Commit 95c0fd45 authored Mar 16, 2015 by Peter Huewe Committed by Rafael J. Wysocki Mar 18, 2015

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>

parent 2eb1eb02

include/linux/pnp.h

+12 −0

Original line number	Diff line number	Diff line
		@@ -510,4 +510,16 @@ static inline void pnp_unregister_driver(struct pnp_driver *drv) { }

		#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 */

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