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Commit 4befb026 authored by Kay Sievers's avatar Kay Sievers Committed by Rusty Russell
Browse files

module: change attr callbacks to take struct module_kobject 



This simplifies the next patch, where we have an attribute on a
builtin module (ie. module == NULL).

Signed-off-by: default avatarKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (split into 2)
parent 66574cc0

include/linux/module.h

+12 −11
Original line number Diff line number Diff line
@@ -48,10 +48,18 @@ struct modversion_info 


struct module;



struct module_kobject {

	struct kobject kobj;

	struct module *mod;

	struct kobject *drivers_dir;

	struct module_param_attrs *mp;

};



struct module_attribute {

	struct attribute attr;

        ssize_t (*show)(struct module_attribute *, struct module *, char *);

        ssize_t (*store)(struct module_attribute *, struct module *,

	ssize_t (*show)(struct module_attribute *, struct module_kobject *,

			char *);

	ssize_t (*store)(struct module_attribute *, struct module_kobject *,

			 const char *, size_t count);

	void (*setup)(struct module *, const char *);

	int (*test)(struct module *);
@@ -65,15 +73,8 @@ struct module_version_attribute { 
} __attribute__ ((__aligned__(sizeof(void *))));



extern ssize_t __modver_version_show(struct module_attribute *,

				     struct module *, char *);

				     struct module_kobject *, char *);



struct module_kobject

{

	struct kobject kobj;

	struct module *mod;

	struct kobject *drivers_dir;

	struct module_param_attrs *mp;

};



/* These are either module local, or the kernel's dummy ones. */

extern int init_module(void);

kernel/module.c

+7 −7
Original line number Diff line number Diff line
@@ -545,9 +545,9 @@ static void setup_modinfo_##field(struct module *mod, const char *s) \ 
	mod->field = kstrdup(s, GFP_KERNEL);                          \

}                                                                     \

static ssize_t show_modinfo_##field(struct module_attribute *mattr,   \

	                struct module *mod, char *buffer)             \

			struct module_kobject *mk, char *buffer)      \

{                                                                     \

	return sprintf(buffer, "%s\n", mod->field);                   \

	return sprintf(buffer, "%s\n", mk->mod->field);               \

}                                                                     \

static int modinfo_##field##_exists(struct module *mod)               \

{                                                                     \
@@ -902,9 +902,9 @@ void symbol_put_addr(void *addr) 
EXPORT_SYMBOL_GPL(symbol_put_addr);



static ssize_t show_refcnt(struct module_attribute *mattr,

			   struct module *mod, char *buffer)

			   struct module_kobject *mk, char *buffer)

{

	return sprintf(buffer, "%u\n", module_refcount(mod));

	return sprintf(buffer, "%u\n", module_refcount(mk->mod));

}



static struct module_attribute refcnt = {
@@ -952,11 +952,11 @@ static inline int module_unload_init(struct module *mod) 
#endif /* CONFIG_MODULE_UNLOAD */



static ssize_t show_initstate(struct module_attribute *mattr,

			   struct module *mod, char *buffer)

			      struct module_kobject *mk, char *buffer)

{

	const char *state = "unknown";



	switch (mod->state) {

	switch (mk->mod->state) {

	case MODULE_STATE_LIVE:

		state = "live";

		break;
@@ -1187,7 +1187,7 @@ struct module_sect_attrs 
};



static ssize_t module_sect_show(struct module_attribute *mattr,

				struct module *mod, char *buf)

				struct module_kobject *mk, char *buf)

{

	struct module_sect_attr *sattr =

		container_of(mattr, struct module_sect_attr, mattr);

kernel/params.c

+5 −5
Original line number Diff line number Diff line
@@ -511,7 +511,7 @@ struct module_param_attrs 
#define to_param_attr(n) container_of(n, struct param_attribute, mattr)



static ssize_t param_attr_show(struct module_attribute *mattr,

			       struct module *mod, char *buf)

			       struct module_kobject *mk, char *buf)

{

	int count;

	struct param_attribute *attribute = to_param_attr(mattr);
@@ -531,7 +531,7 @@ static ssize_t param_attr_show(struct module_attribute *mattr, 


/* sysfs always hands a nul-terminated string in buf.  We rely on that. */

static ssize_t param_attr_store(struct module_attribute *mattr,

				struct module *owner,

				struct module_kobject *km,

				const char *buf, size_t len)

{

 	int err;
@@ -807,7 +807,7 @@ static void __init param_sysfs_builtin(void) 
}



ssize_t __modver_version_show(struct module_attribute *mattr,

			      struct module *mod, char *buf)

			      struct module_kobject *mk, char *buf)

{

	struct module_version_attribute *vattr =

		container_of(mattr, struct module_version_attribute, mattr);
@@ -852,7 +852,7 @@ static ssize_t module_attr_show(struct kobject *kobj, 
	if (!attribute->show)

		return -EIO;



	ret = attribute->show(attribute, mk->mod, buf);

	ret = attribute->show(attribute, mk, buf);



	return ret;

}
@@ -871,7 +871,7 @@ static ssize_t module_attr_store(struct kobject *kobj, 
	if (!attribute->store)

		return -EIO;



	ret = attribute->store(attribute, mk->mod, buf, len);

	ret = attribute->store(attribute, mk, buf, len);



	return ret;

}