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    Subject[PATCH 3/5] SPI: Add helper macro for spi_driver boilerplate
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    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>
    ---
    include/linux/spi/spi.h | 11 +++++++++++
    1 files changed, 11 insertions(+), 0 deletions(-)

    diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
    index bb4f5fb..176fce9 100644
    --- a/include/linux/spi/spi.h
    +++ b/include/linux/spi/spi.h
    @@ -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
    --
    1.7.7.1



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