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Commit 1226d258 authored by Johannes Berg's avatar Johannes Berg
Browse files

cfg80211: regulatory: simplify uevent sending 



There's no need for the struct device_type with the uevent function
etc., just fill the country alpha2 when sending the event.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 6658ab80

net/wireless/reg.c

+8 −29
Original line number Diff line number Diff line
@@ -91,10 +91,6 @@ static struct regulatory_request __rcu *last_request = 
/* To trigger userspace events */

static struct platform_device *reg_pdev;



static const struct device_type reg_device_type = {

	.uevent = reg_device_uevent,

};



/*

 * Central wireless core regulatory domains, we only need two,

 * the current one and a world regulatory domain in case we have no
@@ -487,11 +483,16 @@ static inline void reg_regdb_query(const char *alpha2) {} 


/*

 * This lets us keep regulatory code which is updated on a regulatory

 * basis in userspace. Country information is filled in by

 * reg_device_uevent

 * basis in userspace.

 */

static int call_crda(const char *alpha2)

{

	char country[12];

	char *env[] = { country, NULL };



	snprintf(country, sizeof(country), "COUNTRY=%c%c",

		 alpha2[0], alpha2[1]);



	if (!is_world_regdom((char *) alpha2))

		pr_info("Calling CRDA for country: %c%c\n",

			alpha2[0], alpha2[1]);
@@ -501,7 +502,7 @@ static int call_crda(const char *alpha2) 
	/* query internal regulatory database (if it exists) */

	reg_regdb_query(alpha2);



	return kobject_uevent(&reg_pdev->dev.kobj, KOBJ_CHANGE);

	return kobject_uevent_env(&reg_pdev->dev.kobj, KOBJ_CHANGE, env);

}



static enum reg_request_treatment
@@ -2544,26 +2545,6 @@ int set_regdom(const struct ieee80211_regdomain *rd) 
	return 0;

}



int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)

{

	struct regulatory_request *lr;

	u8 alpha2[2];

	bool add = false;



	rcu_read_lock();

	lr = get_last_request();

	if (lr && !lr->processed) {

		memcpy(alpha2, lr->alpha2, 2);

		add = true;

	}

	rcu_read_unlock();



	if (add)

		return add_uevent_var(env, "COUNTRY=%c%c",

				      alpha2[0], alpha2[1]);

	return 0;

}



void wiphy_regulatory_register(struct wiphy *wiphy)

{

	struct regulatory_request *lr;
@@ -2614,8 +2595,6 @@ int __init regulatory_init(void) 
	if (IS_ERR(reg_pdev))

		return PTR_ERR(reg_pdev);



	reg_pdev->dev.type = &reg_device_type;



	spin_lock_init(&reg_requests_lock);

	spin_lock_init(&reg_pending_beacons_lock);

net/wireless/reg.h

+0 −1
Original line number Diff line number Diff line
@@ -26,7 +26,6 @@ enum nl80211_dfs_regions reg_get_dfs_region(struct wiphy *wiphy); 
int regulatory_hint_user(const char *alpha2,

			 enum nl80211_user_reg_hint_type user_reg_hint_type);



int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env);

void wiphy_regulatory_register(struct wiphy *wiphy);

void wiphy_regulatory_deregister(struct wiphy *wiphy);