s390/pci: remove clp_rescan_pci_devices()

there is only one call site of clp_rescan_pci_devices() and
all the function does is call zpci_remove_reserved_devices()
followed by a duplicating clp_scan_pci_devices().
So inline the single call as a call to zpci_remove_reserved_devices()
and clp_scan_pci_devices() and remove the function.
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

arch/s390/include/asm/pci.h

@@ -210,7 +210,6 @@ void zpci_remove_reserved_devices(void);
 /* CLP */
 int clp_setup_writeback_mio(void);
 int clp_scan_pci_devices(void);
-int clp_rescan_pci_devices(void);
 int clp_rescan_pci_devices_simple(u32 *fid);
 int clp_add_pci_device(u32, u32, int);
 int clp_enable_fh(struct zpci_dev *, u8);

arch/s390/pci/pci_clp.c

@@ -441,23 +441,6 @@ int clp_scan_pci_devices(void)
 	return rc;
 }
 
-int clp_rescan_pci_devices(void)
-{
-	struct clp_req_rsp_list_pci *rrb;
-	int rc;
-
-	zpci_remove_reserved_devices();
-
-	rrb = clp_alloc_block(GFP_KERNEL);
-	if (!rrb)
-		return -ENOMEM;
-
-	rc = clp_list_pci(rrb, NULL, __clp_add);
-
-	clp_free_block(rrb);
-	return rc;
-}
-
 /* Rescan PCI functions and refresh function handles. If fid is non-NULL only
  * refresh the handle of the function matching @fid
  */

arch/s390/pci/pci_event.c

@@ -150,7 +150,8 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
 		}
 		break;
 	case 0x0306: /* 0x308 or 0x302 for multiple devices */
-		clp_rescan_pci_devices();
+		zpci_remove_reserved_devices();
+		clp_scan_pci_devices();
 		break;
 	case 0x0308: /* Standby -> Reserved */
 		if (!zdev)