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PNP: Add helper macro for pnp_register_driver boilerplate 

This patch introduces the module_pnp_driver macro which is a
convenience macro for PNP driver modules similar to module_pci_driver.
It is intended to be used by drivers which init/exit section does nothing
but register/unregister the PNP driver. By using this macro it is
possible to eliminate a few lines of boilerplate code per PNP driver.

Based on work done by Lars-Peter Clausen <lars@metafoo.de> for other
busses (i2c and spi) and Greg KH for PCI.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Peter Huewe 2015-03-16 21:46:30 +01:00 committed by Rafael J. Wysocki
parent 2eb1eb02dd
commit 95c0fd457b
1 changed files with 12 additions and 0 deletions
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12
include/linux/pnp.h
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@ -510,4 +510,16 @@ static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
#endif /* CONFIG_PNP */ #endif /* CONFIG_PNP */
/**
* module_pnp_driver() - Helper macro for registering a PnP driver
* @__pnp_driver: pnp_driver struct
*
* Helper macro for PnP drivers which do not 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_pnp_driver(__pnp_driver) \
module_driver(__pnp_driver, pnp_register_driver, \
pnp_unregister_driver)
#endif /* _LINUX_PNP_H */ #endif /* _LINUX_PNP_H */