[PATCH] pciehp: reduce debug message verbosity

Reduce the number of debug messages generated if pciehp debug is
enabled. I tried to restrict this to removing debug messages that
are either early-driver-debug type messages, or print information
that can be inferred through other debug prints.
Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/pci/hotplug/pciehp.h

@@ -207,12 +207,9 @@ static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
 
 	p_slot = ctrl->slot;
 
-	dbg("p_slot = %p\n", p_slot);
-
 	while (p_slot && (p_slot->device != device)) {
 		tmp_slot = p_slot;
 		p_slot = p_slot->next;
-		dbg("In while loop, p_slot = %p\n", p_slot);
 	}
 	if (p_slot == NULL) {
 		err("ERROR: pciehp_find_slot device=0x%x\n", device);
@@ -228,7 +225,6 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl)
 
 	DECLARE_WAITQUEUE(wait, current);
 
-	dbg("%s : start\n", __FUNCTION__);
 	add_wait_queue(&ctrl->queue, &wait);
 	if (!pciehp_poll_mode)
 		/* Sleep for up to 1 second */
@@ -240,7 +236,6 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl)
 	if (signal_pending(current))
 		retval =  -EINTR;
 
-	dbg("%s : end\n", __FUNCTION__);
 	return retval;
 }
 

drivers/pci/hotplug/pciehp_core.c

@@ -106,8 +106,6 @@ static int init_slots(struct controller *ctrl)
 	u32 slot_number;
 	int result = -ENOMEM;
 
-	dbg("%s\n",__FUNCTION__);
-
 	number_of_slots = ctrl->num_slots;
 	slot_device = ctrl->slot_device_offset;
 	slot_number = ctrl->first_slot;
@@ -362,7 +360,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	u8 value;
 	struct pci_dev *pdev;
 	
-	dbg("%s: Called by hp_drv\n", __FUNCTION__);
 	ctrl = kmalloc(sizeof(*ctrl), GFP_KERNEL);
 	if (!ctrl) {
 		err("%s : out of memory\n", __FUNCTION__);
@@ -370,8 +367,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	}
 	memset(ctrl, 0, sizeof(struct controller));
 
-	dbg("%s: DRV_thread pid = %d\n", __FUNCTION__, current->pid);
-	
 	pdev = dev->port;
 	ctrl->pci_dev = pdev;
 
@@ -389,7 +384,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 		rc = -ENOMEM;
 		goto err_out_unmap_mmio_region;
 	}
-	dbg("%s: ctrl->pci_bus %p\n", __FUNCTION__, ctrl->pci_bus);
 	memcpy (ctrl->pci_bus, pdev->bus, sizeof (*ctrl->pci_bus));
 	ctrl->bus = pdev->bus->number;  /* ctrl bus */
 	ctrl->slot_bus = pdev->subordinate->number;  /* bus controlled by this HPC */
@@ -419,7 +413,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	}
 
 	t_slot = pciehp_find_slot(ctrl, first_device_num);
-	dbg("%s: t_slot %p\n", __FUNCTION__, t_slot);
 
 	/*	Finish setting up the hot plug ctrl device */
 	ctrl->next_event = 0;
@@ -436,7 +429,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	down(&ctrl->crit_sect);
 
 	t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */
-	dbg("%s: adpater value %x\n", __FUNCTION__, value);
 	
 	if ((POWER_CTRL(ctrl->ctrlcap)) && !value) {
 		rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/
@@ -585,7 +577,6 @@ static void __exit pcied_cleanup(void)
 	dbg("unload_pciehpd()\n");
 	unload_pciehpd();
 
-	dbg("pcie_port_service_unregister\n");
 	pcie_port_service_unregister(&hpdriver_portdrv);
 
 	info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");

drivers/pci/hotplug/pciehp_ctrl.c

@@ -277,7 +277,9 @@ static int board_added(struct slot *p_slot)
 
 	hp_slot = p_slot->device - ctrl->slot_device_offset;
 
