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Commit bab734fc authored by Fabio Porcedda's avatar Fabio Porcedda Committed by Greg Kroah-Hartman
Browse files

driver core: add helper macro for platform_driver_probe() boilerplate 



For simple modules that contain a single platform_driver without any
additional setup code then ends up being a block of duplicated
boilerplate.  This patch adds a new macro,
module_platform_driver_probe(), which replaces the
module_init()/module_exit() registrations with template functions.

This macro use the same idea of module_platform_driver().

This macro is useful to stop the misuse of module_platform_driver() for
removing the platform_driver_probe() boilerplate.

Signed-off-by: default avatarFabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 53a9c87e

include/linux/platform_device.h

+18 −0
Original line number Diff line number Diff line
@@ -204,6 +204,24 @@ static inline void platform_set_drvdata(struct platform_device *pdev, void *data 
	module_driver(__platform_driver, platform_driver_register, \

			platform_driver_unregister)



/* module_platform_driver_probe() - Helper macro for drivers that don't 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_platform_driver_probe(__platform_driver, __platform_probe) \

static int __init __platform_driver##_init(void) \

{ \

	return platform_driver_probe(&(__platform_driver), \

				     __platform_probe);    \

} \

module_init(__platform_driver##_init); \

static void __exit __platform_driver##_exit(void) \

{ \

	platform_driver_unregister(&(__platform_driver)); \

} \

module_exit(__platform_driver##_exit);



extern struct platform_device *platform_create_bundle(struct platform_driver *driver,

					int (*probe)(struct platform_device *),

					struct resource *res, unsigned int n_res,