diff options
| author | Alexander Aring <alex.aring@gmail.com> | 2014-10-28 20:21:27 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-10-29 01:19:08 +0300 |
| commit | 538181a879368f54544b91e414ea56a88008782b (patch) | |
| tree | cb864b940cf24188538591c6cdf0a24de024eb7c /net/mac802154/driver-ops.h | |
| parent | e363eca386d0c28d8c6c4f176e1fa48b09a75315 (diff) | |
| download | linux-538181a879368f54544b91e414ea56a88008782b.tar.xz | |
mac802154: add synchronization handling
This patch adds synchronization handling in start and stop driver ops
calls. This patch is mostly grab from mac80211 which was introduced by
commit ea77f12f2cc0f31168f2e0259e65a22202ac4dc2 ("mac80211: remove
tasklet enable/disable"). This is to be sure that we don't run into same
issues.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/mac802154/driver-ops.h')
| -rw-r--r-- | net/mac802154/driver-ops.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/mac802154/driver-ops.h b/net/mac802154/driver-ops.h index bb3ee03c1669..4b820cfeb538 100644 --- a/net/mac802154/driver-ops.h +++ b/net/mac802154/driver-ops.h @@ -30,6 +30,7 @@ static inline int drv_start(struct ieee802154_local *local) might_sleep(); local->started = true; + smp_mb(); return local->ops->start(&local->hw); } @@ -40,6 +41,12 @@ static inline void drv_stop(struct ieee802154_local *local) local->ops->stop(&local->hw); + /* sync away all work on the tasklet before clearing started */ + tasklet_disable(&local->tasklet); + tasklet_enable(&local->tasklet); + + barrier(); + local->started = false; } |