-	dbg("%s: p_slot->device, slot_offset, hp_slot = %d, %d ,%d\n", __FUNCTION__, p_slot->device, ctrl->slot_device_offset, hp_slot);
+	dbg("%s: slot device, slot offset, hp slot = %d, %d ,%d\n",
+			__FUNCTION__, p_slot->device,
+			ctrl->slot_device_offset, hp_slot);
 
 	/* Wait for exclusive access to hardware */
 	down(&ctrl->crit_sect);
@@ -305,9 +307,7 @@ static int board_added(struct slot *p_slot)
 	up(&ctrl->crit_sect);
 
 	/* Wait for ~1 second */
-	dbg("%s: before long_delay\n", __FUNCTION__);
 	wait_for_ctrl_irq (ctrl);
-	dbg("%s: afterlong_delay\n", __FUNCTION__);
 
 	/*  Check link training status */
 	rc = p_slot->hpc_ops->check_lnk_status(ctrl);  
@@ -444,13 +444,15 @@ static void pciehp_pushbutton_thread(unsigned long slot)
 	p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
 	if (getstatus) {
 		p_slot->state = POWEROFF_STATE;
-		dbg("In power_down_board, b:d(%x:%x)\n", p_slot->bus, p_slot->device);
+		dbg("%s: disabling bus:device(%x:%x)\n", __FUNCTION__,
+				p_slot->bus, p_slot->device);
 
 		pciehp_disable_slot(p_slot);
 		p_slot->state = STATIC_STATE;
 	} else {
 		p_slot->state = POWERON_STATE;
-		dbg("In add_board, b:d(%x:%x)\n", p_slot->bus, p_slot->device);
+		dbg("%s: adding bus:device(%x:%x)\n", __FUNCTION__,
+				p_slot->bus, p_slot->device);
 
 		if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
 			/* Wait for exclusive access to hardware */
@@ -492,13 +494,15 @@ static void pciehp_surprise_rm_thread(unsigned long slot)
 	p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
 	if (!getstatus) {
 		p_slot->state = POWEROFF_STATE;
-		dbg("In removing board, b:d(%x:%x)\n", p_slot->bus, p_slot->device);
+		dbg("%s: removing bus:device(%x:%x)\n",
+				__FUNCTION__, p_slot->bus, p_slot->device);
 
 		pciehp_disable_slot(p_slot);
 		p_slot->state = STATIC_STATE;
 	} else {
 		p_slot->state = POWERON_STATE;
-		dbg("In add_board, b:d(%x:%x)\n", p_slot->bus, p_slot->device);
+		dbg("%s: adding bus:device(%x:%x)\n",
+				__FUNCTION__, p_slot->bus, p_slot->device);
 
 		if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
 			/* Wait for exclusive access to hardware */
@@ -564,7 +568,6 @@ int pciehp_event_start_thread(void)
 		err ("Can't start up our event thread\n");
 		return -1;
 	}
-	dbg("Our event thread pid = %d\n", pid);
 	return 0;
 }
 
@@ -572,9 +575,7 @@ int pciehp_event_start_thread(void)
 void pciehp_event_stop_thread(void)
 {
 	event_finished = 1;
-	dbg("event_thread finish command given\n");
 	up(&event_semaphore);
-	dbg("wait for event_thread to exit\n");
 	down(&event_exit);
 }
 
@@ -619,8 +620,6 @@ static void interrupt_event_handler(struct controller *ctrl)
 
 				p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
 
-				dbg("hp_slot %d, p_slot %p\n", hp_slot, p_slot);
-
 				if (ctrl->event_queue[loop].event_type == INT_BUTTON_CANCEL) {
 					dbg("button cancel\n");
 					del_timer(&p_slot->task_event);
@@ -712,7 +711,6 @@ static void interrupt_event_handler(struct controller *ctrl)
 						p_slot->task_event.function = (void (*)(unsigned long)) pushbutton_helper_thread;
 						p_slot->task_event.data = (unsigned long) p_slot;
 
-						dbg("add_timer p_slot = %p\n", (void *) p_slot);
 						add_timer(&p_slot->task_event);
 					}
 				}