From: Fabio Porcedda Date: Wed, 9 Jan 2013 11:15:26 +0000 (+0100) Subject: driver core: add helper macro for platform_driver_probe() boilerplate X-Git-Tag: next-20130218~29^2~122 X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-linux.git;a=commitdiff_plain;h=bab734fcdf2c690371e6749ce484b17653b3cb0e 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: Fabio Porcedda Signed-off-by: Greg Kroah-Hartman --- diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index a9ded9a3c175..c082c71f7225 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -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,