Commit ea83f81b authored by Wei Yongjun's avatar Wei Yongjun Committed by Rafael J. Wysocki
Browse files

PM / OPP: using kfree_rcu() to simplify the code 

The callback function of call_rcu() just calls a kfree(), so we
can use kfree_rcu() instead of call_rcu() + callback function.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch

)

Signed-off-by: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 0779726c

drivers/base/power/opp.c

+1 −12
Original line number Diff line number Diff line
@@ -460,17 +460,6 @@ int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt) 
	return 0;

}



/**

 * opp_free_rcu() - helper to clear the struct opp when grace period has

 * elapsed without blocking the the caller of opp_set_availability

 */

static void opp_free_rcu(struct rcu_head *head)

{

	struct opp *opp = container_of(head, struct opp, head);



	kfree(opp);

}



/**

 * opp_set_availability() - helper to set the availability of an opp

 * @dev:		device for which we do this operation
@@ -542,7 +531,7 @@ static int opp_set_availability(struct device *dev, unsigned long freq, 


	list_replace_rcu(&opp->node, &new_opp->node);

	mutex_unlock(&dev_opp_list_lock);

	call_rcu(&opp->head, opp_free_rcu);

	kfree_rcu(opp, head);



	/* Notify the change of the OPP availability */

	if (availability_req)