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isa: Implement the module_isa_driver macro 

The module_isa_driver macro is a helper macro for ISA drivers which do
not do anything special in module init/exit. This eliminates a lot of
boilerplate code. Each module may only use this macro once, and calling
it replaces module_init and module_exit.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
William Breathitt Gray 2016-05-01 18:42:47 -04:00 committed by Greg Kroah-Hartman
parent 0619f39474
commit 339e6e31d2
1 changed files with 21 additions and 0 deletions
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21
include/linux/isa.h
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@ -36,4 +36,25 @@ static inline void isa_unregister_driver(struct isa_driver *d)
}
#endif
/**
* module_isa_driver() - Helper macro for registering a ISA driver
* @__isa_driver: isa_driver struct
* @__num_isa_dev: number of devices to register
*
* Helper macro for ISA drivers which do not do anything special in module
* init/exit. This eliminates a lot of boilerplate code. Each module may only
* use this macro once, and calling it replaces module_init and module_exit.
*/
#define module_isa_driver(__isa_driver, __num_isa_dev) \
static int __init __isa_driver##_init(void) \
{ \
return isa_register_driver(&(__isa_driver), __num_isa_dev); \
} \
module_init(__isa_driver##_init); \
static void __exit __isa_driver##_exit(void) \
{ \
isa_unregister_driver(&(__isa_driver)); \
} \
module_exit(__isa_driver##_exit);
#endif /* __LINUX_ISA_H */