mac802154: use atomic ops for sequence incrementation

This patch will use atomic operations for sequence number incrementation
while MAC header generation. Upper layers like af_802154 or 6LoWPAN
could call this function in a parallel context while generating 802.15.4
MAC header before queuing into wpan interfaces transmit queue.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index c6aa1d210182..4de59aa96173 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -177,9 +177,9 @@ struct wpan_dev {
         __le64 extended_addr;
 
         /* MAC BSN field */
-        u8 bsn;
+        atomic_t bsn;
         /* MAC DSN field */
-        u8 dsn;
+        atomic_t dsn;
 
         u8 min_be;
         u8 max_be;