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mmc: sdio: Add helper macro for sdio_driver boilerplate

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

Suggested-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Sean Wang 2019-03-14 05:01:58 +08:00 committed by Marcel Holtmann
parent bbb69b37be
commit db0a390835
1 changed files with 12 additions and 0 deletions
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12
include/linux/mmc/sdio_func.h
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@ -111,6 +111,18 @@ struct sdio_driver {
extern int sdio_register_driver(struct sdio_driver *);
extern void sdio_unregister_driver(struct sdio_driver *);
/**
* module_sdio_driver() - Helper macro for registering a SDIO driver
* @__sdio_driver: sdio_driver struct
*
* Helper macro for SDIO 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_sdio_driver(__sdio_driver) \
module_driver(__sdio_driver, sdio_register_driver, \
sdio_unregister_driver)
/*
* SDIO I/O operations
*/