Commit 4b1af479 authored by Johannes Berg's avatar Johannes Berg
Browse files

cfg80211: use lockdep to assert lock is held 



Instead of annotating with a comment, add a lockdep
annotation which also serves as documentation.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 6b684db1

net/wireless/scan.c

+4 −2
Original line number Diff line number Diff line
@@ -41,22 +41,24 @@ static void bss_release(struct kref *ref) 
	kfree(bss);

}



/* must hold dev->bss_lock! */

static void __cfg80211_unlink_bss(struct cfg80211_registered_device *dev,

				  struct cfg80211_internal_bss *bss)

{

	lockdep_assert_held(&dev->bss_lock);



	list_del_init(&bss->list);

	rb_erase(&bss->rbn, &dev->bss_tree);

	kref_put(&bss->ref, bss_release);

}



/* must hold dev->bss_lock! */

static void __cfg80211_bss_expire(struct cfg80211_registered_device *dev,

				  unsigned long expire_time)

{

	struct cfg80211_internal_bss *bss, *tmp;

	bool expired = false;



	lockdep_assert_held(&dev->bss_lock);



	list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {

		if (atomic_read(&bss->hold))

			continue;