X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Feisa.h;h=fe806b6f030dfb2d7583751cc33d96f36a8b7d90;hb=13c48c490208d9e70d8d66d56f96c5054db69af7;hp=1ff7c1392525884b0f7ee005ae21ff822b01ae56;hpb=f0eef25339f92f7cd4aeea23d9ae97987a5a1e82;p=linux-2.6

diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index 1ff7c13925..fe806b6f03 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)
 {