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| author | Fabio Porcedda <fabio.porcedda@gmail.com> | 2013-01-09 12:15:26 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 17:39:33 -0800 |
| commit | bab734fcdf2c690371e6749ce484b17653b3cb0e (patch) | |
| tree | 752e2e5191d657a7cebb25cbeb7b313792ced093 /include/linux | |
| parent | 53a9c87e7e02abf3575be98c9fb2018fa30a61b9 (diff) | |
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 <fabio.porcedda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/platform_device.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index a9ded9a3c17..c082c71f722 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, |