Input:

This patch adds dummy gameport_register_port, gameport_unregister_port
and gameport_set_phys functions to gameport.h for the case when a driver
can't use gameport.

This fixes the compilation of some OSS drivers with GAMEPORT=n without
the need to #if inside every single driver.

This patch also removes the non-working and now obsolete SOUND_GAMEPORT.

This patch is also an alternative solution for ALSA drivers with similar
problems (but #if's inside the drivers might have the advantage of
saving some more bytes of gameport is not available).

The only user-visible change is that for GAMEPORT=m the affected OSS
drivers are now allowed to be built statically (but they won't have
gameport support).

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 25 insertions, 3 deletions

diff --git a/include/linux/gameport.h b/include/linux/gameport.h
index b1272f822cfa..cd623eccdbea 100644
--- a/include/linux/gameport.h
+++ b/include/linux/gameport.h
@@ -67,6 +67,8 @@ int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mo
 void gameport_close(struct gameport *gameport);
 void gameport_rescan(struct gameport *gameport);
 
+#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
+
 void __gameport_register_port(struct gameport *gameport, struct module *owner);
 static inline void gameport_register_port(struct gameport *gameport)
 {
@@ -75,6 +77,29 @@ static inline void gameport_register_port(struct gameport *gameport)
 
 void gameport_unregister_port(struct gameport *gameport);
 
+void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
+	__attribute__ ((format (printf, 2, 3)));
+
+#else
+
+static inline void gameport_register_port(struct gameport *gameport)
+{
+	return;
+}
+
+static inline void gameport_unregister_port(struct gameport *gameport)
+{
+	return;
+}
+
+static inline void gameport_set_phys(struct gameport *gameport,
+				     const char *fmt, ...)
+{
+	return;
+}
+
+#endif
+
 static inline struct gameport *gameport_allocate_port(void)
 {
 	struct gameport *gameport = kcalloc(1, sizeof(struct gameport), GFP_KERNEL);
@@ -92,9 +117,6 @@ static inline void gameport_set_name(struct gameport *gameport, const char *name
 	strlcpy(gameport->name, name, sizeof(gameport->name));
 }
 
-void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
-	__attribute__ ((format (printf, 2, 3)));
-
 /*
  * Use the following fucntions to manipulate gameport's per-port
  * driver-specific data.