This reverts commit 89795eeba6d13b5ba432425dd43c34c66f2cebde.
The reverted commit is based on implementation of wiphy locking that isn't planned to redo on a stable kernel, so revert it to avoid warnings in different parts of wireless stack where wdev_lock() is held, like:
WARNING: CPU: 0 PID: 4296 at net/wireless/core.h:220 cfg80211_is_all_idle net/wireless/sme.c:662 [inline] WARNING: CPU: 0 PID: 4296 at net/wireless/core.h:220 disconnect_work+0x236/0x320 net/wireless/sme.c:676 Modules linked in: CPU: 0 PID: 4296 Comm: kworker/0:4 Not tainted 5.15.166-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events disconnect_work RIP: 0010:wdev_lock net/wireless/core.h:220 [inline] Call Trace: <TASK> process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Signed-off-by: Fedor Pchelkin pchelkin@ispras.ru --- net/wireless/core.h | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/net/wireless/core.h b/net/wireless/core.h index be186b5a15f3..1720abf36f92 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -217,7 +217,6 @@ void cfg80211_register_wdev(struct cfg80211_registered_device *rdev, static inline void wdev_lock(struct wireless_dev *wdev) __acquires(wdev) { - lockdep_assert_held(&wdev->wiphy->mtx); mutex_lock(&wdev->mtx); __acquire(wdev->mtx); } @@ -225,16 +224,11 @@ static inline void wdev_lock(struct wireless_dev *wdev) static inline void wdev_unlock(struct wireless_dev *wdev) __releases(wdev) { - lockdep_assert_held(&wdev->wiphy->mtx); __release(wdev->mtx); mutex_unlock(&wdev->mtx); }
-static inline void ASSERT_WDEV_LOCK(struct wireless_dev *wdev) -{ - lockdep_assert_held(&wdev->wiphy->mtx); - lockdep_assert_held(&wdev->mtx); -} +#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev) {