From: H Hartley Sweeten Date: Wed, 2 May 2012 00:20:04 +0000 (-0700) Subject: staging: comedi: Add helper macro for comedi_driver boilerplate X-Git-Tag: firefly_0821_release~3680^2~2823^2~226 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=204162572ff4a679a47c68a5d5b3ac2bcba3830e;p=firefly-linux-kernel-4.4.55.git staging: comedi: Add helper macro for comedi_driver boilerplate Introduce the module_comedi_driver macro which is a convenience macro for comedi driver modules similar to module_platform_driver. It is intended to be used by drivers where the init/exit section does nothing but register/unregister the comedi driver. By using this macro it is possible to eliminate a few lines of boilerplate code per comedi driver. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Cc: Mori Hess Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 02e4ae0643a7..8828609f1ed6 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -298,6 +298,18 @@ int comedi_device_attach(struct comedi_device *dev, int comedi_driver_register(struct comedi_driver *); int comedi_driver_unregister(struct comedi_driver *); +/** + * module_comedi_driver() - Helper macro for registering a comedi driver + * @__comedi_driver: comedi_driver struct + * + * Helper macro for comedi 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_comedi_driver(__comedi_driver) \ + module_driver(__comedi_driver, comedi_driver_register, \ + comedi_driver_unregister) + void init_polling(void); void cleanup_polling(void); void start_polling(struct comedi_device *);