A trio of minor fixes:

Export acpi_get_firmware_table (Matthew Wilcox)
Use proper root proc entry (Kochi Takayoshi)
Fix early-boot table parsing (Bjorn Helgaas)

drivers/acpi/acpi_ksyms.c

@@ -62,6 +62,7 @@ EXPORT_SYMBOL(acpi_get_object_info);
 EXPORT_SYMBOL(acpi_get_next_object);
 EXPORT_SYMBOL(acpi_evaluate_object);
 EXPORT_SYMBOL(acpi_get_table);
+EXPORT_SYMBOL(acpi_get_firmware_table);
 EXPORT_SYMBOL(acpi_install_notify_handler);
 EXPORT_SYMBOL(acpi_remove_notify_handler);
 EXPORT_SYMBOL(acpi_install_gpe_handler);

drivers/acpi/bus.c

@@ -2052,7 +2052,7 @@ acpi_bus_init (void)
 
 	/* Mimic structured exception handling */
 error4:
-	remove_proc_entry("ACPI", NULL);
+	remove_proc_entry(ACPI_BUS_FILE_ROOT, NULL);
 error3:
 	acpi_bus_remove(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
 error2:

drivers/acpi/tables.c

@@ -36,7 +36,7 @@
 
 #define PREFIX			"ACPI: "
 
-#define ACPI_MAX_TABLES		ACPI_TABLE_COUNT
+#define ACPI_MAX_TABLES		256
 
 static char *acpi_table_signatures[ACPI_TABLE_COUNT] = {
 	[ACPI_TABLE_UNKNOWN]	= "????",
@@ -338,7 +338,7 @@ acpi_table_get_sdt (
 		sdt.count = (header->length - sizeof(struct acpi_table_header)) >> 3;
 		if (sdt.count > ACPI_MAX_TABLES) {
 			printk(KERN_WARNING PREFIX "Truncated %lu XSDT entries\n",
-				(ACPI_MAX_TABLES - sdt.count));
+				(sdt.count - ACPI_MAX_TABLES));
 			sdt.count = ACPI_MAX_TABLES;
 		}
 
@@ -383,7 +383,7 @@ acpi_table_get_sdt (
 		sdt.count = (header->length - sizeof(struct acpi_table_header)) >> 2;
 		if (sdt.count > ACPI_MAX_TABLES) {
 			printk(KERN_WARNING PREFIX "Truncated %lu RSDT entries\n",
-				(ACPI_TABLE_COUNT - sdt.count));
+				(sdt.count - ACPI_TABLE_COUNT));
 			sdt.count = ACPI_MAX_TABLES;
 		}