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Commit b9eab011 authored by Brian Norris's avatar Brian Norris
Browse files

mtd: partitions: add module_mtd_part_parser() helper 



This can help eliminate some boilerplate by generating the module_init()
and module_exit() functions, and by automatically assigning the module
owner.

Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent 1d158315

drivers/mtd/mtdpart.c

+6 −2
Original line number Diff line number Diff line
@@ -703,13 +703,17 @@ static struct mtd_part_parser *get_partition_parser(const char *name) 


#define put_partition_parser(p) do { module_put((p)->owner); } while (0)



void register_mtd_parser(struct mtd_part_parser *p)

int __register_mtd_parser(struct mtd_part_parser *p, struct module *owner)

{

	p->owner = owner;



	spin_lock(&part_parser_lock);

	list_add(&p->list, &part_parsers);

	spin_unlock(&part_parser_lock);



	return 0;

}

EXPORT_SYMBOL_GPL(register_mtd_parser);

EXPORT_SYMBOL_GPL(__register_mtd_parser);



void deregister_mtd_parser(struct mtd_part_parser *p)

{

include/linux/mtd/partitions.h

+13 −1
Original line number Diff line number Diff line
@@ -73,9 +73,21 @@ struct mtd_part_parser { 
			struct mtd_part_parser_data *);

};



extern void register_mtd_parser(struct mtd_part_parser *parser);

extern int __register_mtd_parser(struct mtd_part_parser *parser,

				 struct module *owner);

#define register_mtd_parser(parser) __register_mtd_parser(parser, THIS_MODULE)



extern void deregister_mtd_parser(struct mtd_part_parser *parser);



/*

 * module_mtd_part_parser() - Helper macro for MTD partition parsers that don't

 * do anything special in module init/exit. Each driver may only use this macro

 * once, and calling it replaces module_init() and module_exit().

 */

#define module_mtd_part_parser(__mtd_part_parser) \

	module_driver(__mtd_part_parser, register_mtd_parser, \

		      deregister_mtd_parser)



int mtd_is_partition(const struct mtd_info *mtd);

int mtd_add_partition(struct mtd_info *master, const char *name,

		      long long offset, long long length);