport *);
 void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb);
-void fcoe_queue_timer(ulong lport);
+void fcoe_queue_timer(struct timer_list *t);
 int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen,
 			   struct fcoe_percpu_s *fps);
Signature · 6 lines
2.7.4


-- 
Kees Cook
Pixel Security