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mtd: Add helper macro for register_mtd_blktrans boilerplate

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

Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210213164600.409061-2-zhengdejin5@gmail.com
This commit is contained in:
Dejin Zheng 2021-02-14 00:45:53 +08:00 committed by Miquel Raynal
parent 683313993d
commit 6cfeb41a82
1 changed files with 11 additions and 0 deletions
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11
include/linux/mtd/blktrans.h
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@ -77,5 +77,16 @@ extern int add_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev); extern int del_mtd_blktrans_dev(struct mtd_blktrans_dev *dev);
extern int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev); extern int mtd_blktrans_cease_background(struct mtd_blktrans_dev *dev);
/**
* module_mtd_blktrans() - Helper macro for registering a mtd blktrans driver
* @__mtd_blktrans: mtd_blktrans_ops struct
*
* Helper macro for mtd blktrans 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_mtd_blktrans(__mtd_blktrans) \
module_driver(__mtd_blktrans, register_mtd_blktrans, \
deregister_mtd_blktrans)
#endif /* __MTD_TRANS_H__ */ #endif /* __MTD_TRANS_H__ */