diff options
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 8aa6b3ea91fa..f2d9afb8a7e9 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -631,6 +631,26 @@ void dm_destroy_crypto_profile(struct blk_crypto_profile *profile); DMEMIT("target_name=%s,target_version=%u.%u.%u", \ (y)->name, (y)->version[0], (y)->version[1], (y)->version[2]) +/** + * module_dm() - Helper macro for DM targets that don't do anything + * special in their module_init and module_exit. + * Each module may only use this macro once, and calling it replaces + * module_init() and module_exit(). + * + * @name: DM target's name + */ +#define module_dm(name) \ +static int __init dm_##name##_init(void) \ +{ \ + return dm_register_target(&(name##_target)); \ +} \ +module_init(dm_##name##_init) \ +static void __exit dm_##name##_exit(void) \ +{ \ + dm_unregister_target(&(name##_target)); \ +} \ +module_exit(dm_##name##_exit) + /* * Definitions of return values from target end_io function. */ |