s390/pci: rename pci_probe to s390_pci_probe

pci_probe is too generic and has a name clash with other common code parts.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 60e0372..aa74409 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -1072,13 +1072,13 @@
 	kmem_cache_destroy(zdev_fmb_cache);
 }
 
-unsigned int pci_probe = 1;
-EXPORT_SYMBOL_GPL(pci_probe);
+unsigned int s390_pci_probe = 1;
+EXPORT_SYMBOL_GPL(s390_pci_probe);
 
 char * __init pcibios_setup(char *str)
 {
 	if (!strcmp(str, "off")) {
-		pci_probe = 0;
+		s390_pci_probe = 0;
 		return NULL;
 	}
 	return str;
@@ -1088,7 +1088,7 @@
 {
 	int rc;
 
-	if (!pci_probe)
+	if (!s390_pci_probe)
 		return 0;
 
 	if (!test_facility(2) || !test_facility(69)