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[wpan-next,12/14] net: mac802154: Add a warning in the hot path

Message ID 20220120005122.309104-13-miquel.raynal@bootlin.com
State New
Headers show
Series ieee802154: Synchronous Tx API | expand

Commit Message

Miquel Raynal Jan. 20, 2022, 12:51 a.m. UTC
We should never start a transmission after the queue has been stopped.

But because it might work we don't kill the function here but rather
warn loudly the user that something is wrong.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 net/mac802154/tx.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
index 18ee6fcfcd7f..abd9a057521e 100644
--- a/net/mac802154/tx.c
+++ b/net/mac802154/tx.c
@@ -112,6 +112,8 @@  ieee802154_tx(struct ieee802154_local *local, struct sk_buff *skb)
 static netdev_tx_t
 ieee802154_hot_tx(struct ieee802154_local *local, struct sk_buff *skb)
 {
+	WARN_ON_ONCE(mac802154_queue_is_stopped(local));
+
 	return ieee802154_tx(local, skb);
 }