From: Axel Lin Date: Wed, 4 Apr 2012 06:51:08 +0000 (-0700) Subject: Input: gameport - add helper macro for gameport_driver boilerplate X-Git-Tag: firefly_0821_release~176^2~541^2~341^2~46 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=45b2604eaaa105223ce60117b0482ca8a488f9c4;p=firefly-linux-kernel-4.4.55.git Input: gameport - add helper macro for gameport_driver boilerplate This patch introduces the module_gameport_driver macro which is a convenience macro for gameport driver modules similar to module_platform_driver. It is intended to be used by drivers which init/exit section does nothing but registers/unregisters the gameport driver. By using this macro it is possible to eliminate a few lines of boilerplate code per gameport driver. Based on work done by Lars-Peter Clausen for other buses (i2c and spi). Signed-off-by: Axel Lin Signed-off-by: Dmitry Torokhov --- diff --git a/include/linux/gameport.h b/include/linux/gameport.h index b456b08d70ed..b986be513406 100644 --- a/include/linux/gameport.h +++ b/include/linux/gameport.h @@ -153,6 +153,19 @@ int __must_check __gameport_register_driver(struct gameport_driver *drv, void gameport_unregister_driver(struct gameport_driver *drv); +/** + * module_gameport_driver() - Helper macro for registering a gameport driver + * @__gameport_driver: gameport_driver struct + * + * Helper macro for gameport drivers which do not do anything special in + * module init/exit. This eliminates a lot of boilerplate. Each module may + * only use this macro once, and calling it replaces module_init() and + * module_exit(). + */ +#define module_gameport_driver(__gameport_driver) \ + module_driver(__gameport_driver, gameport_register_driver, \ + gameport_unregister_driver) + #endif /* __KERNEL__ */ #define GAMEPORT_MODE_DISABLED 0