Fix non-ISA link error in drivers/scsi/advansys.c

When CONFIG_ISA is disabled, the isa_driver support will not be compiled
in. Define stubs so that we don't get link-time errors.

Signed-off-by: Matthew Wilcox <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

include/linux/isa.h

···
 
 #define to_isa_driver(x) container_of((x), struct isa_driver, driver)
 
+#ifdef CONFIG_ISA
 int isa_register_driver(struct isa_driver *, unsigned int);
 void isa_unregister_driver(struct isa_driver *);
+#else
+static inline int isa_register_driver(struct isa_driver *d, unsigned int i)
+{
+	return 0;
+}
+
+static inline void isa_unregister_driver(struct isa_driver *d)
+{
+}
+#endif
 
 #endif /* __LINUX_ISA_H */