ACPI: Reduce ACPI resource conflict message to KERN_WARNING, printk cleanup

By default, ACPI resource conflict messages are logged at level
KERN_ERR. This is a rather high level for a message that is more a
warning than an indication of a real kernel error. Also, KERN_ERR level
messages can appear over some boot splash screens, and this message is
not serious enough to warrant such treatment. Thus, the log level has
been reduced to KERN_WARNING.

[lenb changed to KERN_WARNING rather than all the way to KERN_INFO]

Also, cleanup message to use %pR resource printing format.

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/osl.c

@@ -1151,16 +1151,10 @@ int acpi_check_resource_conflict(const struct resource *res)
 
 	if (clash) {
 		if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) {
-			printk("%sACPI: %s resource %s [0x%llx-0x%llx]"
-			       " conflicts with ACPI region %s"
-			       " [0x%llx-0x%llx]\n",
-			       acpi_enforce_resources == ENFORCE_RESOURCES_LAX
-			       ? KERN_WARNING : KERN_ERR,
-			       ioport ? "I/O" : "Memory", res->name,
-			       (long long) res->start, (long long) res->end,
-			       res_list_elem->name,
-			       (long long) res_list_elem->start,
-			       (long long) res_list_elem->end);
+			printk(KERN_WARNING "ACPI: resource %s %pR"
+			       " conflicts with ACPI region %s %pR\n",
+			       res->name, res, res_list_elem->name,
+			       res_list_elem);
 			if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX)
 				printk(KERN_NOTICE "ACPI: This conflict may"
 				       " cause random problems and system"