--- zzzz-none-000/linux-3.10.107/drivers/pci/hotplug/ibmphp_hpc.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/pci/hotplug/ibmphp_hpc.c	2021-02-04 17:41:59.000000000 +0000
@@ -258,7 +258,7 @@
 {
 	u8 rc;
 	void __iomem *wpg_addr;	// base addr + offset
-	unsigned long wpg_data;	// data to/from WPG LOHI format 
+	unsigned long wpg_data;	// data to/from WPG LOHI format
 	unsigned long ultemp;
 	unsigned long data;	// actual data HILO format
 	int i;
@@ -351,7 +351,7 @@
 }
 
 //------------------------------------------------------------
-//  Read from ISA type HPC 
+//  Read from ISA type HPC
 //------------------------------------------------------------
 static u8 isa_ctrl_read (struct controller *ctlr_ptr, u8 offset)
 {
@@ -372,7 +372,7 @@
 {
 	u16 start_address;
 	u16 port_address;
-	
+
 	start_address = ctlr_ptr->u.isa_ctlr.io_start;
 	port_address = start_address + (u16) offset;
 	outb (data, port_address);
@@ -533,7 +533,7 @@
 *
 * Return   0 or error codes
 *---------------------------------------------------------------------*/
-int ibmphp_hpc_readslot (struct slot * pslot, u8 cmd, u8 * pstatus)
+int ibmphp_hpc_readslot (struct slot *pslot, u8 cmd, u8 *pstatus)
 {
 	void __iomem *wpg_bbar = NULL;
 	struct controller *ctlr_ptr;
@@ -656,11 +656,11 @@
 	//--------------------------------------------------------------------
 	// cleanup
 	//--------------------------------------------------------------------
-	
+
 	// remove physical to logical address mapping
 	if ((ctlr_ptr->ctlr_type == 2) || (ctlr_ptr->ctlr_type == 4))
 		iounmap (wpg_bbar);
-	
+
 	free_hpc_access ();
 
 	debug_polling ("%s - Exit rc[%d]\n", __func__, rc);
@@ -672,7 +672,7 @@
 *
 * Action: issue a WRITE command to HPC
 *---------------------------------------------------------------------*/
-int ibmphp_hpc_writeslot (struct slot * pslot, u8 cmd)
+int ibmphp_hpc_writeslot (struct slot *pslot, u8 cmd)
 {
 	void __iomem *wpg_bbar = NULL;
 	struct controller *ctlr_ptr;
@@ -835,7 +835,7 @@
 		down (&semOperations);
 
 		switch (poll_state) {
-		case POLL_LATCH_REGISTER: 
+		case POLL_LATCH_REGISTER:
 			oldlatchlow = curlatchlow;
 			ctrl_count = 0x00;
 			list_for_each (pslotlist, &ibmphp_slot_head) {
@@ -892,16 +892,16 @@
 
 			if (kthread_should_stop())
 				goto out_sleep;
-			
+
 			down (&semOperations);
-			
+
 			if (poll_count >= POLL_LATCH_CNT) {
 				poll_count = 0;
 				poll_state = POLL_SLOTS;
 			} else
 				poll_state = POLL_LATCH_REGISTER;
 			break;
-		}	
+		}
 		/* give up the hardware semaphore */
 		up (&semOperations);
 		/* sleep for a short time just for good measure */
@@ -958,7 +958,7 @@
 	// bit 5 - HPC_SLOT_PWRGD
 	if ((pslot->status & 0x20) != (poldslot->status & 0x20))
 		// OFF -> ON: ignore, ON -> OFF: disable slot
-		if ((poldslot->status & 0x20) && (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status))) 
+		if ((poldslot->status & 0x20) && (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status)))
 			disable = 1;
 
 	// bit 6 - HPC_SLOT_BUS_SPEED
@@ -980,7 +980,7 @@
 					pslot->status &= ~HPC_SLOT_POWER;
 			}
 		}
-		// CLOSE -> OPEN 
+		// CLOSE -> OPEN
 		else if ((SLOT_PWRGD (poldslot->status) == HPC_SLOT_PWRGD_GOOD)
 			&& (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status))) {
 			disable = 1;
@@ -997,9 +997,8 @@
 		rc = ibmphp_do_disable_slot (pslot);
 	}
 
-	if (update || disable) {
+	if (update || disable)
 		ibmphp_update_slot_info (pslot);
-	}
 
 	debug ("%s - Exit rc[%d] disable[%x] update[%x]\n", __func__, rc, disable, update);
 
@@ -1075,7 +1074,7 @@
 	debug ("before locking operations \n");
 	ibmphp_lock_operations ();
 	debug ("after locking operations \n");
-	
+
 	// wait for poll thread to exit
 	debug ("before sem_exit down \n");
 	down (&sem_exit);
@@ -1102,7 +1101,7 @@
 * Value:
 *---------------------------------------------------------------------*/
 static int hpc_wait_ctlr_notworking (int timeout, struct controller *ctlr_ptr, void __iomem *wpg_bbar,
-				    u8 * pstatus)
+				    u8 *pstatus)
 {
 	int rc = 0;
 	u8 done = 0;