Commit 3acbb014 authored Nov 16, 2011 by Lars-Peter Clausen Committed by Greg Kroah-Hartman Nov 17, 2011

SPI: Add helper macro for spi_driver boilerplate



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

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent 7c92784a

include/linux/spi/spi.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -200,6 +200,17 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
		driver_unregister(&sdrv->driver);
		}

		/**
		* module_spi_driver() - Helper macro for registering a SPI driver
		* @__spi_driver: spi_driver struct
		*
		* Helper macro for SPI 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_spi_driver(__spi_driver) \
		module_driver(__spi_driver, spi_register_driver, \
		spi_unregister_driver)

		/**
		* struct spi_master - interface to SPI master controller

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