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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-03-03 11:16:40 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-03-10 12:46:04 +0000 |
| commit | a0521f70aee008f8b574f13ebdf0010f2f90db62 (patch) | |
| tree | 6b8e9ff17d190a5e81cd86303bd7a490b5dcd26b /include/linux/parport.h | |
| parent | ffb597b2bd3cd78b9bfb68f536743cd46dbb2cc4 (diff) | |
| download | lwn-a0521f70aee008f8b574f13ebdf0010f2f90db62.tar.gz lwn-a0521f70aee008f8b574f13ebdf0010f2f90db62.zip | |
parport: Introduce module_parport_driver() helper macro
Introduce module_parport_driver() helper macro to reduce boilerplate
in the existing and new code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210303091642.23929-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/parport.h')
| -rw-r--r-- | include/linux/parport.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/parport.h b/include/linux/parport.h index f981f794c850..1c16ffb8b908 100644 --- a/include/linux/parport.h +++ b/include/linux/parport.h @@ -332,9 +332,19 @@ int __must_check __parport_register_driver(struct parport_driver *, __parport_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) /* Unregister a high-level driver. */ -extern void parport_unregister_driver (struct parport_driver *); void parport_unregister_driver(struct parport_driver *); +/** + * module_parport_driver() - Helper macro for registering a modular parport driver + * @__parport_driver: struct parport_driver to be used + * + * Helper macro for parport drivers which do not do anything special in module + * init and 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_parport_driver(__parport_driver) \ + module_driver(__parport_driver, parport_register_driver, parport_unregister_driver) + /* If parport_register_driver doesn't fit your needs, perhaps * parport_find_xxx does. */ extern struct parport *parport_find_number (int); |