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-rw-r--r--include/linux/eisa.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index 1ff7c139252..fe806b6f030 100644
--- a/include/linux/eisa.h
+++ b/include/linux/eisa.h
@@ -61,10 +61,20 @@ struct eisa_driver {
#define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver)
+/* These external functions are only available when EISA support is enabled. */
+#ifdef CONFIG_EISA
+
extern struct bus_type eisa_bus_type;
int eisa_driver_register (struct eisa_driver *edrv);
void eisa_driver_unregister (struct eisa_driver *edrv);
+#else /* !CONFIG_EISA */
+
+static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; }
+static inline void eisa_driver_unregister (struct eisa_driver *edrv) { }
+
+#endif /* !CONFIG_EISA */
+
/* Mimics pci.h... */
static inline void *eisa_get_drvdata (struct eisa_device *edev)
{